server {
    listen       80;

    location / {
        root   /usr/share/nginx/html;
        index  index.html;
        try_files $uri $uri/ /index.html;
    }

    location /api/ {
        proxy_pass http://backend:3000;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location /api-docs/ {
        proxy_pass http://backend:3000;
    }

    location /socket.io/ {
        proxy_pass http://backend:3000;
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
    }
}