Lambda는 서버를 프로비저닝하거나 관리하지 않고도 코드를 실행할 수 있게 해주는 컴퓨팅 서비스입니다. 
Lambda는 고가용성 컴퓨팅 인프라에서 코드를 실행하고 서버와 운영 체제 유지 관리, 용량 프로비저닝 및 자동 조정, 코드 및 보안 패치 배포, 로깅 등 모든 컴퓨팅 리소스 관리를 수행합니다. 
Lambda를 사용하면 거의 모든 유형의 애플리케이션 또는 백엔드 서비스에 대한 코드를 실행할 수 있습니다.

exports.handler =  async function(event, context) {
  console.log("EVENT: \n" + JSON.stringify(event, null, 2))
  return context.logStreamName
}

$npm i -g serverless

service: sample-project

plugins:
  - serverless-plugin-typescript
  - serverless-plugin-warmup
  - serverless-offline

provider:
  name: aws
  region: ap-northeast-2
  stage: dev
  runtime: nodejs16.x
    ecr:
      images:
        appimage:
          path: ./

functions:
  main:
    handler: src/lambda.handler
    events:
      - http:
         method: any
         path: /{any+}

"tsBuildInfoFile": ".tsbuildinfo",
"esModuleInterop": false

import { Handler, Context } from 'aws-lambda';
import { Server } from 'http';
import { createServer, proxy } from 'aws-serverless-express';
import { eventContext } from 'aws-serverless-express/middleware';

import { NestFactory } from '@nestjs/core';
import { ExpressAdapter } from '@nestjs/platform-express';
import { AppModule } from './app.module';

// eslint-disable-next-line @typescript-eslint/no-var-requires
const express = require('express');

const binaryMimeTypes: string[] = [];

let cachedServer: Server;

async function bootstrapServer(): Promise<Server> {
  if (!cachedServer) {
    const expressApp = express();
    const nestApp = await NestFactory.create(
      AppModule,
      new ExpressAdapter(expressApp),
    );
    nestApp.use(eventContext());
    await nestApp.init();
    cachedServer = createServer(expressApp, undefined, binaryMimeTypes);
  }
  return cachedServer;
}

export const handler: Handler = async (event: any, context: Context) => {
  cachedServer = await bootstrapServer();
  return proxy(cachedServer, event, context, 'PROMISE').promise;
};

Running "serverless" from node_modules
Compiling with Typescript...
Using local tsconfig.json - tsconfig.json
{
  file: undefined,
  start: undefined,
  length: undefined,
  messageText: "Option '--incremental' can only be specified using tsconfig, emitting to single file or when option '--tsBuildInfoFile' is specified.",
  category: 1,
  code: 5074,
  reportsUnnecessary: undefined,
  reportsDeprecated: undefined
}
Environment: darwin, node 16.13.2, framework 3.25.1 (local) 3.25.1v (global), plugin 6.2.2, SDK 4.3.2
Docs:        docs.serverless.com
Support:     forum.serverless.com
Bugs:        github.com/serverless/serverless/issues

Error:
TypeError: Cannot read properties of undefined (reading 'getLineAndCharacterOfPosition')

ANY /dev/test (λ: main)
✖ Unhandled exception in handler 'main'.
✖ TypeError: (0 , express_1.default) is not a function
      at bootstrapServer (/Users/byun/Desktop/program/github/time-manager/api/.build/src/lambda.js:14:50)
      at handler (/Users/byun/Desktop/program/github/time-manager/api/.build/src/lambda.js:23:26)
      at InProcessRunner.run (file:///Users/byun/Desktop/program/github/time-manager/api/node_modules/serverless-offline/src/lambda/handler-runner/in-process-runner/InProcessRunner.js:87:20)
      at async MessagePort.<anonymous> (file:///Users/byun/Desktop/program/github/time-manager/api/node_modules/serverless-offline/src/lambda/handler-runner/worker-thread-runner/workerThreadHelper.js:24:14)
✖ (0 , express_1.default) is not a function

sls config credentials --provider aws --key {keyId} --secret ${secretId}

[default]
aws_access_key_id=...
aws_secret_access_key=...