Index UID generation makes sure to not generate the same number

meilidb-http/src/routes/index.rs

@@ -146,10 +146,15 @@ pub async fn create_index(mut ctx: Context<Data>) -> SResult<Response> {
         .await
         .map_err(ResponseError::bad_request)?;
 
-    let generated_uid = generate_uid();
-
     let db = &ctx.state().db;
 
+    let generated_uid = loop {
+        let uid = generate_uid();
+        if db.open_index(&uid).is_none() {
+            break uid;
+        }
+    };
+
     let created_index = match db.create_index(&generated_uid) {
         Ok(index) => index,
         Err(e) => return Err(ResponseError::create_index(e)),