improve responses

app/__init__.py

@@ -2,7 +2,7 @@ from flask import Flask
 from flask_cors import CORS
 from app.config import Config
 from app.routes import auth_bp, autocall_bp
-from app.errors import method_not_allowed, unsupported_media_type
+from app.response import (method_not_allowed, unsupported_media_type, not_found, bad_request)
 from app.extensions import db
 
 
@@ -23,6 +23,8 @@ def create_app():
     # Error Handlers
     app.register_error_handler(405, method_not_allowed)
     app.register_error_handler(415, unsupported_media_type)
+    app.register_error_handler(404, not_found)
+    app.register_error_handler(400, bad_request)
 
     # Database
     db.init_app(app)

app/errors/__init__.py

@@ -1 +0,0 @@
-from .handlers import method_not_allowed, unsupported_media_type

app/response/__init__.py

@@ -0,0 +1,2 @@
+from .handlers import (method_not_allowed, unsupported_media_type,
+not_found, bad_request, success, created, updated)

app/response/handlers.py

@@ -16,3 +16,15 @@ def bad_request(error):
 
 def unsupported_media_type(error):
     return ResponseHelper.error(message="Unsupported Media Type", status_code=415)
+
+
+def success(data):
+    return ResponseHelper.success(data=data)
+
+
+def created(data):
+    return ResponseHelper.created(data=data)
+
+
+def updated(data):
+    return ResponseHelper.updated(data=data)