Nginx site configuration for: SPA website and Node.js proxy pass

nginx.conf

server {
  listen 80;
  listen [::]:80;
  server_name example.com;

  root /var/www/html;
  index index.html;

  location /backend/ {
    rewrite ^/backend/(.*) /$1 break;
    proxy_pass http://localhost:8000; # Define the address you will forward
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
    # Log
    access_log /your/custom/logs/path/access.log;
    error_log /your/custom/logs/path/error.log;
  }

  location / {
    try_files $uri $uri/ /index.html;
    access_log /your/custom/logs/path/access.log;
    error_log /your/custom/logs/path/error.log;
  }
}

# Example file path for this file: /etc/nginx/sites-available/example.com
# Don't forget to run this command: sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/