On 11/14/2017 09:25 AM, [email protected]
wrote:
> I have a pyramid application. How can I change the content_type to
> problem+json (as defined in: https://tools.ietf.org/html/rfc7807#page-9)
Interesting -- thanks for pointing that out! I'd never come across that
RFC before.
> My code looks like this:
> from pyramid.httpexceptions import HTTPNotFound
> def error_handler(self, message):
> response = HTTPNotFound()
> response.body = dumps({'message': message})
> response.content_type = 'application/json'
> raise response
>
> Changing the content_type to application/problem+json doesn't work.
'HTTPExecption.prepare'[1] is overriding that content type based on the
'Accept:' header detection. Making that method aware of possible extension
types seems like a reasonable choice: the fastest way to get that in place
would be a pull request with tests.
In the meanwhile, ISTM that you'll either need to monkey-patch
'HTTPResponse.prepare' or else stop using exception types which derive from
'HTTPException'. E.g.:
from pyramid.response import Response
class ProblemResponse(Response, Exception):
pass
def error_handler(self, message):
raise ProblemResponse(
body=dumps({'message': message},
status='404 Not Found',
content_type = 'application/problem+json',
)
[1]https://github.com/Pylons/pyramid/blob/cc6a6ed60260b0391aa38f372b26311d58edf0d6/pyramid/httpexceptions.py#L248-L316
Tres.
--
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Tres Seaver +1 540-429-0999 [email protected]
Palladion Software "Excellence by Design" http://palladion.com
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