I do have a problem with my asnyc functions, because they are not running one after another. That is my code:

async function main() {
  async function func() {
    for (let i = 0; i < array.length; i  ) {
      var result_amount = await calc(array[i]);
      if (result_amount > amount_start * 0.5) {
        console.log(
          "i: ",
          i,
          "Route: ",
          array[i][6],
          "amount_start: ",
          amount_start,
          "amount: ",
          result_amount
        );
      }
    }
  }

  const POLLING_INTERVAL = process.env.POLLING_INTERVAL || 1000; 
  Monitor = setInterval(async () => {
    await func();
  }, POLLING_INTERVAL);
}

main().catch((error) => {
  console.error(error);
  process.exit(1);
});

So there I am calling calc with the i-th element of my array. Lets say array has length 10. Then the code does not execute i = 0, then i = 1, then i = 2 ando so an, instead it is doing like i = 0, then i = 1, but then again i = 0. Why does this happen and how can I avoid this?

Thank you!

CodePudding user response：

It looks to me you are not handling the promise correctly inside setInterval. You need to "promisify" the setInterval method like so (keep in mind, I did not test this out but it should work):

return new Promise(function(resolve, reject) {
    setInterval(async function() {
      await func()
      resolve();
    }, POLLING_INTERVAL)
})

CodePudding user response：

I executed your code mocking some of data and for me it looks like it is going through all array.

I assume that there is some issue with one of the functions you have defined (probably calc() which has some timeout inside)