```
        location /
    {
          #头信息
          proxy_set_header Host $host;
          proxy_set_header X-Forwarded-Host $host;
          proxy_set_header X-Forwarded-Server $host;
          proxy_set_header X-Forwarded-Scheme  $scheme;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header Remote_Addr $remote_addr;
          proxy_set_header Upgrade $http_upgrade;
          proxy_set_header Connection "upgrade";

          #代理转发
          proxy_pass http://127.0.0.1:3001/;
    }
```