Returning CSV format from django-rest-framework?

Question

I have a working Django 1.8 site, and I want to add a RESTful API using django-rest-framework. I would like to support rendering to CSV and JSON formats, and am puzzling over ho

Answer 1

I think that a StreamingHttpResponse should be the preferred way. With django-storages and ViewSet it looks more or less like this.

    @action(detail=True, methods=["get"])
    def download(self, request, pk=None):
        f = self.get_object()
        response = StreamingHttpResponse(
            streaming_content=f.file.chunks(), content_type="text/csv"
        )
        response[
            "Content-Disposition"
        ] = f'attachment; filename="{f.name}.csv"'
        response.status_code = status.HTTP_200_OK
        return response

Also, FileResponse is basically a StreamingHttpResponse with some headers etc so both are great for this use case.