add get_close_matches

app.py

 from flask import Flask
 from flask_socketio import SocketIO, send
+from database import QAPair
+from difflib import get_close_matches
 import time
 import threading
 
@@ -9,10 +11,19 @@ socketio = SocketIO(app, cors_allowed_origins='*')
 
 waiting_time = 10
 last_msg = time.time() + 12
+question = QAPair.query.with_entities(QAPair.question).all()
+questions = [a.question for a in question]
 
 @socketio.on('message')
 def handleMessage(msg):
-    send("message received : " + msg, broadcast=False) #will be replaced with QA matching function
+    
+    q = get_close_matches(msg, questions)
+    # send(q, broadcast=False)
+    if q:
+        ans = QAPair.query.filter_by(question = q[0]).first().answer
+        send(ans, broadcast=False)
+    else:
+        send("sorry, I don't understand the question", broadcast = False)
     global last_msg
     last_msg = time.time()
 

front.html

@@ -9,10 +9,6 @@
         $(document).ready(function() {
             var socket = io.connect('http://127.0.0.1:5000');
 
-            socket.on('connect', function() {
-                socket.send('connected');
-            });
-
             socket.on('message', function(msg) {
                 $("#messages").append('<li>'+msg+'</li>')
             });