after.ts

import * as aws from "@pulumi/aws";

const lambda = new aws.lambda.CallbackFunction("my-function", {
    callback: () => {
        console.log("Hello, world!");
    },
});

export const { id } = lambda;

before.ts

// Creating a Lambda function in Pulumi
import * as aws from "@pulumi/aws";

lambdaFunction = new aws.lambda.Function(`${lambdaName}`, {
    name: lambdaName,
    role: lambdaRole.arn,
    handler: "index.handler",
    runtime: "nodejs16.x",

    s3Bucket: codeBucket.id,
    s3Key: lambdaCodeObject.key,
    sourceCodeHash: lambdaZipHash,
  }, {
    dependsOn: [
      lambdaRole,
      cloudWatch,
    ],
  });