Is there a difference between nginx single or multiple server configuration?

There are several services running on different ports on my web server. These services are providing data via WebSocket.

Currently, each service has its own server in the nginx configuration, like this:

server {
        listen 9031 ssl;
        location / {
                proxy_pass http://127.0.0.1:9002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }
}

server {
        listen 8031 ssl;
        location / {
                proxy_pass http://127.0.0.1:8002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }
}

server {
        listen 7031 ssl;
        location / {
                proxy_pass http://127.0.0.1:7002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }
}

server {
        listen 6031 ssl;
        location / {
                proxy_pass http://127.0.0.1:6002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }
}

server {
        listen 5031 ssl;
        location / {
                proxy_pass http://127.0.0.1:5002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }
}

What I also could do is something like this:

server {
        listen 9031 ssl;
        location /service1 {
                proxy_pass http://127.0.0.1:9002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }

        location /service2 {
                proxy_pass http://127.0.0.1:8002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }

        location /service3 {
                proxy_pass http://127.0.0.1:7002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_read_timeout 86400;
        }

        ...
}

The second approach looks a bit nicer (and a nice side effect would be to have fewer ports that needs to be configured on the router). But my questions are now: is there a method to prefer? Are there any side-effects in terms of performance, stability etc.? What is the recommended approach or is it the same which one to use?

Tôi đã sử dụng cả hai phương pháp trong quá khứ và cả hai đều là cấu hình hợp lệ.

Trong cách tiếp cận thứ hai, hãy để ý các đường dẫn bị thiếu trong các URL trong phản hồi của bạn với khách hàng. Bạn có thể cần sử dụng viết lại hoặc một cái gì đó tương tự. Có một số cách tiếp cận để phù hợp với điều này.

Ví dụ, nếu tôi yêu cầu https://www.example.com/service1, phản hồi từ http://127.0.0.1:9002 cần bao gồm đường dẫn /dịch vụ1 vì vậy mọi yêu cầu tiếp theo sẽ đạt được dịch vụ dự định.