问题描述
我有Flask API都使用手机作为可选的url参数,如下所示,我想用一个装饰器来验证电话号码是否正确。
所以我可以得到参数手机的地方没有解析请求的网址?
$ p $ @ user_api.route(/< phone> / login)
@check_phone
def login(phone):
f = OrderedDict()
f ['error'] = 0
return jsonify(f)
@ user_api.route / $ lt; phone> / logout)
@check_phone
def logout(phone):
f = OrderedDict()
f ['error'] = 0
return jsonify(f)
< int:id>
)。 从werkzeug.routing导入BaseConverter,ValidationError
$ b $ class PhoneConverter(BaseConverter):
regex = r'\d {7,10}'#这个验证值的基本形式
$ b $ def to_python(self,value):
#做更复杂的验证
如果不是复杂的电话号码(值):
raise ValidationError('not a valid phone number')
返回值
app.url_map.converters ['phone'] = PhoneConverter
@ app.route('/< phone:phone> ;')
def get_phone(phone):
#phone is valid
您还可以使用 before_request
函数来验证所有路由与电话argum而不必装饰它们。
来自瓶子导入请求,中止
@ app.before_request
def valid_phone():
如果'phone'不在request.view_args:
返回#view没有电话arg
如果不是复杂的电话号码验证(request.view_args [ 'phone']):
abort(404)
@ app.route('/< phone>')
def get_phone(phone):
#电话有效
@ app.route('/< other>)
def get_other(其他):
#无电话参数,不验证
如果您真的想使用装饰器,参数。
from functools import wrapps
def check_phone(f):
@wraps (f)
def内部(** kwargs):
phone = kwargs ['phone']
#做一些验证
返回f(** kwargs)
返回内部
@ app.route('/ < phone>')
@check_phone
def get_phone(phone):
#phone is valid
I have Flask APIs all use phone as optional url parameters as showed below, and I want to use a decorator to verify if the phone number is correct.So can I get the parameter "phone" somewhere without parsing the request url?
@user_api.route("/<phone>/login")
@check_phone
def login(phone):
f = OrderedDict()
f['error'] = 0
return jsonify(f)
@user_api.route("/<phone>/logout")
@check_phone
def logout(phone):
f = OrderedDict()
f['error'] = 0
return jsonify(f)
There is a better mechanism to validate url values built in to Werkzeug (and Flask). Define a converter and use it like you would use any other converter in the route (for example, <int:id>
).
from werkzeug.routing import BaseConverter, ValidationError
class PhoneConverter(BaseConverter):
regex = r'\d{7,10}' # this validates the basic form of the value
def to_python(self, value):
# do more complicated validation
if not complicated_phone_validation(value):
raise ValidationError('not a valid phone number')
return value
app.url_map.converters['phone'] = PhoneConverter
@app.route('/<phone:phone>')
def get_phone(phone):
# phone is valid
You can also use a before_request
function to validate all routes with a phone argument without having to decorate them all.
from flask import request, abort
@app.before_request
def valid_phone():
if 'phone' not in request.view_args:
return # view has no phone arg
if not complicated_phone_validation(request.view_args['phone']):
abort(404)
@app.route('/<phone>')
def get_phone(phone):
# phone is valid
@app.route('/<other>')
def get_other(other):
# no phone arg, no validation
If you really want to use a decorator, a decorated function gets called with arguments.
from functools import wraps
def check_phone(f):
@wraps(f)
def inner(**kwargs):
phone = kwargs['phone']
# do some validation
return f(**kwargs)
return inner
@app.route('/<phone>')
@check_phone
def get_phone(phone):
# phone is valid
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