Create app.py

app.py

@@ -0,0 +1,15 @@
+from flask import Flask, jsonify, request
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    name = request.args.get('name', '')
+    if name:
+        message = f'Hello, {name}!'
+    else:
+        message = 'Hello!'
+    return jsonify(message=message)
+
+if __name__ == '__main__':
+    app.run()