# Include this location in the server block for 101.43.139.56.
# Preserve /file/access and the token query when forwarding.
location /file/ {
    proxy_pass http://127.0.0.1:8080;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    # File tokens are temporary credentials; omit query strings from access logs.
    access_log off;
}