Question

An AI agent wrote this API-Gateway Lambda (TypeScript) that calls a flaky downstream service. When the downstream slows down, the Lambda bill spikes and clients get 504s. The HTTP call itself works. What's missing and why does it cost money?

1export const handler = async (event: any) => {2  const resp = await fetch(`https://downstream/api/${event.pathParameters.id}`);3  const json = await resp.json();4  return { statusCode: 200, body: JSON.stringify(json) };5};