使用Flask中的RequestParser验证浮点参数是否在范围内

from flask import Flask
from flask_restful import Api, Resource, reqparse

app = Flask(__name__)
api = Api(app)

class MyResource(Resource):
    def __init__(self):
        self.parser = reqparse.RequestParser()
        self.parser.add_argument('param', type=float, required=True, help='param must be a float')

    def get(self):
        args = self.parser.parse_args()
        param = args['param']
        
        if param < 0.0 or param > 1.0:
            return {'error': 'param must be between 0.0 and 1.0'}, 400
        
        # 其他业务逻辑处理
        
        return {'message': 'success'}

api.add_resource(MyResource, '/my-resource')

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