nginx mapping problem

Question

I built a 5000 port service a under the server with the domain name xx.com.
I want to do a layer of mapping through nginx
Map http://xx.com/a to xx.com :5000,

nginx conf is written like this

location /a{
    rewrite ^/a/(.*)/ break
    access_log off;
    proxy_pass http://127.0.0.1:5000
}

The current problem is that entering http://xx.com/a/ can be mapped correctly
but http://xx.com/a cannot. Please tell me how to modify it

Answer 1

rewrite ^/a(.*)/$1 break

Answer 2

Maybe it can be purple

location /a{
    rewrite ^/a(/|?|#|$)(.*)/ break
    access_log off;
    proxy_pass http://127.0.0.1:5000
}