4 articles found
Middleware is how Express works. Not just a feature of it -- it is the whole thing. This is the talk I give to every new hire: the five middleware types, execution order, why next() trips everyone up, async error handling, and the patterns we actually use in production.
I used to hate Promises. Callbacks felt intuitive and Promises felt like ceremony. Then I actually learned how they work -- the constructor, chaining, combinators, the microtask queue -- and I stopped fighting them. Here's everything I figured out the hard way.
I've been asked about the event loop more than any other Node.js topic. Here's how I finally made sense of it -- why Node can juggle thousands of connections on one thread, and the mistakes I kept making that blocked it.
I got tired of writing try-catch in every async function. Here are four patterns I've collected over the years -- from Go-style tuple returns to retry logic -- that keep error handling clean without hiding failures.