How to return generated file download with Django REST Framework?

Question

I need to return generated file download as a Django REST Framework response. I tried the following:

def retrieve(self, request, *args, **kwargs):
    template =         


        

Answer 1

I am using DRF and i found a view code to download file, which would be like

from rest_framework import generics
from django.http import HttpResponse
from wsgiref.util import FileWrapper

class FileDownloadListAPIView(generics.ListAPIView):

    def get(self, request, id, format=None):
        queryset = Example.objects.get(id=id)
        file_handle = queryset.file.path
        document = open(file_handle, 'rb')
        response = HttpResponse(FileWrapper(document), content_type='application/msword')
        response['Content-Disposition'] = 'attachment; filename="%s"' % queryset.file.name
        return response

and url.py will be

path('download//',FileDownloadListAPIView.as_view())

I am using React.js in frontend and i get a response like

handleDownload(id, filename) {
  fetch(`http://127.0.0.1:8000/example/download/${id}/`).then(
    response => {
      response.blob().then(blob => {
      let url = window.URL.createObjectURL(blob);
      let a = document.createElement("a");
      console.log(url);
      a.href = url;
      a.download = filename;
      a.click();
    });
  });
}

and after i got successful in downloading a file which also opens correctly and i hope this gonna work. Thanks