Setup Lambda function with Node.js

プロジェクトの初期化

mkdir my-function
cd my-function

flake.nix:

{
  description = "Description for the project";

  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = inputs@{ flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [
        # To import an internal flake module: ./other.nix
        # To import an external flake module:
        #   1. Add foo to inputs
        #   2. Add foo as a parameter to the outputs function
        #   3. Add here: foo.flakeModule

      ];
      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
      perSystem = { config, self', inputs', pkgs, system, ... }: {
        # Per-system attributes can be defined here. The self' and inputs'
        # module parameters provide easy access to attributes of the same
        # system.

        # Equivalent to  inputs'.nixpkgs.legacyPackages.hello;
        packages.default = pkgs.hello;

        _module.args.pkgs = import inputs.nixpkgs {
          inherit system;
          config.allowUnfree = true;
        };

        devShells.default = pkgs.mkShell {
          packages = [
            pkgs.awscli2
            pkgs.claude-code
            pkgs.gh
            pkgs.git
            pkgs.nodejs_24
            pkgs.pnpm
          ];
        };
      };
      flake = {
        # The usual flake attributes can be defined here, including system-
        # agnostic ones like nixosModule and system-enumerating ones, although
        # those are more easily expressed in perSystem.

      };
    };
}

• コード

pnpm init

• プロジェクトの初期化

依存関係のインストール

pnpm add -D @types/aws-lambda
pnpm add -D tsdown
pnpm add -D -E @biomejs/biome

• インストール
• インストール

コード

src/index.ts:

import { Handler } from "aws-lambda";
 
export const handler: Handler = async (event) => {
	console.log(`Event: ${JSON.stringify(event, null, 2)}`);
 
	return {
		statusCode: 200,
		body: JSON.stringify({
			message: "hello, world",
			nodeVersion: process.version,
		}),
	};
};
 

ビルド

npx tsdown

• 実行

デプロイ

npx tsdown && cd dist && rm -f my-function.zip && zip my-function.zip index.mjs