Question

the user_logo file is actually a img data ,

how can I save this img to a django model ?

Answer 1

Looks like the 'user_logo' is a JPEG file encoded in base16/hex (except the prefix '<')

>>> 'ffd8ffe000104a4649460001010100'.decode('hex')
'\xff\xd8\xff\xe0\x00\x10JFIF\x00\x01\x01\x01\x00'

You could use ContentFile to store this sort of data

obj.image.save(filename, ContentFile(the_decoded_content))

Also, better to ask the dude implementing client-side whether he could post in multipart/form-data, if so the user_logo could be easily accessed through request.FILES…and less request body