Add header-based metadata opt-in for search responses

- Add Meili-Include-Metadata header constant - Modify perform_search to conditionally include metadata based on header - Modify perform_federated_search to conditionally include metadata based on header - Update all search routes to check for header and pass include_metadata parameter - Forward Meili-Include-Metadata header to remote requests for federated search - Ensure remote queries include primaryKey metadata when header is present
WIP: Add metadata field with queryUid, indexUid, primaryKey, and remote
2025-11-22 04:36:32 +00:00 · 2025-10-02 11:04:19 +02:00 · 2025-10-01 17:55:15 +02:00 · 2025-09-30 17:34:29 +02:00 · 2025-09-30 15:22:35 +02:00 · 2025-09-23 11:44:14 +02:00
23 changed files with 658 additions and 324 deletions
--- a/crates/meilisearch/Cargo.toml
+++ b/crates/meilisearch/Cargo.toml
@@ -91,7 +91,7 @@ time = { version = "0.3.41", features = [
 ] }
 tokio = { version = "1.45.1", features = ["full"] }
 toml = "0.8.23"
-uuid = { version = "1.17.0", features = ["serde", "v4"] }
+uuid = { version = "1.18.0", features = ["serde", "v4", "v7"] }
 serde_urlencoded = "0.7.1"
 termcolor = "1.4.1"
 url = { version = "2.5.4", features = ["serde"] }
--- a/crates/meilisearch/src/routes/indexes/search.rs
+++ b/crates/meilisearch/src/routes/indexes/search.rs
@@ -13,6 +13,7 @@ use meilisearch_types::serde_cs::vec::CS;
 use serde_json::Value;
 use tracing::debug;
 use utoipa::{IntoParams, OpenApi};
+use uuid::Uuid;

 use crate::analytics::Analytics;
 use crate::error::MeilisearchHttpError;
@@ -25,7 +26,7 @@ use crate::search::{
    add_search_rules, perform_search, HybridQuery, MatchingStrategy, RankingScoreThreshold,
    RetrieveVectors, SearchKind, SearchQuery, SearchResult, SemanticRatio, DEFAULT_CROP_LENGTH,
    DEFAULT_CROP_MARKER, DEFAULT_HIGHLIGHT_POST_TAG, DEFAULT_HIGHLIGHT_PRE_TAG,
-    DEFAULT_SEARCH_LIMIT, DEFAULT_SEARCH_OFFSET, DEFAULT_SEMANTIC_RATIO,
+    DEFAULT_SEARCH_LIMIT, DEFAULT_SEARCH_OFFSET, DEFAULT_SEMANTIC_RATIO, INCLUDE_METADATA_HEADER,
 };
 use crate::search_queue::SearchQueue;

@@ -325,7 +326,8 @@ pub async fn search_with_url_query(
    req: HttpRequest,
    analytics: web::Data<Analytics>,
 ) -> Result<HttpResponse, ResponseError> {
-    debug!(parameters = ?params, "Search get");
+    let request_uid = Uuid::now_v7();
+    debug!(request_uid = ?request_uid, parameters = ?params, "Search get");
    let index_uid = IndexUid::try_from(index_uid.into_inner())?;

    let mut query: SearchQuery = params.into_inner().try_into()?;
@@ -343,6 +345,11 @@ pub async fn search_with_url_query(
        search_kind(&query, index_scheduler.get_ref(), index_uid.to_string(), &index)?;
    let retrieve_vector = RetrieveVectors::new(query.retrieve_vectors);
    let permit = search_queue.try_get_search_permit().await?;
+    let include_metadata = req
+        .headers()
+        .get(INCLUDE_METADATA_HEADER)
+        .is_some();
+
    let search_result = tokio::task::spawn_blocking(move || {
        perform_search(
            index_uid.to_string(),
@@ -351,6 +358,8 @@ pub async fn search_with_url_query(
            search_kind,
            retrieve_vector,
            index_scheduler.features(),
+            request_uid,
+            include_metadata,
        )
    })
    .await;
@@ -363,7 +372,7 @@ pub async fn search_with_url_query(

    let search_result = search_result?;

-    debug!(returns = ?search_result, "Search get");
+    debug!(request_uid = ?request_uid, returns = ?search_result, "Search get");
    Ok(HttpResponse::Ok().json(search_result))
 }

@@ -432,9 +441,10 @@ pub async fn search_with_post(
    analytics: web::Data<Analytics>,
 ) -> Result<HttpResponse, ResponseError> {
    let index_uid = IndexUid::try_from(index_uid.into_inner())?;
+    let request_uid = Uuid::now_v7();

    let mut query = params.into_inner();
-    debug!(parameters = ?query, "Search post");
+    debug!(request_uid = ?request_uid, parameters = ?query, "Search post");

    // Tenant token search_rules.
    if let Some(search_rules) = index_scheduler.filters().get_index_search_rules(&index_uid) {
@@ -449,6 +459,11 @@ pub async fn search_with_post(
        search_kind(&query, index_scheduler.get_ref(), index_uid.to_string(), &index)?;
    let retrieve_vectors = RetrieveVectors::new(query.retrieve_vectors);

+    let include_metadata = req
+        .headers()
+        .get(INCLUDE_METADATA_HEADER)
+        .is_some();
+
    let permit = search_queue.try_get_search_permit().await?;
    let search_result = tokio::task::spawn_blocking(move || {
        perform_search(
@@ -458,6 +473,8 @@ pub async fn search_with_post(
            search_kind,
            retrieve_vectors,
            index_scheduler.features(),
+            request_uid,
+            include_metadata,
        )
    })
    .await;
@@ -473,7 +490,7 @@ pub async fn search_with_post(

    let search_result = search_result?;

-    debug!(returns = ?search_result, "Search post");
+    debug!(request_uid = ?request_uid, returns = ?search_result, "Search post");
    Ok(HttpResponse::Ok().json(search_result))
 }

--- a/crates/meilisearch/src/routes/indexes/search_analytics.rs
+++ b/crates/meilisearch/src/routes/indexes/search_analytics.rs
@@ -234,6 +234,8 @@ impl<Method: AggregateMethod> SearchAggregator<Method> {
            facet_stats: _,
            degraded,
            used_negative_operator,
+            request_uid: _,
+            metadata: _,
        } = result;

        self.total_succeeded = self.total_succeeded.saturating_add(1);
--- a/crates/meilisearch/src/routes/multi_search.rs
+++ b/crates/meilisearch/src/routes/multi_search.rs
@@ -9,6 +9,7 @@ use meilisearch_types::keys::actions;
 use serde::Serialize;
 use tracing::debug;
 use utoipa::{OpenApi, ToSchema};
+use uuid::Uuid;

 use super::multi_search_analytics::MultiSearchAggregator;
 use crate::analytics::Analytics;
@@ -20,7 +21,7 @@ use crate::routes::indexes::search::search_kind;
 use crate::search::{
    add_search_rules, perform_federated_search, perform_search, FederatedSearch,
    FederatedSearchResult, RetrieveVectors, SearchQueryWithIndex, SearchResultWithIndex,
-    PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE,
+    PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE, INCLUDE_METADATA_HEADER,
 };
 use crate::search_queue::SearchQueue;

@@ -151,6 +152,7 @@ pub async fn multi_search_with_post(
    // Since we don't want to process half of the search requests and then get a permit refused
    // we're going to get one permit for the whole duration of the multi-search request.
    let permit = search_queue.try_get_search_permit().await?;
+    let request_uid = Uuid::now_v7();

    let federated_search = params.into_inner();

@@ -188,14 +190,32 @@ pub async fn multi_search_with_post(

    let response = match federation {
        Some(federation) => {
+            debug!(
+                request_uid = ?request_uid,
+                federation = ?federation,
+                parameters = ?queries,
+                "Federated-search"
+            );
+
            // check remote header
            let is_proxy = req
                .headers()
                .get(PROXY_SEARCH_HEADER)
                .is_some_and(|value| value.as_bytes() == PROXY_SEARCH_HEADER_VALUE.as_bytes());
-            let search_result =
-                perform_federated_search(&index_scheduler, queries, federation, features, is_proxy)
-                    .await;
+            let include_metadata = req
+                .headers()
+                .get(INCLUDE_METADATA_HEADER)
+                .is_some();
+            let search_result = perform_federated_search(
+                &index_scheduler,
+                queries,
+                federation,
+                features,
+                is_proxy,
+                request_uid,
+                include_metadata,
+            )
+            .await;
            permit.drop().await;

            if search_result.is_ok() {
@@ -203,9 +223,21 @@ pub async fn multi_search_with_post(
            }

            analytics.publish(multi_aggregate, &req);
+
+            debug!(
+                request_uid = ?request_uid,
+                returns = ?search_result,
+                "Federated-search"
+            );
+
            HttpResponse::Ok().json(search_result?)
        }
        None => {
+            let include_metadata = req
+                .headers()
+                .get(INCLUDE_METADATA_HEADER)
+                .is_some();
+
            // Explicitly expect a `(ResponseError, usize)` for the error type rather than `ResponseError` only,
            // so that `?` doesn't work if it doesn't use `with_index`, ensuring that it is not forgotten in case of code
            // changes.
@@ -216,7 +248,12 @@ pub async fn multi_search_with_post(
                    .map(SearchQueryWithIndex::into_index_query_federation)
                    .enumerate()
                {
-                    debug!(on_index = query_index, parameters = ?query, "Multi-search");
+                    debug!(
+                        request_uid = ?request_uid,
+                        on_index = query_index,
+                        parameters = ?query,
+                        "Multi-search"
+                    );

                    if federation_options.is_some() {
                        return Err((
@@ -258,6 +295,8 @@ pub async fn multi_search_with_post(
                            search_kind,
                            retrieve_vector,
                            features,
+                            request_uid,
+                            include_metadata,
                        )
                    })
                    .await
@@ -286,7 +325,11 @@ pub async fn multi_search_with_post(
                err
            })?;

-            debug!(returns = ?search_results, "Multi-search");
+            debug!(
+                request_uid = ?request_uid,
+                returns = ?search_results,
+                "Multi-search"
+            );

            HttpResponse::Ok().json(SearchResults { results: search_results })
        }
--- a/crates/meilisearch/src/search/federated/mod.rs
+++ b/crates/meilisearch/src/search/federated/mod.rs
@@ -4,7 +4,7 @@ mod types;
 mod weighted_scores;

 pub use perform::perform_federated_search;
-pub use proxy::{PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE};
+pub use proxy::{PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE, INCLUDE_METADATA_HEADER};
 pub use types::{
    FederatedSearch, FederatedSearchResult, Federation, FederationOptions, MergeFacets,
 };
--- a/crates/meilisearch/src/search/federated/perform.rs
+++ b/crates/meilisearch/src/search/federated/perform.rs
@@ -17,8 +17,10 @@ use meilisearch_types::milli::vector::Embedding;
 use meilisearch_types::milli::{self, DocumentId, OrderBy, TimeBudget, DEFAULT_VALUES_PER_FACET};
 use roaring::RoaringBitmap;
 use tokio::task::JoinHandle;
+use uuid::Uuid;

 use super::super::ranking_rules::{self, RankingRules};
+use super::super::SearchMetadata;
 use super::super::{
    compute_facet_distribution_stats, prepare_search, AttributesFormat, ComputedFacets, HitMaker,
    HitsInfo, RetrieveVectors, SearchHit, SearchKind, SearchQuery, SearchQueryWithIndex,
@@ -39,6 +41,8 @@ pub async fn perform_federated_search(
    federation: Federation,
    features: RoFeatures,
    is_proxy: bool,
+    request_uid: Uuid,
+    include_metadata: bool,
 ) -> Result<FederatedSearchResult, ResponseError> {
    if is_proxy {
        features.check_network("Performing a remote federated search")?;
@@ -57,14 +61,22 @@ pub async fn perform_federated_search(

    // 1. partition queries by host and index
    let mut partitioned_queries = PartitionedQueries::new();
+
+    // Store the original queries order for later metadata building
+    let original_queries = queries.clone();
+
    for (query_index, federated_query) in queries.into_iter().enumerate() {
        partitioned_queries.partition(federated_query, query_index, &network, features)?
    }

    // 2. perform queries, merge and make hits index by index
    // 2.1. start remote queries
-    let remote_search =
-        RemoteSearch::start(partitioned_queries.remote_queries_by_host, &federation, deadline);
+    let remote_search = RemoteSearch::start(
+        partitioned_queries.remote_queries_by_host.clone(),
+        &federation,
+        deadline,
+        include_metadata,
+    );

    // 2.2. concurrently execute local queries
    let params = SearchByIndexParams {
@@ -110,6 +122,56 @@ pub async fn perform_federated_search(
    let (estimated_total_hits, degraded, used_negative_operator, facets, max_remote_duration) =
        merge_metadata(&mut results_by_index, &remote_results);

+    // 3.1.1. Build metadata in the same order as the original queries
+    let query_metadata = if include_metadata {
+        let mut query_metadata = Vec::new();
+
+        // Create a map of remote results by index_uid for quick lookup
+        let mut remote_results_by_index = std::collections::BTreeMap::new();
+        for remote_result in &remote_results {
+            if let Some(remote_metadata) = &remote_result.metadata {
+                for remote_meta in remote_metadata {
+                    remote_results_by_index
+                        .insert(remote_meta.index_uid.clone(), remote_meta.clone());
+                }
+            }
+        }
+
+        // Build metadata in the same order as the original queries
+        for original_query in original_queries {
+            let query_uid = Uuid::now_v7();
+            let index_uid = original_query.index_uid.to_string();
+
+            // Determine if this is a remote query
+            let (_, _, federation_options) = original_query.into_index_query_federation();
+            let remote = federation_options.and_then(|options| options.remote);
+
+            // Get primary key for this index
+            let mut primary_key = None;
+
+            if remote.is_some() {
+                // For remote queries, try to get primary key from remote results
+                if let Some(remote_meta) = remote_results_by_index.get(&index_uid) {
+                    primary_key = remote_meta.primary_key.clone();
+                }
+            } else {
+                // For local queries, get primary key from local index
+                primary_key = index_scheduler.index(&index_uid).ok().and_then(|index| {
+                    index.read_txn().ok().and_then(|rtxn| {
+                        let pk = index.primary_key(&rtxn).ok().flatten().map(|pk| pk.to_string());
+                        drop(rtxn);
+                        pk
+                    })
+                });
+            }
+
+            query_metadata.push(SearchMetadata { query_uid, index_uid, primary_key, remote });
+        }
+        Some(query_metadata)
+    } else {
+        None
+    };
+
    // 3.2. merge hits
    let merged_hits: Vec<_> = merge_index_global_results(results_by_index, &mut remote_results)
        .skip(federation.offset)
@@ -170,6 +232,8 @@ pub async fn perform_federated_search(
        facet_stats,
        facets_by_index,
        remote_errors: partitioned_queries.has_remote.then_some(remote_errors),
+        request_uid: Some(request_uid),
+        metadata: query_metadata,
    })
 }

@@ -439,6 +503,8 @@ fn merge_metadata(
        degraded: degraded_for_host,
        used_negative_operator: host_used_negative_operator,
        remote_errors: _,
+        metadata: _,
+        request_uid: _,
    } in remote_results
    {
        let this_remote_duration = Duration::from_millis(*processing_time_ms as u64);
@@ -566,7 +632,12 @@ struct RemoteSearch {
 }

 impl RemoteSearch {
-    fn start(queries: RemoteQueriesByHost, federation: &Federation, deadline: Instant) -> Self {
+    fn start(
+        queries: RemoteQueriesByHost,
+        federation: &Federation,
+        deadline: Instant,
+        include_metadata: bool,
+    ) -> Self {
        let mut in_flight_remote_queries = BTreeMap::new();
        let client = reqwest::ClientBuilder::new()
            .connect_timeout(std::time::Duration::from_millis(200))
@@ -586,7 +657,10 @@ impl RemoteSearch {
                    // never merge distant facets
                    proxy_federation.merge_facets = None;
                    let params = params.clone();
-                    async move { proxy_search(&node, queries, proxy_federation, &params).await }
+                    async move {
+                        proxy_search(&node, queries, proxy_federation, &params, include_metadata)
+                            .await
+                    }
                }),
            );
        }
--- a/crates/meilisearch/src/search/federated/proxy.rs
+++ b/crates/meilisearch/src/search/federated/proxy.rs
@@ -11,6 +11,7 @@ use crate::search::SearchQueryWithIndex;

 pub const PROXY_SEARCH_HEADER: &str = "Meili-Proxy-Search";
 pub const PROXY_SEARCH_HEADER_VALUE: &str = "true";
+pub const INCLUDE_METADATA_HEADER: &str = "Meili-Include-Metadata";

 mod error {
    use meilisearch_types::error::ResponseError;
@@ -98,6 +99,7 @@ pub async fn proxy_search(
    queries: Vec<SearchQueryWithIndex>,
    federation: Federation,
    params: &ProxySearchParams,
+    include_metadata: bool,
 ) -> Result<FederatedSearchResult, ProxySearchError> {
    let url = format!("{}/multi-search", node.url);

@@ -114,7 +116,16 @@ pub async fn proxy_search(
    };

    for i in 0..params.try_count {
-        match try_proxy_search(&url, search_api_key, &federated, &params.client, deadline).await {
+        match try_proxy_search(
+            &url,
+            search_api_key,
+            &federated,
+            &params.client,
+            deadline,
+            include_metadata,
+        )
+        .await
+        {
            Ok(response) => return Ok(response),
            Err(retry) => {
                let duration = retry.into_duration(i)?;
@@ -122,7 +133,7 @@ pub async fn proxy_search(
            }
        }
    }
-    try_proxy_search(&url, search_api_key, &federated, &params.client, deadline)
+    try_proxy_search(&url, search_api_key, &federated, &params.client, deadline, include_metadata)
        .await
        .map_err(Retry::into_error)
 }
@@ -133,6 +144,7 @@ async fn try_proxy_search(
    federated: &FederatedSearch,
    client: &Client,
    deadline: std::time::Instant,
+    include_metadata: bool,
 ) -> Result<FederatedSearchResult, Retry> {
    let timeout = deadline.saturating_duration_since(std::time::Instant::now());

@@ -143,6 +155,8 @@ async fn try_proxy_search(
        request
    };
    let request = request.header(PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE);
+    let request =
+        if include_metadata { request.header(INCLUDE_METADATA_HEADER, "true") } else { request };

    let response = request.send().await;
    let response = match response {
--- a/crates/meilisearch/src/search/federated/types.rs
+++ b/crates/meilisearch/src/search/federated/types.rs
@@ -16,6 +16,9 @@ use meilisearch_types::milli::order_by_map::OrderByMap;
 use meilisearch_types::milli::OrderBy;
 use serde::{Deserialize, Serialize};
 use utoipa::ToSchema;
+use uuid::Uuid;
+
+use crate::search::SearchMetadata;

 use super::super::{ComputedFacets, FacetStats, HitsInfo, SearchHit, SearchQueryWithIndex};
 use crate::milli::vector::Embedding;
@@ -131,6 +134,10 @@ pub struct FederatedSearchResult {
    pub facet_stats: Option<BTreeMap<String, FacetStats>>,
    #[serde(default, skip_serializing_if = "FederatedFacets::is_empty")]
    pub facets_by_index: FederatedFacets,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub request_uid: Option<Uuid>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub metadata: Option<Vec<SearchMetadata>>,

    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub remote_errors: Option<BTreeMap<String, ResponseError>>,
@@ -156,6 +163,8 @@ impl fmt::Debug for FederatedSearchResult {
            facet_stats,
            facets_by_index,
            remote_errors,
+            request_uid,
+            metadata,
        } = self;

        let mut debug = f.debug_struct("SearchResult");
@@ -188,6 +197,12 @@ impl fmt::Debug for FederatedSearchResult {
        if let Some(remote_errors) = remote_errors {
            debug.field("remote_errors", &remote_errors);
        }
+        if let Some(request_uid) = request_uid {
+            debug.field("request_uid", &request_uid);
+        }
+        if let Some(metadata) = metadata {
+            debug.field("metadata", &metadata);
+        }

        debug.finish()
    }
--- a/crates/meilisearch/src/search/mod.rs
+++ b/crates/meilisearch/src/search/mod.rs
@@ -36,13 +36,14 @@ use serde_json::{json, Value};
 #[cfg(test)]
 mod mod_test;
 use utoipa::ToSchema;
+use uuid::Uuid;

 use crate::error::MeilisearchHttpError;

 mod federated;
 pub use federated::{
    perform_federated_search, FederatedSearch, FederatedSearchResult, Federation,
-    FederationOptions, MergeFacets, PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE,
+    FederationOptions, MergeFacets, PROXY_SEARCH_HEADER, PROXY_SEARCH_HEADER_VALUE, INCLUDE_METADATA_HEADER,
 };

 mod ranking_rules;
@@ -835,6 +836,18 @@ pub struct SearchHit {
    pub ranking_score_details: Option<serde_json::Map<String, serde_json::Value>>,
 }

+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, ToSchema)]
+#[serde(rename_all = "camelCase")]
+#[schema(rename_all = "camelCase")]
+pub struct SearchMetadata {
+    pub query_uid: Uuid,
+    pub index_uid: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub primary_key: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub remote: Option<String>,
+}
+
 #[derive(Serialize, Clone, PartialEq, ToSchema)]
 #[serde(rename_all = "camelCase")]
 #[schema(rename_all = "camelCase")]
@@ -851,6 +864,10 @@ pub struct SearchResult {
    pub facet_distribution: Option<BTreeMap<String, IndexMap<String, u64>>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub facet_stats: Option<BTreeMap<String, FacetStats>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub request_uid: Option<Uuid>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub metadata: Option<SearchMetadata>,

    #[serde(skip_serializing_if = "Option::is_none")]
    pub semantic_hit_count: Option<u32>,
@@ -872,6 +889,8 @@ impl fmt::Debug for SearchResult {
            hits_info,
            facet_distribution,
            facet_stats,
+            request_uid,
+            metadata,
            semantic_hit_count,
            degraded,
            used_negative_operator,
@@ -901,6 +920,12 @@ impl fmt::Debug for SearchResult {
        if let Some(semantic_hit_count) = semantic_hit_count {
            debug.field("semantic_hit_count", &semantic_hit_count);
        }
+        if let Some(request_uid) = request_uid {
+            debug.field("request_uid", &request_uid);
+        }
+        if let Some(metadata) = metadata {
+            debug.field("metadata", &metadata);
+        }

        debug.finish()
    }
@@ -1120,8 +1145,11 @@ pub fn perform_search(
    search_kind: SearchKind,
    retrieve_vectors: RetrieveVectors,
    features: RoFeatures,
+    request_uid: Uuid,
+    include_metadata: bool,
 ) -> Result<SearchResult, ResponseError> {
    let before_search = Instant::now();
+    let index_uid_for_metadata = index_uid.clone();
    let rtxn = index.read_txn()?;
    let time_budget = match index.search_cutoff(&rtxn)? {
        Some(cutoff) => TimeBudget::new(Duration::from_millis(cutoff)),
@@ -1142,7 +1170,20 @@ pub fn perform_search(
            query_vector,
        },
        semantic_hit_count,
-    ) = search_from_kind(index_uid, search_kind, search)?;
+    ) = search_from_kind(index_uid.clone(), search_kind, search)?;
+
+    let metadata = if include_metadata {
+        let query_uid = Uuid::now_v7();
+        let primary_key = index.primary_key(&rtxn)?.map(|pk| pk.to_string());
+        Some(SearchMetadata {
+            query_uid,
+            index_uid: index_uid_for_metadata,
+            primary_key,
+            remote: None, // Local searches don't have a remote
+        })
+    } else {
+        None
+    };

    let SearchQuery {
        q,
@@ -1225,7 +1266,6 @@ pub fn perform_search(
        .transpose()?
        .map(|ComputedFacets { distribution, stats }| (distribution, stats))
        .unzip();
-
    let result = SearchResult {
        hits: documents,
        hits_info,
@@ -1237,6 +1277,8 @@ pub fn perform_search(
        degraded,
        used_negative_operator,
        semantic_hit_count,
+        request_uid: Some(request_uid),
+        metadata,
    };
    Ok(result)
 }
--- a/crates/meilisearch/tests/documents/add_documents.rs
+++ b/crates/meilisearch/tests/documents/add_documents.rs
@@ -1852,7 +1852,7 @@ async fn add_documents_with_geo_field() {
        .await;
    snapshot!(code, @"200 OK");
    // we are expecting docs 4 and 3 first as they have geo
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }),
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }),
    @r###"
    {
      "hits": [
@@ -1884,7 +1884,8 @@ async fn add_documents_with_geo_field() {
      "processingTimeMs": "[time]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1939,7 +1940,7 @@ async fn update_documents_with_geo_field() {
    let (response, code) = index.search_post(json!({"sort": ["_geoPoint(10,0):asc"]})).await;
    snapshot!(code, @"200 OK");
    // we are expecting docs 4 and 3 first as they have geo
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }),
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }),
    @r###"
    {
      "hits": [
@@ -1971,7 +1972,8 @@ async fn update_documents_with_geo_field() {
      "processingTimeMs": "[time]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -2043,7 +2045,7 @@ async fn update_documents_with_geo_field() {
    let (response, code) = index.search_post(json!({"sort": ["_geoPoint(10,0):asc"]})).await;
    snapshot!(code, @"200 OK");
    // the search response should not have changed: we are expecting docs 4 and 3 first as they have geo
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }),
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }),
    @r###"
    {
      "hits": [
@@ -2076,7 +2078,8 @@ async fn update_documents_with_geo_field() {
      "processingTimeMs": "[time]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
    "###);
 }
--- a/crates/meilisearch/tests/search/filters.rs
+++ b/crates/meilisearch/tests/search/filters.rs
@@ -742,7 +742,7 @@ async fn vector_filter_all_embedders() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -762,9 +762,10 @@ async fn vector_filter_all_embedders() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -839,7 +840,7 @@ async fn vector_filter_specific_embedder() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -859,9 +860,10 @@ async fn vector_filter_specific_embedder() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -874,7 +876,7 @@ async fn vector_filter_user_provided() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -885,9 +887,10 @@ async fn vector_filter_user_provided() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 1
+      "estimatedTotalHits": 1,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -900,7 +903,7 @@ async fn vector_filter_specific_fragment() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -914,9 +917,10 @@ async fn vector_filter_specific_fragment() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 2
+      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);

    let (value, _code) = index
        .search_post(json!({
@@ -924,7 +928,7 @@ async fn vector_filter_specific_fragment() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -941,9 +945,10 @@ async fn vector_filter_specific_fragment() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -976,16 +981,17 @@ async fn vector_filter_document_template_but_fragments_used() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "query": "",
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 0
+      "estimatedTotalHits": 0,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -1023,7 +1029,7 @@ async fn vector_filter_document_template() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1040,9 +1046,10 @@ async fn vector_filter_document_template() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -1075,7 +1082,7 @@ async fn vector_filter_negation() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1092,9 +1099,10 @@ async fn vector_filter_negation() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -1107,7 +1115,7 @@ async fn vector_filter_or_combination() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1124,9 +1132,10 @@ async fn vector_filter_or_combination() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -1139,7 +1148,7 @@ async fn vector_filter_regenerate() {
            "attributesToRetrieve": ["name"]
        }))
        .await;
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1156,7 +1165,8 @@ async fn vector_filter_regenerate() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }
--- a/crates/meilisearch/tests/search/geo.rs
+++ b/crates/meilisearch/tests/search/geo.rs
@@ -33,7 +33,7 @@ async fn geo_bounding_box_with_string_and_number() {
            }),
            |response, code| {
                assert_eq!(code, 200, "{response}");
-                snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -63,7 +63,8 @@ async fn geo_bounding_box_with_string_and_number() {
                  "processingTimeMs": "[time]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 2
+                  "estimatedTotalHits": 2,
+                  "requestUid": "[uuid]"
                }
                "###);
            },
@@ -84,7 +85,7 @@ async fn bug_4640() {
            }),
            |response, code| {
                assert_eq!(code, 200, "{response}");
-                snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -123,7 +124,8 @@ async fn bug_4640() {
                  "processingTimeMs": "[time]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 3
+                  "estimatedTotalHits": 3,
+                  "requestUid": "[uuid]"
                }
                "###);
            },
@@ -147,7 +149,7 @@ async fn geo_asc_with_words() {
        &json!({"q": "jean"}),
        |response, code| {
            assert_eq!(code, 200, "{response}");
-            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -179,7 +181,8 @@ async fn geo_asc_with_words() {
              "processingTimeMs": "[time]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 3
+              "estimatedTotalHits": 3,
+              "requestUid": "[uuid]"
            }
            "###);
        },
@@ -192,7 +195,7 @@ async fn geo_asc_with_words() {
        &json!({"q": "bob"}),
        |response, code| {
            assert_eq!(code, 200, "{response}");
-            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -216,7 +219,8 @@ async fn geo_asc_with_words() {
              "processingTimeMs": "[time]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 2
+              "estimatedTotalHits": 2,
+              "requestUid": "[uuid]"
            }
            "###);
        },
@@ -229,7 +233,7 @@ async fn geo_asc_with_words() {
        &json!({"q": "intel"}),
        |response, code| {
            assert_eq!(code, 200, "{response}");
-            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -245,7 +249,8 @@ async fn geo_asc_with_words() {
              "processingTimeMs": "[time]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 1
+              "estimatedTotalHits": 1,
+              "requestUid": "[uuid]"
            }
            "###);
        },
@@ -269,7 +274,7 @@ async fn geo_sort_with_words() {
      &json!({"q": "jean", "sort": ["_geoPoint(0.0, 0.0):asc"]}),
      |response, code| {
          assert_eq!(code, 200, "{response}");
-          snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+          snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
          {
            "hits": [
              {
@@ -304,7 +309,8 @@ async fn geo_sort_with_words() {
            "processingTimeMs": "[time]",
            "limit": 20,
            "offset": 0,
-            "estimatedTotalHits": 3
+            "estimatedTotalHits": 3,
+            "requestUid": "[uuid]"
          }
          "###);
      },
--- a/crates/meilisearch/tests/search/hybrid.rs
+++ b/crates/meilisearch/tests/search/hybrid.rs
@@ -1,4 +1,4 @@
-use meili_snap::snapshot;
+use meili_snap::{json_string, snapshot};
 use once_cell::sync::Lazy;

 use crate::common::index::Index;
@@ -148,7 +148,7 @@ async fn simple_search() {
        )
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(response, @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -209,9 +209,10 @@ async fn simple_search() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "semanticHitCount": 0
    }
-    "#);
+    "###);
    snapshot!(response["semanticHitCount"], @"0");

    let (response, code) = index
@@ -220,7 +221,7 @@ async fn simple_search() {
        )
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(response, @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -284,9 +285,10 @@ async fn simple_search() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "semanticHitCount": 2
    }
-    "#);
+    "###);
    snapshot!(response["semanticHitCount"], @"2");

    let (response, code) = index
@@ -295,7 +297,7 @@ async fn simple_search() {
        )
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(response, @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -359,9 +361,10 @@ async fn simple_search() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "semanticHitCount": 3
    }
-    "#);
+    "###);
    snapshot!(response["semanticHitCount"], @"3");
 }

--- a/crates/meilisearch/tests/search/locales.rs
+++ b/crates/meilisearch/tests/search/locales.rs
@@ -104,7 +104,7 @@ async fn simple_search() {
    // english
    index
        .search(json!({"q": "Atta", "attributesToRetrieve": ["id"]}), |response, code| {
-            snapshot!(response, @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -115,7 +115,8 @@ async fn simple_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 1
+              "estimatedTotalHits": 1,
+              "requestUid": "[uuid]"
            }
            "###);
            snapshot!(code, @"200 OK");
@@ -125,7 +126,7 @@ async fn simple_search() {
    // japanese
    index
        .search(json!({"q": "進撃", "attributesToRetrieve": ["id"]}), |response, code| {
-            snapshot!(response, @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -136,7 +137,8 @@ async fn simple_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 1
+              "estimatedTotalHits": 1,
+              "requestUid": "[uuid]"
            }
            "###);
            snapshot!(code, @"200 OK");
@@ -147,7 +149,7 @@ async fn simple_search() {
        .search(
            json!({"q": "進撃", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r#"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -158,9 +160,10 @@ async fn simple_search() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
-                "#);
+                "###);
                snapshot!(code, @"200 OK");
            },
        )
@@ -169,7 +172,7 @@ async fn simple_search() {
    // chinese
    index
        .search(json!({"q": "进击", "attributesToRetrieve": ["id"]}), |response, code| {
-            snapshot!(response, @r#"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -180,9 +183,10 @@ async fn simple_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 1
+              "estimatedTotalHits": 1,
+              "requestUid": "[uuid]"
            }
-            "#);
+            "###);
            snapshot!(code, @"200 OK");
        })
        .await;
@@ -222,7 +226,7 @@ async fn force_locales() {
        .search(
            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -233,7 +237,8 @@ async fn force_locales() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -246,7 +251,7 @@ async fn force_locales() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -257,7 +262,8 @@ async fn force_locales() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -300,7 +306,7 @@ async fn force_locales_with_pattern() {
        .search(
            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -311,7 +317,8 @@ async fn force_locales_with_pattern() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -324,7 +331,7 @@ async fn force_locales_with_pattern() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -335,7 +342,8 @@ async fn force_locales_with_pattern() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -376,14 +384,15 @@ async fn force_locales_with_pattern_nested() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["cmn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -396,7 +405,7 @@ async fn force_locales_with_pattern_nested() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -407,7 +416,8 @@ async fn force_locales_with_pattern_nested() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -451,14 +461,15 @@ async fn force_different_locales_with_pattern() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["cmn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -471,7 +482,7 @@ async fn force_different_locales_with_pattern() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -482,7 +493,8 @@ async fn force_different_locales_with_pattern() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -529,14 +541,15 @@ async fn auto_infer_locales_at_search_with_attributes_to_search_on() {
        .search(
            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -549,7 +562,7 @@ async fn auto_infer_locales_at_search_with_attributes_to_search_on() {
            .search(
                json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"], "attributesToSearchOn": ["name_zh", "description_zh"]}),
                |response, code| {
-                    snapshot!(response, @r###"
+                    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                    {
                      "hits": [
                        {
@@ -560,7 +573,8 @@ async fn auto_infer_locales_at_search_with_attributes_to_search_on() {
                      "processingTimeMs": "[duration]",
                      "limit": 20,
                      "offset": 0,
-                      "estimatedTotalHits": 1
+                      "estimatedTotalHits": 1,
+                      "requestUid": "[uuid]"
                    }
                    "###);
                    snapshot!(code, @"200 OK");
@@ -602,7 +616,7 @@ async fn auto_infer_locales_at_search() {
        .search(
            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -613,7 +627,8 @@ async fn auto_infer_locales_at_search() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -625,30 +640,7 @@ async fn auto_infer_locales_at_search() {
        .search(
            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
-                    {
-                      "hits": [
-                        {
-                          "id": 853
-                        }
-                      ],
-                      "query": "\"进击的巨人\"",
-                      "processingTimeMs": "[duration]",
-                      "limit": 20,
-                      "offset": 0,
-                      "estimatedTotalHits": 1
-                    }
-                    "###);
-                snapshot!(code, @"200 OK");
-            },
-        )
-        .await;
-
-    index
-        .search(
-            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
-            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -659,7 +651,32 @@ async fn auto_infer_locales_at_search() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
+                }
+                "###);
+                snapshot!(code, @"200 OK");
+            },
+        )
+        .await;
+
+    index
+        .search(
+            json!({"q": "\"进击的巨人\"", "attributesToRetrieve": ["id"]}),
+            |response, code| {
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
+                {
+                  "hits": [
+                    {
+                      "id": 853
+                    }
+                  ],
+                  "query": "\"进击的巨人\"",
+                  "processingTimeMs": "[duration]",
+                  "limit": 20,
+                  "offset": 0,
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -702,14 +719,15 @@ async fn force_different_locales_with_pattern_nested() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["cmn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -722,31 +740,7 @@ async fn force_different_locales_with_pattern_nested() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
-                    {
-                      "hits": [
-                        {
-                          "id": 852
-                        }
-                      ],
-                      "query": "\"进击的巨人\"",
-                      "processingTimeMs": "[duration]",
-                      "limit": 20,
-                      "offset": 0,
-                      "estimatedTotalHits": 1
-                    }
-                    "###);
-                snapshot!(code, @"200 OK");
-            },
-        )
-        .await;
-
-    // force japanese
-    index
-        .search(
-            json!({"q": "\"进击的巨人\"", "locales": ["ja"], "attributesToRetrieve": ["id"]}),
-            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -757,7 +751,33 @@ async fn force_different_locales_with_pattern_nested() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 1
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
+                }
+                "###);
+                snapshot!(code, @"200 OK");
+            },
+        )
+        .await;
+
+    // force japanese
+    index
+        .search(
+            json!({"q": "\"进击的巨人\"", "locales": ["ja"], "attributesToRetrieve": ["id"]}),
+            |response, code| {
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
+                {
+                  "hits": [
+                    {
+                      "id": 852
+                    }
+                  ],
+                  "query": "\"进击的巨人\"",
+                  "processingTimeMs": "[duration]",
+                  "limit": 20,
+                  "offset": 0,
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -799,14 +819,15 @@ async fn settings_change() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["cmn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -819,14 +840,15 @@ async fn settings_change() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -862,14 +884,15 @@ async fn settings_change() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["cmn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -882,14 +905,15 @@ async fn settings_change() {
        .search(
            json!({"q": "\"进击的巨人\"", "locales": ["jpn"], "attributesToRetrieve": ["id"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [],
                  "query": "\"进击的巨人\"",
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 0
+                  "estimatedTotalHits": 0,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -1164,7 +1188,7 @@ async fn swedish_search() {
    // infer swedish
    index
        .search(json!({"q": "trä", "attributesToRetrieve": ["product"]}), |response, code| {
-            snapshot!(response, @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -1178,7 +1202,8 @@ async fn swedish_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 2
+              "estimatedTotalHits": 2,
+              "requestUid": "[uuid]"
            }
            "###);
            snapshot!(code, @"200 OK");
@@ -1187,7 +1212,7 @@ async fn swedish_search() {

    index
        .search(json!({"q": "tra", "attributesToRetrieve": ["product"]}), |response, code| {
-            snapshot!(response, @r###"
+            snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -1201,7 +1226,8 @@ async fn swedish_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 2
+              "estimatedTotalHits": 2,
+              "requestUid": "[uuid]"
            }
            "###);
            snapshot!(code, @"200 OK");
@@ -1213,7 +1239,7 @@ async fn swedish_search() {
        .search(
            json!({"q": "trä", "locales": ["swe"], "attributesToRetrieve": ["product"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -1227,7 +1253,8 @@ async fn swedish_search() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 2
+                  "estimatedTotalHits": 2,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -1238,7 +1265,7 @@ async fn swedish_search() {
        .search(
            json!({"q": "tra", "locales": ["swe"], "attributesToRetrieve": ["product"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -1252,7 +1279,8 @@ async fn swedish_search() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 2
+                  "estimatedTotalHits": 2,
+                  "requestUid": "[uuid]"
                }
                "###);
                snapshot!(code, @"200 OK");
@@ -1287,20 +1315,21 @@ async fn german_search() {
        .search(
            json!({"q": "kulturalität", "attributesToRetrieve": ["product"]}),
            |response, code| {
-                snapshot!(response, @r###"
-            {
-              "hits": [
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
-                  "product": "Interkulturalität"
+                  "hits": [
+                    {
+                      "product": "Interkulturalität"
+                    }
+                  ],
+                  "query": "kulturalität",
+                  "processingTimeMs": "[duration]",
+                  "limit": 20,
+                  "offset": 0,
+                  "estimatedTotalHits": 1,
+                  "requestUid": "[uuid]"
                }
-              ],
-              "query": "kulturalität",
-              "processingTimeMs": "[duration]",
-              "limit": 20,
-              "offset": 0,
-              "estimatedTotalHits": 1
-            }
-            "###);
+                "###);
                snapshot!(code, @"200 OK");
            },
        )
@@ -1310,7 +1339,7 @@ async fn german_search() {
        .search(
            json!({"q": "organisation", "attributesToRetrieve": ["product"]}),
            |response, code| {
-                snapshot!(response, @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
            {
              "hits": [
                {
@@ -1321,7 +1350,8 @@ async fn german_search() {
              "processingTimeMs": "[duration]",
              "limit": 20,
              "offset": 0,
-              "estimatedTotalHits": 1
+              "estimatedTotalHits": 1,
+              "requestUid": "[uuid]"
            }
            "###);
                snapshot!(code, @"200 OK");
--- a/crates/meilisearch/tests/search/mod.rs
+++ b/crates/meilisearch/tests/search/mod.rs
@@ -1044,7 +1044,7 @@ async fn test_degraded_score_details() {
            }),
            |response, code| {
                snapshot!(code, @"200 OK");
-                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+                snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
                {
                  "hits": [
                    {
@@ -1103,7 +1103,8 @@ async fn test_degraded_score_details() {
                  "processingTimeMs": "[duration]",
                  "limit": 20,
                  "offset": 0,
-                  "estimatedTotalHits": 3
+                  "estimatedTotalHits": 3,
+                  "requestUid": "[uuid]"
                }
                "###);
            },
--- a/crates/meilisearch/tests/search/multi/mod.rs
+++ b/crates/meilisearch/tests/search/multi/mod.rs
@@ -93,13 +93,14 @@ async fn federation_empty_list() {

    let (response, code) = server.multi_search(json!({"federation": {}, "queries": []})).await;
    snapshot!(code, @"200 OK");
-    snapshot!(response, @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 0
+      "estimatedTotalHits": 0,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -164,7 +165,7 @@ async fn simple_search_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response["results"], { ".**.processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response["results"], { ".**.processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    [
      {
        "indexUid": "SHARED_DOCUMENTS",
@@ -182,7 +183,8 @@ async fn simple_search_single_index() {
        "processingTimeMs": "[duration]",
        "limit": 20,
        "offset": 0,
-        "estimatedTotalHits": 1
+        "estimatedTotalHits": 1,
+        "requestUid": "[uuid]"
      },
      {
        "indexUid": "SHARED_DOCUMENTS",
@@ -200,7 +202,8 @@ async fn simple_search_single_index() {
        "processingTimeMs": "[duration]",
        "limit": 20,
        "offset": 0,
-        "estimatedTotalHits": 1
+        "estimatedTotalHits": 1,
+        "requestUid": "[uuid]"
      }
    ]
    "###);
@@ -217,7 +220,7 @@ async fn federation_single_search_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -237,7 +240,8 @@ async fn federation_single_search_single_index() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 1
+      "estimatedTotalHits": 1,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -256,7 +260,7 @@ async fn federation_multiple_search_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -308,7 +312,8 @@ async fn federation_multiple_search_single_index() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 5
+      "estimatedTotalHits": 5,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -325,7 +330,7 @@ async fn federation_two_search_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -358,7 +363,8 @@ async fn federation_two_search_single_index() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 2
+      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -457,7 +463,7 @@ async fn simple_search_two_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response["results"], { ".**.processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response["results"], { ".**.processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    [
      {
        "indexUid": "SHARED_DOCUMENTS",
@@ -475,7 +481,8 @@ async fn simple_search_two_indexes() {
        "processingTimeMs": "[duration]",
        "limit": 20,
        "offset": 0,
-        "estimatedTotalHits": 1
+        "estimatedTotalHits": 1,
+        "requestUid": "[uuid]"
      },
      {
        "indexUid": "SHARED_NESTED_DOCUMENTS",
@@ -516,7 +523,8 @@ async fn simple_search_two_indexes() {
        "processingTimeMs": "[duration]",
        "limit": 20,
        "offset": 0,
-        "estimatedTotalHits": 2
+        "estimatedTotalHits": 2,
+        "requestUid": "[uuid]"
      }
    ]
    "###);
@@ -535,7 +543,7 @@ async fn federation_two_search_two_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -596,7 +604,8 @@ async fn federation_two_search_two_indexes() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -626,7 +635,7 @@ async fn federation_multiple_search_multiple_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -795,7 +804,8 @@ async fn federation_multiple_search_multiple_indexes() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 12
+      "estimatedTotalHits": 12,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1101,7 +1111,7 @@ async fn federation_filter() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(response, @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1140,7 +1150,8 @@ async fn federation_filter() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1177,7 +1188,7 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1266,7 +1277,8 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -1278,7 +1290,7 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1353,7 +1365,8 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1449,7 +1462,7 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1538,7 +1551,8 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 4
+      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -1551,7 +1565,7 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1626,7 +1640,8 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1704,7 +1719,7 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1831,7 +1846,8 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 10
+      "estimatedTotalHits": 10,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -1844,7 +1860,7 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1915,7 +1931,8 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 6
+      "estimatedTotalHits": 6,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -1936,7 +1953,7 @@ async fn federation_sort_different_ranking_rules() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2063,7 +2080,8 @@ async fn federation_sort_different_ranking_rules() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 10
+      "estimatedTotalHits": 10,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -2142,7 +2160,7 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2269,7 +2287,8 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 10
+      "estimatedTotalHits": 10,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -2282,7 +2301,7 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2353,7 +2372,8 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 6
+      "estimatedTotalHits": 6,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -2424,7 +2444,7 @@ async fn federation_limit_offset() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -2527,7 +2547,8 @@ async fn federation_limit_offset() {
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 0,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2549,7 +2570,7 @@ async fn federation_limit_offset() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -2564,7 +2585,8 @@ async fn federation_limit_offset() {
          "processingTimeMs": "[duration]",
          "limit": 1,
          "offset": 0,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2586,7 +2608,7 @@ async fn federation_limit_offset() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -2673,7 +2695,8 @@ async fn federation_limit_offset() {
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 2,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2695,13 +2718,14 @@ async fn federation_limit_offset() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [],
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 12,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2731,7 +2755,7 @@ async fn federation_formatting() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -2861,7 +2885,8 @@ async fn federation_formatting() {
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 0,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2883,7 +2908,7 @@ async fn federation_formatting() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -2898,7 +2923,8 @@ async fn federation_formatting() {
          "processingTimeMs": "[duration]",
          "limit": 1,
          "offset": 0,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -2920,7 +2946,7 @@ async fn federation_formatting() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [
            {
@@ -3007,7 +3033,8 @@ async fn federation_formatting() {
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 2,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -3029,13 +3056,14 @@ async fn federation_formatting() {
            ]}))
            .await;
        snapshot!(code, @"200 OK");
-        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+        snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
        {
          "hits": [],
          "processingTimeMs": "[duration]",
          "limit": 20,
          "offset": 12,
-          "estimatedTotalHits": 12
+          "estimatedTotalHits": 12,
+          "requestUid": "[uuid]"
        }
        "###);
    }
@@ -3098,7 +3126,7 @@ async fn federation_null_weight() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3137,7 +3165,8 @@ async fn federation_null_weight() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -3244,7 +3273,7 @@ async fn federation_federated_contains_facets() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3280,7 +3309,8 @@ async fn federation_federated_contains_facets() {
      "processingTimeMs": "[duration]",
      "limit": 20,
      "offset": 0,
-      "estimatedTotalHits": 3
+      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -3488,7 +3518,7 @@ async fn federation_vector_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3532,7 +3562,8 @@ async fn federation_vector_single_index() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 4,
-      "semanticHitCount": 4
+      "semanticHitCount": 4,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -3545,7 +3576,7 @@ async fn federation_vector_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3589,7 +3620,8 @@ async fn federation_vector_single_index() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 4,
-      "semanticHitCount": 4
+      "semanticHitCount": 4,
+      "requestUid": "[uuid]"
    }
    "###);

@@ -3603,7 +3635,7 @@ async fn federation_vector_single_index() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3651,7 +3683,8 @@ async fn federation_vector_single_index() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 4,
-      "semanticHitCount": 3
+      "semanticHitCount": 3,
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -3703,7 +3736,7 @@ async fn federation_vector_two_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -3922,9 +3955,10 @@ async fn federation_vector_two_indexes() {
          0.6
        ]
      },
-      "semanticHitCount": 6
+      "semanticHitCount": 6,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);

    // hybrid search, distinct embedder
    let (response, code) = server
@@ -3934,7 +3968,7 @@ async fn federation_vector_two_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".**._rankingScore" => "[score]", ".**.requestUid" => "[uuid]" }), @r#"
    {
      "hits": [
        {
@@ -4161,7 +4195,8 @@ async fn federation_vector_two_indexes() {
          0.6
        ]
      },
-      "semanticHitCount": 8
+      "semanticHitCount": 8,
+      "requestUid": "[uuid]"
    }
    "#);
 }
@@ -4209,7 +4244,7 @@ async fn federation_facets_different_indexes_same_facet() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4380,7 +4415,8 @@ async fn federation_facets_different_indexes_same_facet() {
          },
          "stats": {}
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);

@@ -4399,7 +4435,7 @@ async fn federation_facets_different_indexes_same_facet() {
    ]}))
    .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4541,7 +4577,8 @@ async fn federation_facets_different_indexes_same_facet() {
          "Shazam!": 1
        }
      },
-      "facetStats": {}
+      "facetStats": {},
+      "requestUid": "[uuid]"
    }
    "###);

@@ -4561,7 +4598,7 @@ async fn federation_facets_different_indexes_same_facet() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4686,7 +4723,8 @@ async fn federation_facets_different_indexes_same_facet() {
          "distribution": {},
          "stats": {}
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -4748,7 +4786,7 @@ async fn federation_facets_same_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4806,7 +4844,8 @@ async fn federation_facets_same_indexes() {
            }
          }
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);

@@ -4822,7 +4861,7 @@ async fn federation_facets_same_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4908,7 +4947,8 @@ async fn federation_facets_same_indexes() {
            }
          }
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);

@@ -4925,7 +4965,7 @@ async fn federation_facets_same_indexes() {
        ]}))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -4987,7 +5027,8 @@ async fn federation_facets_same_indexes() {
          "min": 2.0,
          "max": 6.0
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);
 }
@@ -5040,7 +5081,7 @@ async fn federation_inconsistent_merge_order() {
      ]}))
      .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -5217,7 +5258,8 @@ async fn federation_inconsistent_merge_order() {
          },
          "stats": {}
        }
-      }
+      },
+      "requestUid": "[uuid]"
    }
    "###);

@@ -5264,7 +5306,7 @@ async fn federation_inconsistent_merge_order() {
 ]}))
 .await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -5404,7 +5446,8 @@ async fn federation_inconsistent_merge_order() {
          "Batman Returns": 1
        }
      },
-      "facetStats": {}
+      "facetStats": {},
+      "requestUid": "[uuid]"
    }
    "###);
 }
--- a/crates/meilisearch/tests/search/multi/proxy.rs
+++ b/crates/meilisearch/tests/search/multi/proxy.rs
@@ -230,7 +230,7 @@ async fn remote_sharding() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -288,12 +288,13 @@ async fn remote_sharding() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 5,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
    let (response, _status_code) = ms1.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -351,12 +352,13 @@ async fn remote_sharding() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 5,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
    let (response, _status_code) = ms2.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -414,6 +416,7 @@ async fn remote_sharding() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 5,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
@@ -595,7 +598,7 @@ async fn remote_sharding_retrieve_vectors() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "processingTimeMs": "[time]",
@@ -620,9 +623,10 @@ async fn remote_sharding_retrieve_vectors() {
        ]
      },
      "semanticHitCount": 0,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
-    "#);
+    "###);

    // multi vector search: two local queries, one remote

@@ -670,7 +674,7 @@ async fn remote_sharding_retrieve_vectors() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r#"
    {
      "hits": [],
      "processingTimeMs": "[time]",
@@ -695,6 +699,7 @@ async fn remote_sharding_retrieve_vectors() {
        ]
      },
      "semanticHitCount": 0,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "#);
@@ -745,7 +750,7 @@ async fn remote_sharding_retrieve_vectors() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r#"
    {
      "hits": [],
      "processingTimeMs": "[time]",
@@ -770,6 +775,7 @@ async fn remote_sharding_retrieve_vectors() {
        ]
      },
      "semanticHitCount": 0,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "#);
@@ -820,7 +826,7 @@ async fn remote_sharding_retrieve_vectors() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "processingTimeMs": "[time]",
@@ -840,9 +846,10 @@ async fn remote_sharding_retrieve_vectors() {
        ]
      },
      "semanticHitCount": 0,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
-    "#);
+    "###);

    // multi vector search: no local queries, all remote

@@ -890,7 +897,7 @@ async fn remote_sharding_retrieve_vectors() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r#"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "processingTimeMs": "[time]",
@@ -914,9 +921,10 @@ async fn remote_sharding_retrieve_vectors() {
          0.2
        ]
      },
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -1134,7 +1142,7 @@ async fn error_no_weighted_score() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1162,6 +1170,7 @@ async fn error_no_weighted_score() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote hit does not contain `._federation.weightedScoreValues`\n  - hint: check that the remote instance is a Meilisearch instance running the same version",
@@ -1273,7 +1282,7 @@ async fn error_bad_response() {
    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");

-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1301,6 +1310,7 @@ async fn error_bad_response() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "could not parse response from the remote host as a federated search response:\n  - response from remote: <html>Returning an HTML page</html>\n  - hint: check that the remote instance is a Meilisearch instance running the same version",
@@ -1405,7 +1415,7 @@ async fn error_bad_request() {
    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");

-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1433,6 +1443,7 @@ async fn error_bad_request() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote host responded with code 400:\n  - response from remote: {\"message\":\"Inside `.queries[1]`: Index `nottest` not found.\",\"code\":\"index_not_found\",\"type\":\"invalid_request\",\"link\":\"https://docs.meilisearch.com/errors#index_not_found\"}\n  - hint: check that the remote instance has the correct index configuration for that request\n  - hint: check that the `network` experimental feature is enabled on the remote instance",
@@ -1542,7 +1553,7 @@ async fn error_bad_request_facets_by_index() {
    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");

-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1576,6 +1587,7 @@ async fn error_bad_request_facets_by_index() {
          "stats": {}
        }
      },
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote host responded with code 400:\n  - response from remote: {\"message\":\"Inside `.federation.facetsByIndex.test0`: Index `test0` not found.\\n - Note: index `test0` is not used in queries\",\"code\":\"index_not_found\",\"type\":\"invalid_request\",\"link\":\"https://docs.meilisearch.com/errors#index_not_found\"}\n  - hint: check that the remote instance has the correct index configuration for that request\n  - hint: check that the `network` experimental feature is enabled on the remote instance",
@@ -1688,7 +1700,7 @@ async fn error_bad_request_facets_by_index_facet() {
    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");

-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -1727,6 +1739,7 @@ async fn error_bad_request_facets_by_index_facet() {
          "stats": {}
        }
      },
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote host responded with code 400:\n  - response from remote: {\"message\":\"Inside `.federation.facetsByIndex.test`: Invalid facet distribution: Attribute `id` is not filterable. This index does not have configured filterable attributes.\\n - Note: index `test` used in `.queries[1]`\",\"code\":\"invalid_multi_search_facets\",\"type\":\"invalid_request\",\"link\":\"https://docs.meilisearch.com/errors#invalid_multi_search_facets\"}\n  - hint: check that the remote instance has the correct index configuration for that request\n  - hint: check that the `network` experimental feature is enabled on the remote instance",
@@ -2036,7 +2049,7 @@ async fn error_remote_404() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2064,6 +2077,7 @@ async fn error_remote_404() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote host responded with code 404:\n  - response from remote: null\n  - hint: check that the remote instance has the correct index configuration for that request\n  - hint: check that the `network` experimental feature is enabled on the remote instance",
@@ -2076,7 +2090,7 @@ async fn error_remote_404() {
    "###);
    let (response, _status_code) = ms1.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2114,6 +2128,7 @@ async fn error_remote_404() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
@@ -2245,7 +2260,7 @@ async fn error_remote_sharding_auth() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2273,6 +2288,7 @@ async fn error_remote_sharding_auth() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1-notsearch": {
          "message": "could not authenticate against the remote host\n  - hint: check that the remote instance was registered with a valid API key having the `search` action",
@@ -2406,7 +2422,7 @@ async fn remote_sharding_auth() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2454,6 +2470,7 @@ async fn remote_sharding_auth() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
@@ -2556,7 +2573,7 @@ async fn error_remote_500() {

    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2584,6 +2601,7 @@ async fn error_remote_500() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 2,
+      "requestUid": "[uuid]",
      "remoteErrors": {
        "ms1": {
          "message": "remote host responded with code 500:\n  - response from remote: {\"error\":\"provoked error\",\"code\":\"test_error\",\"link\":\"https://docs.meilisearch.com/errors#test_error\"}",
@@ -2597,7 +2615,7 @@ async fn error_remote_500() {
    let (response, _status_code) = ms1.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
    // the response if full because we queried the instance that works
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2635,6 +2653,7 @@ async fn error_remote_500() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
@@ -2738,7 +2757,7 @@ async fn error_remote_500_once() {
    // Meilisearch is tolerant to a single failure
    let (response, _status_code) = ms0.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2776,12 +2795,13 @@ async fn error_remote_500_once() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
    let (response, _status_code) = ms1.multi_search(request.clone()).await;
    snapshot!(code, @"200 OK");
-    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]" }), @r###"
+    snapshot!(json_string!(response, { ".processingTimeMs" => "[time]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -2819,6 +2839,7 @@ async fn error_remote_500_once() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 3,
+      "requestUid": "[uuid]",
      "remoteErrors": {}
    }
    "###);
--- a/crates/meilisearch/tests/search/pagination.rs
+++ b/crates/meilisearch/tests/search/pagination.rs
@@ -174,7 +174,8 @@ async fn test_issue_5274() {

    snapshot!(json_string!(rep, {
        ".processingTimeMs" => "[ignored]",
-    }), @r#"
+        ".requestUid" => "[uuid]"
+    }), @r###"
    {
      "hits": [
        {
@@ -188,7 +189,8 @@ async fn test_issue_5274() {
      "hitsPerPage": 1,
      "page": 1,
      "totalPages": 1,
-      "totalHits": 1
+      "totalHits": 1,
+      "requestUid": "[uuid]"
    }
-    "#);
+    "###);
 }
--- a/crates/meilisearch/tests/upgrade/v1_12/snapshots/v1_12_0.rs/check_the_index_features/search_with_sort_and_filter.snap
+++ b/crates/meilisearch/tests/upgrade/v1_12/snapshots/v1_12_0.rs/check_the_index_features/search_with_sort_and_filter.snap
@@ -1,6 +1,5 @@
 ---
 source: crates/meilisearch/tests/upgrade/v1_12/v1_12_0.rs
-snapshot_kind: text
 ---
 {
  "hits": [
@@ -21,5 +20,6 @@ snapshot_kind: text
  "processingTimeMs": "[duration]",
  "limit": 20,
  "offset": 0,
-  "estimatedTotalHits": 1
+  "estimatedTotalHits": 1,
+  "requestUid": "[uuid]"
 }
--- a/crates/meilisearch/tests/upgrade/v1_12/v1_12_0.rs
+++ b/crates/meilisearch/tests/upgrade/v1_12/v1_12_0.rs
@@ -294,7 +294,7 @@ async fn check_the_index_features(server: &Server) {

    let (results, _status) =
        kefir.search_post(json!({ "sort": ["age:asc"], "filter": "surname = kefirounet" })).await;
-    snapshot!(results, name: "search_with_sort_and_filter");
+    snapshot!(json_string!(results, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), name: "search_with_sort_and_filter");

    // ensuring we can get the vectors and their `regenerate` is still good.
    let (results, _status) = kefir.search_post(json!({"retrieveVectors": true})).await;
--- a/crates/meilisearch/tests/vector/binary_quantized.rs
+++ b/crates/meilisearch/tests/vector/binary_quantized.rs
@@ -323,7 +323,7 @@ async fn binary_quantize_clear_documents() {
    // Make sure the vector DB has been cleared
    let (documents, _code) =
        index.search_post(json!({ "hybrid": { "embedder": "manual" }, "vector": [1, 1, 1] })).await;
-    snapshot!(documents, @r#"
+    snapshot!(json_string!(documents, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "query": "",
@@ -331,9 +331,10 @@ async fn binary_quantize_clear_documents() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 0,
+      "requestUid": "[uuid]",
      "semanticHitCount": 0
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
--- a/crates/meilisearch/tests/vector/fragments.rs
+++ b/crates/meilisearch/tests/vector/fragments.rs
@@ -257,7 +257,7 @@ async fn search_with_vector() {
        json!({"vector": [1.0, 1.0, 1.0], "hybrid": {"semanticRatio": 1.0, "embedder": "rest"}, "limit": 1}
    )).await;
    snapshot!(code, @"200 OK");
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".requestUid" => "[uuid]", ".processingTimeMs" => "[duration]" }), @r###"
    {
      "hits": [
        {
@@ -270,9 +270,10 @@ async fn search_with_vector() {
      "limit": 1,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -288,7 +289,7 @@ async fn search_with_media() {
        ))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".requestUid" => "[uuid]", ".processingTimeMs" => "[duration]" }), @r###"
    {
      "hits": [
        {
@@ -302,9 +303,10 @@ async fn search_with_media() {
      "limit": 1,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -390,7 +392,7 @@ async fn search_with_query() {
        ))
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".requestUid" => "[uuid]", ".processingTimeMs" => "[duration]" }), @r###"
    {
      "hits": [
        {
@@ -404,9 +406,10 @@ async fn search_with_query() {
      "limit": 1,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -2076,7 +2079,7 @@ async fn composite() {
        json!({"vector": [1.0, 1.0, 1.0], "hybrid": {"semanticRatio": 1.0, "embedder": "rest"}, "limit": 1}
    )).await;
    snapshot!(code, @"200 OK");
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".requestUid" => "[uuid]", ".processingTimeMs" => "[duration]" }), @r###"
    {
      "hits": [
        {
@@ -2089,9 +2092,10 @@ async fn composite() {
      "limit": 1,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
-    "#);
+    "###);

    let (value, code) = index
        .search_post(
@@ -2100,7 +2104,7 @@ async fn composite() {
        )
        .await;
    snapshot!(code, @"200 OK");
-    snapshot!(value, @r#"
+    snapshot!(json_string!(value, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r#"
    {
      "hits": [
        {
@@ -2114,6 +2118,7 @@ async fn composite() {
      "limit": 1,
      "offset": 0,
      "estimatedTotalHits": 4,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
    "#);
--- a/crates/meilisearch/tests/vector/mod.rs
+++ b/crates/meilisearch/tests/vector/mod.rs
@@ -689,7 +689,7 @@ async fn clear_documents() {
    // Make sure the vector DB has been cleared
    let (documents, _code) =
        index.search_post(json!({ "vector": [1, 1, 1], "hybrid": {"embedder": "manual"} })).await;
-    snapshot!(documents, @r#"
+    snapshot!(json_string!(documents, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [],
      "query": "",
@@ -697,9 +697,10 @@ async fn clear_documents() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 0,
+      "requestUid": "[uuid]",
      "semanticHitCount": 0
    }
-    "#);
+    "###);
 }

 #[actix_rt::test]
@@ -743,7 +744,7 @@ async fn add_remove_one_vector_4588() {
            json!({"vector": [1, 1, 1], "hybrid": {"semanticRatio": 1.0, "embedder": "manual"} }),
        )
        .await;
-    snapshot!(documents, @r#"
+    snapshot!(json_string!(documents, { ".processingTimeMs" => "[duration]", ".requestUid" => "[uuid]" }), @r###"
    {
      "hits": [
        {
@@ -756,9 +757,10 @@ async fn add_remove_one_vector_4588() {
      "limit": 20,
      "offset": 0,
      "estimatedTotalHits": 1,
+      "requestUid": "[uuid]",
      "semanticHitCount": 1
    }
-    "#);
+    "###);

    let (documents, _code) = index
        .get_all_documents(GetAllDocumentsOptions { retrieve_vectors: true, ..Default::default() })
Author	SHA1	Message	Date
ManyTheFish	ad804b60fc	Add header-based metadata opt-in for search responses - Add Meili-Include-Metadata header constant - Modify perform_search to conditionally include metadata based on header - Modify perform_federated_search to conditionally include metadata based on header - Update all search routes to check for header and pass include_metadata parameter - Forward Meili-Include-Metadata header to remote requests for federated search - Ensure remote queries include primaryKey metadata when header is present	2025-10-02 11:04:19 +02:00
ManyTheFish	9fddbff916	WIP: Add metadata field with queryUid, indexUid, primaryKey, and remote - Add SearchMetadata struct with queryUid, indexUid, primaryKey, and remote fields - Update SearchResult to include metadata field - Update FederatedSearchResult to include metadata array - Refactor federated search metadata building to maintain query order - Support primary key extraction from both local and remote results - Add remote field to identify remote instance for federated queries - Ensure metadata array matches query order in federated search Features: - queryUid: UUID v7 for each query - indexUid: Index identifier - primaryKey: Primary key field name (null if not available) - remote: Remote instance name (null for local queries) This provides complete traceability for search operations across local and remote instances.	2025-10-01 17:55:15 +02:00
ManyTheFish	7fe2b0a177	feat: add indexUid to SearchMetadata - Add indexUid field to SearchMetadata struct - Update perform_search to include indexUid in metadata - Update federated search to include indexUid for each query The metadata field now contains both queryUid and indexUid: - For /search: single object with queryUid and indexUid - For /multi-search: each result has metadata with both fields - For federated search: array of objects, each with queryUid and indexUid	2025-09-30 17:34:29 +02:00
ManyTheFish	060562d156	feat: add metadata field with queryUid to search responses - Add SearchMetadata struct with queryUid field (UUID v7) - Add metadata field to SearchResult for /search route - Add metadata field to FederatedSearchResult for /multi-search route - Update perform_search to generate queryUid and set metadata - Update federated search to generate queryUid for each query - Update multi-search non-federated path to include metadata - Fix pattern matching in analytics and other code The metadata field contains: - For /search: single object with queryUid - For /multi-search: array of objects, one per query - For federated search: array of objects, one per query All queryUid values are generated using Uuid::now_v7() for time-ordered uniqueness.	2025-09-30 15:22:35 +02:00
ManyTheFish	44fdc8b350	Add uuid v7 feature	2025-09-23 11:44:14 +02:00
ManyTheFish	a1a7643554	fix tests	2025-09-23 11:44:14 +02:00
ManyTheFish	1d78637872	Add requestUid field in search response and add debug logs with requestUid	2025-09-23 11:44:14 +02:00