At model.py change this
avatar = models.ImageField(upload_to='avatar', blank=True, null=True)
On Saturday, July 24, 2021 at 2:39:31 PM UTC+3 manohiso...@gmail.com wrote:
>
> Hello everyone
> A few days ago I made a school project which consists in doing chat or
> almost mini social network, I use as backend django rest framework because
> it is easy and fast for development, and I use as front-end Kivy client. But
> I encountered a problem that I can't solve it, obviously I searched
> everything on the web but it gives me the same result, here is my code:
> models.py:
> class Profile(models.Model):
> #user = models.OneToOneField(User)
> name = models.CharField(max_length=20)
> avatar = models.ImageField(upload_to='avatar', blank=True)
> def __str__(self):
> return self.name
>
> serializers.py:
> class Base64ImageField(serializers.ImageField):
>
> def to_internal_value(self, data):
>
>
> if isinstance(data, six.string_types):
> if 'data:' in data and ';base64,' in data:
> header, data = data.split(';base64,')
>
> try:
> decoded_file = base64.b64decode(data)
> except TypeError:
> self.fail('invalid_image')
>
> file_name = str(uuid.uuid4())[:12] # 12 characters are more
> than enough.
> file_extension = self.get_file_extension(file_name,
> decoded_file)
> complete_file_name = "%s.%s" % (file_name, file_extension, )
> data = ContentFile(decoded_file, name=complete_file_name)
>
> return super(Base64ImageField, self).to_internal_value(data)
>
> def get_file_extension(self, file_name, decoded_file):
>
>
> extension = imghdr.what(file_name, decoded_file)
> extension = "jpg" if extension == "jpeg" else extension
>
> return extension
>
>
> class ProfileSerializer(serializers.ModelSerializer):
> avatar = Base64ImageField(max_length=None, use_url=True)
>
> class Meta:
> model = Profile
> fields = ('id','name','avatar',)
>
> views.py:
> class ProfileViewSet(viewsets.ModelViewSet):
> queryset = Profile.objects.all()
> serializer_class = ProfileSerializer
> parser_classes = (MultiPartParser, JSONParser)
>
> And in my front-end client:
> def create_user(self, *args):
> username = self.sm.get_screen('signin_screen').ids.username.text
> password = self.sm.get_screen('signin_screen').ids.sign_pass1.text
> email = self.sm.get_screen('signin_screen').ids.email.text
> image = self.path
> with open(self.path, "rb") as img_file:
> my_string = base64.b64encode(img_file.read())
> print()
> img = my_string.decode('utf-8')
>
> params = json.dumps({'name': username, 'avatar': img})
> headers = {'Content-type': 'application/json',
> 'Accept': 'application/json'}
> req = UrlRequest('http://127.0.0.1:8000/api/profile/',
> method='POST', on_success=self.user_created,
> on_failure=self.user_login_error, req_body=params,
> req_headers=headers,
> ca_file=cfi.where(),verify=True, on_error=self.error, debug=True)
>
> If I execute this code it returns me:
> Bad Request: /api/profile/
> [24/Jul/2021 11:32:49] "POST /api/profile/ HTTP/1.1" 400 418
>
> Please how can resolve this error?
>
> thank you very much
>
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