AWS Lambda

Preset: aws_lambda

Nitro provides a built-in preset to generate output compatible with AWS Lambda. The output entrypoint in .output/server/index.mjs is compatible with the AWS Lambda format.

It can be used programmatically or as part of a deployment.

import { handler } from './.output/server'

// Use programmatically
const { statusCode, headers, body } = handler({ rawPath: '/' })

Inlining chunks

By default, Nitro output uses dynamic chunks to lazy-load code only when needed. However, this is not always ideal for performance (see the discussion in nitrojs/nitro#650). You can enable chunk inlining using the inlineDynamicImports config.

import { defineConfig } from "nitro";

export default defineConfig({
  inlineDynamicImports: true
});

Response streaming

To enable response streaming, set the awsLambda.streaming flag:

import { defineConfig } from "nitro";

export default defineConfig({
  awsLambda: {
    streaming: true
  }
});