How to return a value in NodeJS inside of an Async function?

Question

I have the following code:

async function myPromiseFunction() {
  return "test";
};

function processComment(params) {
    (async () => {
          console.log(await myPromiseFunction());
    })();
}

exports.main = processComment;

The only way to output HTML code to the DOM in this case (serverless function), is through return {"body": "<h1>Test</h1>"}.

The problem is, if I put return {"body": "<h1>Test</h1>"} inside of the Async, it does not work and just does not return anything - it only works inside the processComment function whilst it is outside an async.

How can I replace console.log(await myPromiseFunction()); with return {"body": await myPromiseFunction())?

I can only console.log the value, but how can I return it so that it gets outputted as HTML?

Can you not just add return to processComment() method like this? function processComment(params) { return (async () => { await myPromiseFunction(); })();} — Harsh Tuwar
– Harsh Tuwar, Commented Jul 12, 2022 at 18:19
@HarshTuwar How would I do that in the context of return {"body":val} - return {"body": (async () => { await myPromiseFunction(); })()}? — ewfewfjio
– ewfewfjio, Commented Jul 12, 2022 at 18:26

Harsh Tuwar · Accepted Answer · 2022-07-12 18:39:45Z

1

I think updating your processComment() method like this would do the trick. Please let me know if that doesn't work so I can update this answer :D

function processComment(params) {
    return (async () => {
          var data = await myPromiseFunction();
          return { "body": data };      
    })();
}

edited Jul 12, 2022 at 18:39

answered Jul 12, 2022 at 18:31

Harsh Tuwar

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4 Comments

ewfewfjio Over a year ago

Thanks but doesn't work unfortunately, it just doesn't return anything

Alexander Mills Over a year ago

you have to put a return statement at the bottom

ewfewfjio Over a year ago

@AlexanderMills Do you have an example of that? I put the return statement they have in their example

Harsh Tuwar Over a year ago

Thanks for pointing that out Alexander! @ewfewfjio, missed one more return statement. Check if this works?

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