Technical

314 articles ยท all categories

March 2021

How a $12 AWS bill powers a $50k business

my point is that running server code on the web has become ridiculously cheap *and* easy

Variants โ€“ a quick tip for better React components

Reusable components like to grow boolean props for different situations and complexity soon blows up. Variant props are the perfect solution.

February 2021

Reverse engineer a GraphQL API to automate love notes โ€“ CodeWithSwiz 24

We used a man-in-the-middle attack to snoop an app's API traffic, replayed it in a GraphQL client, and successfully put it inside an AWS Lambda ๐Ÿค˜

A TypeScript trick for reusable hooks

Reusable hooks are all fun and games until TypeScript starts yelling at you about incompatible types.

React Bricks - visual blocks editor for NextJS #CodeWithSwiz 22

Tried a new visual editor for NextJS and CreateReactApp. Got a site up in 20min ๐Ÿค˜

The Magic Function principle

Write functions, mostly magic.

January 2021

[CodeWithSwiz 21] useAuth beta support for Firebase ๐ŸŽ‰

It works! useAuth has beta-level support for Firebase Auth ๐Ÿฅณ I did not expect that to take 3 sessions.

Tech interview best practice that fails in life

Tech interviews have a magic answer: The hashmap. And it's not always best on the job.

[CodeWithSwiz 20] Adding Firebase support to useAuth, pt2

Firebase continues to be ๐Ÿ’ฉ. No wonder people keep asking for support in useAuth. Almost there โœŒ๏ธ

[CodeWithSwiz 19] Firebase Auth support in useAuth, pt1

Support for Firebase Auth is one of the most requested features for useAuth and I figured what the heck, how hard can it be?

November 2020

SSR, SSRwR, SSG, CSR, WTFBBQ???

These abbreviations are getting out of hand. It's like a bad interviewer's wet dream.

Gatsby to NextJS pt1, server-side-render or server-side-generate?

Gatsby and NextJS do similar things differently. One is better for websites, the other for webapps. In episode 17 of CodeWithSwiz we explore the biggest difference.

Use private libraries to cleanup your codebase

You're using the many-small-repositories approach to work faster as a team. But where do you put shared code? How do you make it nice to use? How to publish and install private packages?

React context without context, using XState โ€“ CodeWithSwiz 14, 15

useAuth works without React Context! ๐ŸŽ‰ here's how

October 2020

Swap useReducer with XState โ€“ CodeWithSwiz 13

In Refactoring a useReducer to XState we talked about a 5 step process to turn a reducer into an XState state machine. Today answers "Ok now what?"

How to write tests for XState โ€“ CodeWithSwiz 12

Once you know how to refactor a useReducer to XState, you gotta prove you did it right.

Refactoring a useReducer to XState, pt1 โ€“ CodeWithSwiz 11

XState promises to be like useReducer+Context combined and the simplest way to handle complex state in React apps. But can it deliver? On this episode of #CodeWithSwiz, we gave it a shot.

September 2020

Prefetch data with React Query and NextJS โ€“ CodeWithSwiz 8, 9

Prefetching lets you start React apps without loading spinners. Gatsby introduced this concept with `staticQuery`, react-query and NextJS make the pattern easier ๐Ÿ˜

Modern backend is a JavaScript function

Many engineers think server-side code is the scary domain of True Engineers. Something newbies, juniors, and frontend engineers shouldn't touch. They're wrong. Modern backend is a joy. โค๏ธ

Using JavaScript to commit to Github โ€“ CodeWithSwiz 7

Update code with a JavaScript function? Easier than you think ๐Ÿ˜

Why NextJS /api routes are fab โ€“ CodeWithSwiz 6

In this episode of CodeWithSwiz, we tried NextJS's support for /api routes โ€“ code running on the backend. In a word โ€“ Wow

Exploring NextJS with a headless CMS, pt4 โ€“ CodeWithSwiz

NextJS getStaticProps, environment vars, and why you shouldn't use yarn link โ€“ all in this episode of #CodeWithSwiz

Exploring NextJS with a custom CMS, pt3 โ€“ CodeWithSwiz

Friend, this episode of #CodeWithSwiz was a great example of why you want to start using TypeScript and how thermal load *destroys* computers.

Building a small CMS with NextJS, pt2 โ€“ CodeWithSwiz

You're the computer, the CMS is your script. Starting small, trying NextJS, comparing microbundle vs. parcel for extracting libraries out of projects.

Your first NextJS app โ€“ CodeWithSwiz

On CodeWithSwiz ep2, we tried NextJS and built our first tiny app. Complete with a design system, static rendering, React Query to talk to AWS Lambda, and deployed to live ๐Ÿค˜

August 2020

CodeWithSwiz: Privacy-focused embeds for YouTube, Twitter, et al

A new old experiment ๐Ÿ‘‰ regular livecoding. It's like a podcast with video, show notes, regular cadence, and we both learn something new.

You though computer science has no place in webdev? Here's a fun coding challenge

How to debug unified, rehype, or remark and fix bugs in markdown processing

When your brain is breaking, try XState

In 2020's, what is "frontend"? ๐Ÿคจ

"He's a frontend guy, is this even a fair question to ask?" The head of engineering was worried about our systems design question โ€ฆ