flask deprecated_route

deprecated_route.py

# deprecated_route.py

registered_deprecated_routes = set()
register_deprecated_routes = True


def is_deprecated(route):
    return route in registered_deprecated_routes


def register(app, rule, **options):

    def decorator(f):
        if register_deprecated_routes:
            registered_deprecated_routes.add(rule)
            endpoint = options.pop('endpoint', None)
            app.add_url_rule(rule, endpoint, f, **options)

        return f

    return decorator



# app.py

from flask import Flask, jsonify, Blueprint
import deprecated_route

api = Blueprint('api', __name__)

deprecated_route.register_deprecated_routes = True


@deprecated_route.register(api, '/f1')
@api.route('/v1/f1')
def f1():
    return jsonify(f='f1')


@deprecated_route.register(api, '/f2/<a1>/<a2>', methods=['POST'])
@api.route('/v1/f2/<a1>/<a2>', methods=['POST'])
def f2(a1, a2):
    return jsonify(f='f2', a1=a1, a2=a2)


@api.route('/f3/<a1>', methods=['GET', 'POST'])
@api.route('/v1/f3/<a1>', methods=['GET', 'POST'])
def f3(a1):
    return jsonify(f='f3', a1=a1)


if __name__ == '__main__':
    app = Flask(__name__)
    app.register_blueprint(api)

    routes = [rule.rule for rule in app.url_map.iter_rules()]
    for r in sorted(routes):
        print('{}: {}'.format(deprecated_route.is_deprecated(r), r))

    app.run()