Flask 学习-82.Flask-RESTX使用reqparse 解析器校验枚举类型choices 参数

前言

reqparse.RequestParser() 解析器可以校验枚举类型，在add_argument中使用choices参数

choices 设置参数可选值

比如性别设置可选项：男、女

    def post(self):
        # 校验入参
        parser = reqparse.RequestParser()
        parser.add_argument('username', required=True, type=str,  nullable=False, help='username is required')
        parser.add_argument('password', required=True, type=str,  nullable=False, help='password is required')
        parser.add_argument('sex', choices=["男", "女"],  type=str, help='sex invalid')
        args = parser.parse_args()

        print(f'请求入参：{args}')

请求示例，sex不是可选项的时候会报400

POST http://127.0.0.1:5000/api/v1/register HTTP/1.1
User-Agent: Fiddler
Host: 127.0.0.1:5000
Content-Type: application/json
Content-Length: 73

{
    "username": "test",
    "password" : "111111",
    "sex": "x"
}


HTTP/1.0 400 BAD REQUEST
Content-Type: application/json
Content-Length: 152
Server: Werkzeug/2.0.1 Python/3.8.5
Date: Sun, 04 Sep 2022 12:26:41 GMT

{
    "errors": {
        "sex": "sex invalid The value 'x' is not a valid choice for 'sex'."
    },
    "message": "Input payload validation failed"
}