Django ModelSerializer with ImageFIeld and HTTPS

Question

I have a model News with an image and those News can be loaded via an JSON REST API. The server is signed with a certificate from an Authority and all request must be done with https.

My problem is, the ModelSerializer serialize the ImageField with http and not https. How do I change that ?

Here is an abstract of code and output example:

#myProject/models.py
class News(models.Model):
    image = models.ImageField()

#myProject/serializers.py
class NewsSerializer(serializers.ModelSerializer):
    class Meta:
        model = News
        fields = ('image')

#request for a news
https://myDomain/news/the-news-id-here/

#current output
{
    "image": "http://myDomain/media/news/imageName.jpg"
}

#wanted output
{
    "image": "https://myDomain/media/news/imageName.jpg"
}

Thanks David

Answer 1

Please consider adding proxy_set_header X-Forwarded-Proto https; inside of your Nginx virtual host file i.e conf file located within /etc/nginx/sites-available/. So, in a nutshell, your conf file may look like this:

server {
    listen   443 ssl;
    server_name example.com www.example.com;
    root /var/www/html/static_files/;

    client_max_body_size 4G;
    proxy_pass_header Server;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Proto https;
    proxy_redirect off;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Scheme $scheme;
    access_log /home/user/API/logs/nginx-access.log;
    error_log /home/user/API/logs/nginx-error.log;

    location /api/ {
        proxy_pass http://127.0.0.1:8000/api/;
    }

    location /media/ {
        proxy_pass http://127.0.0.1:8000/media/;
    }

    # Error pages
    # error_page 500 502 503 504 /home/user/API/500.html;
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
}

In conclusion, after adding proxy_set_header X-Forwarded-Proto https;. Your REST API will be redirected to https. Credit to dukeboy for his comment.