getting same response from a promise multiple times

so i have a function that would return a promise , and in case of error I have to call the same function again but the problem that whenever i call it again the same response i would get as if the function never called again and it using the same res before.

This is how am resolving..

   first_file = async () => {
        return new Promise(async (resolve, reject) => {
            //Generating the token
            (async () => {
                while (true) {
                    console.log("Resolving...");
                    resolve(token);
                    await sleep(5000);
                    resolved_token = token;
                }
            })();
        });
    };

^^ am just generating a token here that gona used in the second script

function sleep(ms) {
  return new Promise((resolve) => {
    setTimeout(resolve, ms);
  });
}
(async() =>{
while(true){
test = require("./test")
test.first_file ().then(res=>{
  console.log(res)

})
await sleep(15000)
}
})()

The expected value here is that every 15000ms (15 sec) i get a new response , here am getting the same response over and over again

** sorry for the misleading title , i didnt knew how to explain the problem

Answer

Promises represent a value + time, a promise’s settled value doesn’t change like the number 5 doesn’t change. Calling resolve multiple times is a no-op*.

What you want to do instead of using the language’s abstraction for value + time is to use the language’s abstraction for action + time – an async function (or just a function returning a promise)

   const tokenFactory = () => {
         let current = null;
         (async () => 
            while (true) {
              console.log("Resolving...");
              current = token; // get token somewhere
               await sleep(5000);
            }
          })().catch((e) => {/* handle error */});
          return () => current; // we return a function so it's captured 
    };

Which will let you do:

tokenFactory(); // first token (or null)
// 5 seconds later
tokenFactory(); // second token

_{*We have a flag we added in Node.js called multipleResolves that will let you observe that for logging/error handling}