I know I'm late to the party, but found this post while trying to achieve
the same thing. We've found a simpler way, taking advantage of the fact
that Response subclasses WebOb which (since 2012) has a 'json' kwarg
(aliased to 'json_body'). So we can do this, short-n-sweet:
@view_config(route_name='jsonplain', renderer='json', request_method='GET')
def jsonplain(request):
return HTTPOk(json={'message': 'Could not process entity'})
On Monday, March 31, 2014 at 11:41:03 AM UTC-4, Tres Seaver wrote:
>
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> On 03/31/2014 05:11 AM, Chung WONG wrote:
> > For example, there is a view returns a http exception to a request:
> > @view_config(route_name='route', renderer='json',
> > request_method='GET') def view(request): * return
> > HTTPUnprocessableEntity(detail='details', comment='comment',
> > body_template='body_template')*
> >
> > it returned a full html page *<html>* *<head>* *<title>422
> > Unprocessable Entity</title>* *</head>* *<body>* *<h1>422
> > Unprocessable Entity</h1>** body_template* *</body>* *</html>* is it
> > possible to make the return as a JSON so that the frontend can extract
> > the error message easily?
>
> When you return a response object, pyramid bypasses the renderer. In your
> case, you would need something like::
>
> import json
>
> @view_config(route_name='route', renderer='json',
> request_method='GET')
> def view(request):
> error = {'message': 'Could not process entity'}
> return HTTPUnprocessableEntity(
> body=json.dumps(error),
> content_type='application/json')
>
>
> Tres.
> - --
> ===================================================================
> Tres Seaver +1 540-429-0999 [email protected]
> <javascript:>
> Palladion Software "Excellence by Design" http://palladion.com
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