Lambda Deployment Example

The same App shape from basic-api, deployed as a real AWS Lambda function with a working esbuild bundle + zip build script.

Build

npm run build -w examples-lambda-deploy

This produces dist/handler.mjs and zips it to dist/handler.zip.

The build script

{
  "scripts": {
    "build": "esbuild src/handler.ts --bundle --platform=node --target=node18 --outfile=dist/handler.mjs --format=esm && zip -j dist/handler.zip dist/handler.mjs"
  }
}

Key differences from basic-api

Handler entrypoint

import { createLambdaHandler } from '@nodalite/adapter-lambda';
import { app } from './app.js';

export const handler = createLambdaHandler(app, {
  onColdStart: async () => {
    // Warm connections, load models
  },
});

Environment variables

Use Lambda environment variables or Secrets Manager — never bundle secrets.

Deploy

Upload dist/handler.zip to Lambda, set the handler to handler.handler, and configure an API Gateway HTTP API trigger.