Why is waitUntil not working in my Vercel serverless function?

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1

Hi everyone,

I’m trying to execute a series of asynchronous tasks in a Vercel serverless function using waitUntil. However, it doesn’t seem to work as expected, and my function times out with the following
error: Vercel Runtime Timeout Error: Task timed out after 15 seconds

2

It sounds like you might be hitting the default max duration for a serverless function. Have you tried increasing it? Configuring Maximum Duration for Vercel Functions

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3

Thanks for jumping in here, @dev-adclear! Definitely extra points for the leaderboard if you’re interested :smiley:

@johnson-8844 Let us know how you get on!

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4

I couldn’t predict the duration of the API call, so I used the waitUntil function. It was working fine initially, but suddenly, it stopped working. Why could this be happening?

Code

5

Hi @johnson-8844, waitUntil should work fine but remember it doesn’t make your function run more than the maximum time limit.

From the code, I’d recommend doing parallel calls instead of sequential:

const tasks = async () => {
        await Promise.all([countVotes(),
        createBattle(),
        mintNfts(),
        automateReward()]
      };

This should reduce the total execution time but you should still check what is slowing your function down.

6

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