from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/')
def home():
    return "Hello, World!"

@app.route('/greet/<name>', methods=['GET'])
def greet(name):
    return jsonify(message=f"Hello, {name}!")

@app.route('/post_example', methods=['POST'])
def post_example():
    data = request.json
    return jsonify(data)

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=3000)