Fix the /swap-indexes route API

1. payload
2. error messages
3. auth errors

meilisearch-types/src/error.rs

@@ -120,6 +120,8 @@ pub enum Code {
     InvalidIndexUid,
     InvalidMinWordLengthForTypo,
 
+    DuplicateIndexFound,
+
     // invalid state error
     InvalidState,
     MissingPrimaryKey,
@@ -298,6 +300,9 @@ impl Code {
             InvalidMinWordLengthForTypo => {
                 ErrCode::invalid("invalid_min_word_length_for_typo", StatusCode::BAD_REQUEST)
             }
+            DuplicateIndexFound => {
+                ErrCode::invalid("duplicate_index_found", StatusCode::BAD_REQUEST)
+            }
         }
     }
 

meilisearch-types/src/keys.rs

@@ -270,6 +270,7 @@ impl Action {
             INDEXES_GET => Some(Self::IndexesGet),
             INDEXES_UPDATE => Some(Self::IndexesUpdate),
             INDEXES_DELETE => Some(Self::IndexesDelete),
+            INDEXES_SWAP => Some(Self::IndexesSwap),
             TASKS_ALL => Some(Self::TasksAll),
             TASKS_CANCEL => Some(Self::TasksCancel),
             TASKS_DELETE => Some(Self::TasksDelete),