【Hono】HonoをCDKでAPI Gateway & Lambdaにデプロイする方法

aws configure

mkdir my-app
cd my-app
cdk init app -l typescript
mkdir lambda
touch lambda/index.ts

import * as cdk from 'aws-cdk-lib'
import { Construct } from 'constructs'
import * as lambda from 'aws-cdk-lib/aws-lambda'
import * as apigw from 'aws-cdk-lib/aws-apigateway'
import { NodejsFunction } from 'aws-cdk-lib/aws-lambda-nodejs'

export class MyAppStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props)

    const fn = new NodejsFunction(this, 'lambda', { //lambdaはlambdaの関数名です
      entry: 'lambda/index.ts', // このpathで実行ファイルを変更できます
      handler: 'handler',
      runtime: lambda.Runtime.NODEJS_20_X,
    })
    fn.addFunctionUrl({
      authType: lambda.FunctionUrlAuthType.NONE, // 認証なしに設定
    })
    new apigw.LambdaRestApi(this, 'myapi', {  // myapiはAPI GatewayのAPI名です
      handler: fn,
    })
  }
}

npm i hono

import { Hono } from "hono";
import { handle } from "hono/aws-lambda";

const app = new Hono();

app.get("/", (c) => c.text("Hello Hono!"));

export const handler = handle(app);

cdk deploy

CdkTestStack: deploying... [1/1]
CdkTestStack: creating CloudFormation changeset...

 ✅  CdkTestStack

✨  Deployment time: 53.42s

Outputs:
CdkTestStack.myapiEndpoint8EB17201 = https://xxxxxxx.execute-api.ap-northeast-1.amazonaws.com/prod/
Stack ARN:
arn:aws:cloudformation:ap-northeast-1:000000000000:stack/MyAppStack/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

✨  Total time: 56.85s

Outputs:
CdkTestStack.myapiEndpoint8EB17201 = https://xxxxxxx.execute-api.ap-northeast-1.amazonaws.com/prod/　←このURL