fix

main.py

@@ -26,6 +26,7 @@ app = Flask(__name__)
 url = os.getenv("FRONTEND_URL_WITH_PORT")
 cors = CORS(app, resources={r"/api/predict": {"origins": url},
                             r"/api/feedback": {"origins": url},
+                            r"/api/dm": {"origins": url},
                             r"/health": {"origins": "*"}
                            })
 
@@ -37,6 +38,7 @@ conn = psycopg2.connect(
 
 cur = conn.cursor()
 
+dm = None
 
 def vre_fetch():
     while True:
@@ -57,6 +59,11 @@ def user_interest_decay():
 def health():
     return "Success", 200
 
+@app.route("/api/dm", methods=['GET'])
+def init_dm():
+    dm = DM()
+    return "Sucess", 200
+
 @app.route("/api/predict", methods=['POST'])
 def predict():
     text = request.get_json().get("message")
@@ -155,8 +162,6 @@ if __name__ == "__main__":
     threading.Thread(target=user_interest_decay, name='decayinterest').start()
 
     rec = Recommender(retriever)
-    
-    dm = DM()
 
     rg = ResponseGenerator(index,db, rec, generators, retriever)