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AWS Lambda

Use the hono/aws-lambda adapter to wrap HttpRouter for AWS Lambda.

1. Install​

npm install @daiso-tech/core hono
npm install -D esbuild

2. Create the handler​

// lambda/index.ts
import {
    HttpRouter,
    HttpRes,
    defaultHttpRouterAdapter,
} from "@daiso-tech/core/http-router";
import { handle } from "hono/aws-lambda";

const router = new HttpRouter({ router: defaultHttpRouterAdapter });

router.endpoint({
    url: "/hello",
    method: "GET",
    handler: async () => HttpRes.text("Hello AWS Lambda!"),
});

export const handler = handle(router);

File structure

.
├── lambda
│   └── index.ts
├── lib
│   └── my-app-stack.ts
├── package.json
└── cdk.json

3. Set up CDK deployment​

// lib/my-app-stack.ts
import * as cdk from "aws-cdk-lib";
import { NodejsFunction } from "aws-cdk-lib/aws-lambda-nodejs";
import { Runtime } from "aws-cdk-lib/aws-lambda";

export class MyAppStack extends cdk.Stack {
    constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
        super(scope, id, props);
        const fn = new NodejsFunction(this, "lambda", {
            entry: "lambda/index.ts",
            handler: "handler",
            runtime: Runtime.NODEJS_22_X,
        });
        const fnUrl = fn.addFunctionUrl({
            authType: cdk.aws_lambda.FunctionUrlAuthType.NONE,
        });
        new cdk.CfnOutput(this, "lambdaUrl", {
            value: fnUrl.url!,
        });
    }
}

4. Deploy​

cdk deploy

Reference: Hono on AWS Lambda