Initial

app/modules/main/controller.py

@@ -0,0 +1,3 @@
+class MainController:
+    def index(self):
+        return {'message':'Hello, World!'}

app/modules/main/main_tests.py

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+import unittest
+import json
+
+from app.modules.main.controller import MainController
+
+
+def test_index():
+    main_controller = MainController()
+    result = main_controller.index()
+    assert result == {'message': 'Hello, World!'}

app/modules/main/route.py

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+from flask import Blueprint, make_response, jsonify
+from .controller import MainController
+
+main_bp = Blueprint('main', __name__)
+
+main_controller = MainController()
+
+@main_bp.route('/')
+def index():
+    result=main_controller.index()
+    return make_response(jsonify(data=result))