Function handler

cdk/lib/constructs/lambda-warmer/lambda/handler.ts:4–14

(event, context)

import { LambdaWarmerPayload } from './type';

export const handler: Handler<LambdaWarmerPayload> = async (event, context) => {
  const { url, concurrency } = event;

  console.log(`warming ${url} with concurrency ${concurrency}...`);

  await Promise.all(
    new Array(concurrency).fill(0).map(async () => {
      await fetch(url);
    })
  );
};