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

For me, using Python 3.6, Django 3.0, and DRF 3.10, The problem came from using the wrong type of response. I needed to use a django.http.HttpResponse, as seen below:

from django.http import HttpResponse
...
with open('file.csv', 'r') as file:
    response = HttpResponse(file, content_type='text/csv')
    response['Content-Disposition'] = 'attachment; filename=file.csv'
    return response