serverless-compose

import { compose } from 'serverless-compose'

import { recoveryMiddleware } from 'serverless-compose'

import { timingLogMiddleware } from 'serverless-compose'

import { compose, recoveryMiddleware, timingLogMiddleware } from 'serverless-compose'; // Suppose this is a client that fetches the weather from some external API class WeatherClient { static async askBadAPIForWeather() { // Simulate a failing API call 50% of the time if (Math.random() > 0.5) { throw new Error('Weather API is down!'); } return { temperature: 25, unit: 'C' }; } } // Your actual handler code async function getWeather(request, context) { const response = await WeatherClient.askBadAPIForWeather(); return { statusCode: 200, body: JSON.stringify(response), }; } // Your own custom logging function async function logDuration(duration) { console.log(`It took: ${duration}ms to return the weather`); } // Your own custom error handler async function sendError(error) { console.error('Handler Error:', error); return { statusCode: 500, body: JSON.stringify({ error: `${error.message}`, message: 'The darn weather API failed me again!', }), }; } const TimingMiddleware = timingLogMiddleware(logDuration); const RecoveryMiddleware = recoveryMiddleware(sendError); const MyMiddlewareStack = compose( TimingMiddleware, RecoveryMiddleware, ); export const lambdaHandler = MyMiddlewareStack(getWeather);