Return empty array for empty requests

server.py

@@ -47,7 +47,7 @@ app.wsgi_app = ProxyFix(
 )
 
 def get_real_ip():
-    return request.environ.get('HTTP_X_FORWARDED_FOR', request.remote_addr)
+    return request.remote_addr
 
 @app.route("/", methods=["GET"])
 def index():
@@ -110,27 +110,30 @@ def chromadb_query():
     )
 
     n_results = min(collection.count(), n_results)
-    query_result = collection.query(
-        query_texts=[data["query"]],
-        n_results=n_results,
-    )
 
-    documents = query_result["documents"][0]
-    ids = query_result["ids"][0]
-    metadatas = query_result["metadatas"][0]
-    distances = query_result["distances"][0]
-
-    messages = [
-        {
-            "id": ids[i],
-            "date": metadatas[i]["date"],
-            "role": metadatas[i]["role"],
-            "meta": metadatas[i]["meta"],
-            "content": documents[i],
-            "distance": distances[i],
-        }
-        for i in range(len(ids))
-    ]
+    messages = []
+    if n_results > 0:
+        query_result = collection.query(
+            query_texts=[data["query"]],
+            n_results=n_results,
+        )
+    
+        documents = query_result["documents"][0]
+        ids = query_result["ids"][0]
+        metadatas = query_result["metadatas"][0]
+        distances = query_result["distances"][0]
+    
+        messages = [
+            {
+                "id": ids[i],
+                "date": metadatas[i]["date"],
+                "role": metadatas[i]["role"],
+                "meta": metadatas[i]["meta"],
+                "content": documents[i],
+                "distance": distances[i],
+            }
+            for i in range(len(ids))
+        ]
 
     return jsonify(messages)