Generate pre-signed s3 bucket post url

GenerateAwsS3Signature.py

import boto3
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView

class GenerateAwsSignature(APIView):
    """Generate an AWS signature for presigned POST requests.

    This signed data allows file uploads directly from the browser to S3.

    """

    def post(self, request):
        """

        * API to be consumed by fine uploader to upload images directly to s3 bucket.

   
        """

        s3 = boto3.client(
            's3',
            aws_access_key_id='xxxxxxxxxxxxxxx',
            aws_secret_access_key='xxxxxxxxxxxxxx')
        # http://boto3.readthedocs.io/en/latest/reference/services/s3.html#S3.Client.generate_presigned_post
        try:
            data = s3.generate_presigned_post(
                'fineuploader-demo',
                '${filename}',
                Conditions=request.data['conditions'],
                ExpiresIn=60 * 60,
            )
        except KeyError:
            return Response(zo_diageo_response.generate_failure_response(
                custom_error_codes.INVALID_DATA_1204),
                status=status.HTTP_400_BAD_REQUEST)

        return Response({'policy': data['fields']['policy'],
                         'signature': data['fields']['signature'],
                         'url': data['url']},
                        status=status.HTTP_200_OK)