Start / AWS Bites / 41 how can middy make writing lambda functions easier

41. How can Middy make writing Lambda functions easier?

25 min • 16 juni 2022

Lambda functions are small units of code that achieve a specific purpose. It’s always a good idea to keep your code short, clean and simple. And yet, sometimes you find yourself writing lots of boilerplate code in every function to do common things, like parsing events, validation, loading parameters and lots more.

The Middy.js framework was designed to help you keep Node.js Lambda function code simple, letting you focus on the business logic and clearing away duplication and boilerplate. By the end of this episode, you will know: How Middy.js works with JavaScript and TypeScript, how to perform validation, event parsing and parameter loading, and how you can even write and use your own Middy middleware. Finally you’ll get to know who is using Middy and how you could contribute to the Middy ecosystem.

In this episode, we mentioned the following resources:

- Middy Website and documentation: https://middy.js.org/

- How to get started with middy (official docs): https://middy.js.org/docs

- Middy official middlewares (official docs): https://middy.js.org/docs/middlewares/intro

- How to write your own middlewares (official docs): https://middy.js.org/docs/category/writing-middlewares

- Middy integrations (official docs): https://middy.js.org/docs/category/integrations

- Interview with Taco Bell in an episode of Real World Serverless where they mention how they use middy: https://www.listennotes.com/podcasts/real-world/56-serverless-at-tacobell--k5gAQBMHSb/

- Open source projects using Middy: https://github.com/middyjs/middy/network/dependents?package_id=UGFja2FnZS00Njc1NDUzOTU%3D

- Lambda Power Tools for TypeScript Middy Integration: https://awslabs.github.io/aws-lambda-powertools-typescript/0.10.0/core/logger/#capturing-lambda-context-info

This episode is also available on YouTube: https://www.youtube.com/AWSBites

You can listen to AWS Bites wherever you get your podcasts:

- Apple Podcasts: https://podcasts.apple.com/us/podcast/aws-bites/id1585489017