DeveloperWeek 2023

Josh Goldberg, Developer, Open Source Development

Promises and async/await are the right way to work with asynchronous code in Node.js. They're also both the easiest code constructs to introduce bugs with -- and can be some of the hardest code to debug. We'll walk through:

* Refactoring pre-Promise callback hell to Promises
* Refactoring pre-async/await Promises to async/await
* Debugging with console logs and node --inspect
* "Floating" Promises (those created and not handled): detection with TypeScript ESLint, and error handling
* "Sinking" Promises (those created and handled improperly): detection with TypeScript ESLint, and error handling

By the end of this workshop, you'll be fully prepared to debug even the gnarliest asynchronous shenanigans and write production quality asynchronous code.