N
Nuxt•3d ago
valerio

Given that im building a nuxt app with aws-lambda preset, how can i apply callbackWaitsForEmptyEvent

Given that im building a nuxt app with aws-lambda preset, like: 
    nitro: {
        preset: "aws-lambda",
        inlineDynamicImports: true,
        serveStatic: true,
        }
    nitro: {
        preset: "aws-lambda",
        inlineDynamicImports: true,
        serveStatic: true,
        }
how can i apply callbackWaitsForEmptyEvent to be false?
2 Replies
kapa.ai
kapa.ai•3d ago
Hi @valerio. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the knowledge sources provided, I can see that you're trying to configure the callbackWaitsForEmptyEvent setting for your AWS Lambda deployment with Nuxt. This is related to how Lambda handles asynchronous operations after a response is sent. While the knowledge sources don't specifically mention the callbackWaitsForEmptyEvent setting for AWS Lambda, they do provide information about a similar concept in Nuxt/Nitro called event.waitUntil(). This method allows you to perform background tasks without delaying the response to the client. For your specific AWS Lambda configuration, you might want to use event.waitUntil() in your server handlers instead of trying to set callbackWaitsForEmptyEvent directly. Here's how you can use it: 
export default defineEventHandler((event) => {
  // schedule a background task without blocking the response
  event.waitUntil(timeConsumingBackgroundTask())

  // immediately send the response to the client
  return 'done'
});
export default defineEventHandler((event) => {
  // schedule a background task without blocking the response
  event.waitUntil(timeConsumingBackgroundTask())

  // immediately send the response to the client
  return 'done'
});
As explained in the Nuxt documentation, this method accepts a promise that will be awaited before the handler terminates, ensuring the task is completed even if the server would otherwise terminate the handler right after the response is sent. If you specifically need to set callbackWaitsForEmptyEvent: false for your AWS Lambda configuration, you might need to look into extending the Nitro configuration. Unfortunately, the provided knowledge sources don't contain specific information about how to set this AWS Lambda-specific setting in Nuxt's configuration. You might want to check the Nitro deployment documentation for more detailed information about AWS Lambda preset configurations, as suggested in the Nuxt deployment documentation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•3d ago
<@612831566565212160> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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