Efficient NestJS for small API. Terraform with remote state setup for deploying to AWS Lambda.
| Folder | Purpose |
|---|---|
| (root) | API. Initialized with NestJS |
| ./src/lambda.ts | Entry point for AWS Lambda |
| ./src/http-runnder.ts | local development entry point |
| ./infra | IaC to AWS |
| ./test | E2E tests |
| ./src | NestJS TypeScript codes |
| ./runners | Local development utils |
Use NestJS API for local development
npm run start&npm run start:debugstarts the NestJS API onlocalhost:3000- Use
npm run start:debugwith VSCode LauncherAttach NestJSto debug using VS Code breakpoints runners/POST-zoo.rest- sample post requestsrunners/events- partial data taken from AWS Lambda cloudwatch. Can be used to invoke thesrc/lambda.ts-handlermethod
Read the readme.md on ./infra.
- Utilize lazy-loading module pattern to reduce startup time.
- Study the
src/domainsexamples.zoois eagerly loaded whiledogsandcatsare lazy loaded. src/factories/lazy-module.factory.tssimplifies the lazy-module initialization and caching.
- Study the
- Webpack is not advisable as per reason mentioned on ZenSoftware/bundled-nest
... INFO #perf bootup time: 4.315s
... INFO #perf handler time: 61.218ms
... INFO #perf handler time: 0.761ms
... INFO #perf handler time: 0.668ms
... INFO #perf handler time: 0.749ms
https://docs.nestjs.com/faq/serverless#serverless
https://github.com/estevaodias/demo-terraform-nestjs-aws-lambda/tree/develop/ci
Special thanks to the authors
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