Update: Not working

backend/responses.py

@@ -0,0 +1,31 @@
+from flask import current_app as app
+import json
+
+
+def send_error(status_code, message):
+    data_json = {
+        'status': 'error',
+        'message': message
+    }
+    res = app.response_class(
+        response=json.dumps(data_json, sort_keys=True),
+        status=status_code,
+        mimetype='application/json'
+    )
+    res.headers['Access-Control-Allow-Origin'] = '*'
+    return res
+
+
+def send_message(message, data):
+    data_json = {
+        'status': 'success',
+        'message': message,
+        'data': data
+    }
+    res = app.response_class(
+        response=json.dumps(data_json, sort_keys=True),
+        status=200,
+        mimetype='application/json'
+    )
+    res.headers['Access-Control-Allow-Origin'] = '*'
+    return res