From a0a4ac66ec6172defd594c41a9aa758c14e2cfcc Mon Sep 17 00:00:00 2001
From: Kerollmops <clement@meilisearch.com>
Date: Tue, 10 Jun 2025 16:48:28 +0200
Subject: [PATCH] Better document the done streamed event

---
 crates/meilisearch/src/routes/chats/utils.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crates/meilisearch/src/routes/chats/utils.rs b/crates/meilisearch/src/routes/chats/utils.rs
index ee3a1bf27..752eb10e6 100644
--- a/crates/meilisearch/src/routes/chats/utils.rs
+++ b/crates/meilisearch/src/routes/chats/utils.rs
@@ -197,7 +197,10 @@ impl SseEventSender {
     }
 
     pub async fn stop(self) -> Result<(), SendError<Event>> {
-        self.0.send(Event::Data(sse::Data::new("[DONE]"))).await
+        // It is the way OpenAI sends a correct end of stream
+        // <https://platform.openai.com/docs/api-reference/assistants-streaming/events>
+        const DONE_DATA: &str = "[DONE]";
+        self.0.send(Event::Data(sse::Data::new(DONE_DATA))).await
     }
 
     async fn send_json<S: Serialize>(&self, data: &S) -> Result<(), SendError<Event>> {