npmrc

Sometimes, when I run yarn for a project that uses a private dependency (whose registry access requires an auth token), I run into the 401 error: Usually this doesn’t happen if we have a proper .npmrc file somewhere up the root of the workdir (typically in the user home directory). But sometimes I am forced […]

k8s kustomize

k8s kustomize has always perplexed me (as a non-frequent user). Hopefully by writing this down, I’ll get more acquaintance with it.

istio exp

This blog entry is meant to host random discoveries noted during my work with Istio in general

React SSR Deep(ish) look

Today, I looked into the React SSR sample code. (Kudos to Dan and team for the sophisticated user-land experience, btw). What stroke my curiosity was the <!DOCTYPE html> token at the start of the server response HTML payload: Why was I curious, you ask? Cuz at no point in the codebase do we explicitly write […]

wasm-pack from scratch

Today I decided to try wasm-pack from scratch. Let’s walk the talk together and see what we pick up along the way!

how to assert that your custom hook didn’t throw

This micro blog entry is for those who: use renderHook from @testing-library/react-hooks to test their own custom hooks want to assert that the custom hook did not throw So, by instinct, one probably would do sth along this line: The reason why the above approach doesn’t work is quite obvious, if you think about it. […]

useful linux commands to manage disk drives & partitions

This post is simply a collection of commands I use over the years when it comes to managing disk drives & partitions on Linux operation systems. This post only lists the commands themselves without discussing their arguments or detailed usages.

e-money journal

Today I started poking around with e-Money. For those who have never heard of it: it is crypto money, and is behind several European stablecoins like eEUR, eCHF, eSEK, eNOK, eDKK. Here’s the project roadmap. Since this is a largely tech blog, I don’t intend to go into financial & other social aspects of crypto […]

Joining the world of blockchain

So, this blog post is simply a public “diary entry” announcing to the world that I’ve officially entered the world of blockchain. Now, this is late 2021 when I’m writing these lines. Blockchain itself started as early as 2009 (at least publicly – but definitely the idea was incepted from an even earlier point in […]

TypeScript Node.js testing tips

Situation 1 Use mocha in server-side TypeScript projects with compilerOptions.paths in tsconfig.json ? Then we need: mocha tsconfig-paths ts-node { “ts-node”: { “files”: true } } in the tsconfig.json file (see more here) Depending on how we import our modules around in the codebase, point (4) above may not always be needed. In one of […]