Feat: Alter flask to Quart for async API serving. (#11275)

### What problem does this PR solve?

#11277

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/apps/conversation_app.py

@@ -17,8 +17,8 @@ import json
 import re
 import logging
 from copy import deepcopy
-from flask import Response, request
-from flask_login import current_user, login_required
+from quart import Response, request
+from api.apps import current_user, login_required
 from api.db.db_models import APIToken
 from api.db.services.conversation_service import ConversationService, structure_answer
 from api.db.services.dialog_service import DialogService, ask, chat, gen_mindmap
@@ -34,8 +34,8 @@ from common.constants import RetCode, LLMType
 
 @manager.route("/set", methods=["POST"])  # noqa: F821
 @login_required
-def set_conversation():
-    req = request.json
+async def set_conversation():
+    req = await request.json
     conv_id = req.get("conversation_id")
     is_new = req.get("is_new")
     name = req.get("name", "New conversation")
@@ -128,8 +128,9 @@ def getsse(dialog_id):
 
 @manager.route("/rm", methods=["POST"])  # noqa: F821
 @login_required
-def rm():
-    conv_ids = request.json["conversation_ids"]
+async def rm():
+    req = await request.json
+    conv_ids = req["conversation_ids"]
     try:
         for cid in conv_ids:
             exist, conv = ConversationService.get_by_id(cid)
@@ -165,8 +166,8 @@ def list_conversation():
 @manager.route("/completion", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("conversation_id", "messages")
-def completion():
-    req = request.json
+async def completion():
+    req = await request.json
     msg = []
     for m in req["messages"]:
         if m["role"] == "system":
@@ -250,8 +251,8 @@ def completion():
 
 @manager.route("/tts", methods=["POST"])  # noqa: F821
 @login_required
-def tts():
-    req = request.json
+async def tts():
+    req = await request.json
     text = req["text"]
 
     tenants = TenantService.get_info_by(current_user.id)
@@ -283,8 +284,8 @@ def tts():
 @manager.route("/delete_msg", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("conversation_id", "message_id")
-def delete_msg():
-    req = request.json
+async def delete_msg():
+    req = await request.json
     e, conv = ConversationService.get_by_id(req["conversation_id"])
     if not e:
         return get_data_error_result(message="Conversation not found!")
@@ -306,8 +307,8 @@ def delete_msg():
 @manager.route("/thumbup", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("conversation_id", "message_id")
-def thumbup():
-    req = request.json
+async def thumbup():
+    req = await request.json
     e, conv = ConversationService.get_by_id(req["conversation_id"])
     if not e:
         return get_data_error_result(message="Conversation not found!")
@@ -333,8 +334,8 @@ def thumbup():
 @manager.route("/ask", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("question", "kb_ids")
-def ask_about():
-    req = request.json
+async def ask_about():
+    req = await request.json
     uid = current_user.id
 
     search_id = req.get("search_id", "")
@@ -365,8 +366,8 @@ def ask_about():
 @manager.route("/mindmap", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("question", "kb_ids")
-def mindmap():
-    req = request.json
+async def mindmap():
+    req = await request.json
     search_id = req.get("search_id", "")
     search_app = SearchService.get_detail(search_id) if search_id else {}
     search_config = search_app.get("search_config", {}) if search_app else {}
@@ -383,8 +384,8 @@ def mindmap():
 @manager.route("/related_questions", methods=["POST"])  # noqa: F821
 @login_required
 @validate_request("question")
-def related_questions():
-    req = request.json
+async def related_questions():
+    req = await request.json
 
     search_id = req.get("search_id", "")
     search_config = {}