For signing direct to S3 file uploads with Django Rest Framework

SignS3RequestAPIView.py

import os, boto3
from botocore.client import Config

from django.conf import settings

from rest_framework import parsers
from rest_framework.permissions import IsAuthenticated
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework.renderers import JSONRenderer
        
AWS_BUCKET_NAME = settings.AWS_BUCKET_NAME

class SignS3RequestView(APIView):
    permission_classes = (IsAuthenticated,)
    parser_classes = (
        parsers.FormParser,
        parsers.MultiPartParser,
        parsers.JSONParser,
    )
    renderer_classes = (JSONRenderer,)

    def get(self, request):
    	file_name = request.query_params.get('file-name')
    	file_type = request.query_params.get('file-type')

    	s3 = boto3.client('s3', config=Config(signature_version='s3v4'))

    	presigned_post = s3.generate_presigned_post(
            Bucket = AWS_BUCKET_NAME,
            Key = file_name,
            Fields = {"acl": "public-read", "Content-Type": file_type},
            Conditions = [
                {"acl": "public-read"},
                {"Content-Type": file_type}
            ],
            ExpiresIn = 3600
    	)

    	return Response({
    		'data': presigned_post,
    		'url': 'https://s3.amazonaws.com/%s/%s' % (AWS_BUCKET_NAME, file_name)
    	})