TrafaretValidator
Install:
pip install trafaret_validator
This is a wrapper that validate params using Trafaret ( http://trafaret.readthedocs.org/en/latest/ ).
Usage:
import trafaret as t
from trafaret_validator import TrafaretValidator
def foo_validator(value):
if value != 'foo':
return t.DataError('Expected foo!')
return 'foo'
class RequestValidator(TrafaretValidator):
ids = t.List(t.Int)
payload = t.Dict(foo=t.Call(foo_validator))
validator = RequestValidator(ids=ids, payload=payload)
if not validator.validate():
return validator.errors
request_params = {'ids' ids, 'payload': payload}
validator = RequestValidator()
if not validator.validate_params(request_params):
return validator.errors
data = validator.data # returns checked dict of params {'ids': [...], 'payload': {'foo': 'foo'}}
ids = validator.ids
payload = validator.payload
