restful.Resource that only has text/html representation? about flask-restful HOT 5 CLOSED

If the return object of a resource method (get() or post()) is not a Response object, Flask-RESTful calls make_response() on that object. make_response() basically only responds with a mediatype from [request.accept_mimetypes, api.default_mediatype] which in your case wouldn't return text/html unless the request had an accept header that included text/html or you had assigned text/html to api.default_mediatype.

So, the fix is to make sure you return a Response object from your resource method so Flask-RESTful doesn't try to create its own.

It sounds like you'd want to do this:

def output_html(data, code, headers=None):
    resp = Response(format_data(data), mimetype='text/html', headers=headers)
    resp.status_code = code
    return resp

class Foo(restful.Resource):
    def get(self):
        return output_html(some_python_object, 200)

from flask-restful.

I could do the following:

def output_html(data, code, headers=None):
    resp = Response(format_data(data), mimetype='text/html', headers=headers)
    resp.status_code = code
    return resp

class Foo(restful.Resource):
    def get(self):
        return some_python_object
    representations = {'text/html': output_html, 'application/json': output_html}

Problem is that flask-restful doesn't obey mimetype parameter I specified in Response. It still responds with Content-Type: application/json, not Content-Type: text/html.

from flask-restful.

The response here was wrong. Hold on while I fix it.

from flask-restful.

Ah, that works beautifully. I was gonna override dispatch_request. But returning Response is better.

class Foo(restful.Resource):
    def get(self):
        resp = Response('hello', mimetype='text/html')
        return resp

from flask-restful.

@dougblack @saml this was really helpful -- thanks for posting this so many years ago :)

from flask-restful.