ADD file via upload

app.py

@@ -0,0 +1,29 @@
+# backend/app.py
+from flask import Flask, request, jsonify
+
+from flask_cors import *
+
+app = Flask(__name__)
+CORS(app, supports_credentials=True)
+
+todos = []
+
+@app.route("/")
+def hello():
+    return "Hello, World!"
+@app.route("/todos", methods=["GET"])
+def get_todos():
+    return jsonify(todos)
+@app.route("/todos", methods=["POST"])
+def add_todo():
+    todo = request.json
+    todos.append(todo)
+    return jsonify(todo), 201
+@app.route("/todos/<int:index>", methods=["DELETE"])
+def delete_todo(index):
+    if index < len(todos):
+        deleted_todo = todos.pop(index)
+        return jsonify(deleted_todo)
+    return "", 404
+if __name__ == "__main__":
+    app.run(debug=True)