map $http_x_request_id $req_id {
    default $http_x_request_id;
    "" $request_id;
}

server {
    #listen 4444 http2;
    listen 4444 default_server;
    listen [::]:4444 default_server;

    server_name _;

    location / {
        proxy_pass http://localhost:7860;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 86400;
        proxy_redirect off;
    }

    location /server/ {
        proxy_set_header x-request-id $req_id;
        proxy_pass http://localhost:7777;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 86400;
        proxy_send_timeout 86400;
        proxy_redirect off;
    }
}