Caching discussions often stay too abstract. In practice, I keep coming back to a small set of patterns depending on the failure mode I care about. 1. Cache-aside for read-heavy data This is the ...

Idempotency is one of the simplest ideas that prevents some of the ugliest production bugs. If a client retries a request because of a timeout, network flap, or browser refresh, the backend should...

Introduction Isolation levels define the degree of visibility that one transaction has over the changes made by another concurrent transaction. This article dives into the isolation levels in MySQL...

Problem statement: The efficient way to find all items near a given location(lat, long). The obvious solution: The easiest way would be to calculate the distance of all items from the given loca...

In TypeScript, managing union types often introduces complexity, particularly with type guards, leading to verbose and less transparent code. Consider this typical scenario: type SelectProps = { ...

In this post, we will see how to setup a new typescript-node project in 2024. We will use pnpm as package manager, ts-node for running typescript code directly, eslint for linting, prettier for for...