nginx replace part of request_uri before passing to-CodePudding

I am trying to replace an Id within my request_uri before passing it on via proxy_pass.The Id is replaced within a javascript function

js_set $replacedId http.replaceId;

location ~* v1\/relay-(?<givenId>.*?)(?=\/) 
{
    rewrite <givenId> $replacedId break; 
}

I want to keep the rest so input URL v1/relay-123456/logs/blabla should be translated to v1/relay-7890/logs/blabla during proxy_pass

CodePudding user response：

In case, ID is only numbers:

(?<=relay-)\d ?(?=\/)

In case, ID is any character:

(?<=relay-). ?(?=\/)

let regex = /(?<=relay-)\d ?(?=\/)/;
let url = 'v1/relay-123456/logs/blabla';

let newUrl = url.replace(regex, '7890');

console.log(newUrl);