Python Flask 自定义转换器验证参数

import typing as t

from flask import Flask
from werkzeug.routing import BaseConverter

app = Flask(__name__)


class RegexConverter(BaseConverter):
    def __init__(self, url_map, items):
        super(RegexConverter, self).__init__(url_map)
        self.regex = items

    def to_python(self, value: str) -> t.Any:
        print("to python called")
        return value


app.url_map.converters['re'] = RegexConverter


@app.route('/<re("1234"):value>', methods=['GET', "POST"])
def index(value):
    return f'<h1>hello{value} world</h1>'


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

如果访问

符合的正则才有数据，否则就没有数据

比如定义手机号正则就可以

@app.route('/<re("1\d{10}"):value>', methods=['GET', "POST"])
def index(value):
    return f'<h1>hello{value} world</h1>'

不符合规则就不行