HTTP状态400错误请求

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/api', methods=['POST'])
def api():
    data = request.get_json()
    if not data or 'name' not in data:
        return jsonify({'error': 'Missing required parameter: name'}), 400
    return jsonify({'message': 'Success'}), 200

if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/api', methods=['POST'])
def api():
    if request.headers.get('Content-Type') != 'application/json':
        return jsonify({'error': 'Unsupported Content-Type'}), 400
    data = request.get_json()
    return jsonify({'message': 'Success'}), 200

if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, request, jsonify
from jsonschema import validate, ValidationError

app = Flask(__name__)

schema = {
    "type": "object",
    "properties": {
        "name": {"type": "string"},
        "age": {"type": "integer", "minimum": 0}
    },
    "required": ["name", "age"]
}

@app.route('/api', methods=['POST'])
def api():
    data = request.get_json()
    try:
        validate(instance=data, schema=schema)
    except ValidationError as e:
        return jsonify({'error': str(e)}), 400
    return jsonify({'message': 'Success'}), 200

if __name__ == '__main__':
    app.run(debug=True)