Question

128

How to redirect from a JSON response?

rated 0 times [ 129] [ 1] / answers: 1 / hits: 6007 / 10 Years ago, sat, march 8, 2014, 12:00:00

So I am trying to use Flask and a Javascript uploader(Dropzone) to upload files and redirect after the upload is complete. Files are getting uploaded fine, but using the traditional redirect in flask:

return (redirect (http://somesite.com))

Does nothing, page does not change. I think this is because of this: The request headers of the files being sent are set to Accept:application/json, and the response headers are being sent in <text/html; charset=utf-8 How can I return a json response and then redirect from it? Just doing

 return (redirect (jsonify(http://somesite.com)))

gives an error:

ValueError: dictionary update sequence element #0 has length 1; 2 is required

I know browsers won't redirect from Json headers anyway. How can I send the url to redirect to from Flask back to my JS app clientside and redirect from there?
I already tested this with a normal HTML form to submit the files and it worked perfectly so I'm pretty sure it is the JSON issue. Thank you.

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answered 10 Years ago anitadevonm · Accepted Answer

You can set the mimetype for the response:

response = redirect('http://somesite.com')

response.mimetype = 'application/json'



return response

Or:

return make_response(redirect('http://example.com'), mimetype='application/json')