Recent posts tagged node

Four test files in my site's repo import TypeScript directly. faq.test.mjs pulls in src/lib/faq.ts, and three others do the same with their own modules. There is no build step and no loader in between: the script is node --test "test/.test.mjs", and ...

Introduction Booking a consultation should be straightforward for the person making the appointment. Behind the scenes, however, an automated booking system has to coordinate several moving parts: collecting customer information, checking availabi...

My focus for this month of October will be on NestJS framework and how it has imparted my development experience as a fullstack software engineer. NestJS provides a structured framework for building Node.js applications, but the framework alone does ...

Mantenho todos os meus repositórios em uma única pasta — cerca de 150, entre trabalho para clientes, templates e experimentos. Cada um deles é uma pequena armadilha: um nodemodules dentro de app/ e um .terraform dentro de infra/terraform/. Nenhum dos...

A user scrolls through your feed. Page 1 ends with "Post 20". They tap "Next", and page 2 starts with... "Post 20" again. Another user pages through an admin table and never sees order #4817. It exists. It is in the database. It just never showed up...

A customer clicks "Pay now". Nothing happens for three seconds, so they click again. Or their phone loses signal for a moment and the app quietly retries the request. Or your load balancer times out and sends the request again. Your server received ...

Your endpoint sends 50 emails, marks 50 orders as shipped, and returns { success: true }. In your tests, it works. In production, the response comes back in 8 milliseconds, half the orders are still pending, and one failed email crashed the whole No...

I like the Supabase JS client. .from'todos'.select'id, task'.eq'done', false reads like what I mean, and { data, error } means I'm not wrapping every query in try/catch. What I don't always want is the stuff around it: a project URL, an anon key, an...

The safe n8n retry pattern is simple: create one stable idempotency key for the business operation, send the same key and payload on every attempt, retry only temporary failures, and store the confirmed result. Turning on Retry On Fail witho...

If your Node tests are green but callers still need casts, you’re mixing two different guarantees. A Node test proves what the function did when executed: the values returned, whether the input was mutated, and which inputs throw. It does not and can...

A safe AI email workflow creates a proposal, not a sent message. It gives that proposal a stable approval ID, stores it with a pending state, shows a reviewer enough context to decide, waits for a response, and only then allows one guarded s...

An ACID transaction is a set of four database safety rules—Atomicity, Consistency, Isolation, and Durability—that ensure database operations are executed reliably. It guarantees that even if your application crashes, loses power, or experiences thous...

When we were about to finish development of our applications in SwiftViews we noticed a pattern in all our data-fetching user flows. In spite of the fact that the apps are all data-driven and looked really dynamic, what really was changing in the sam...

One of the most common issues that developers encounter while working with npm Node Package Manager is the err! maximum call stack size exceeded error. This error can be frustrating and confusing, but don't worry, you're not alone! In this article, ...

title: I built an RPG that teaches Claude Code by making you actually use it published: true description: claude-quest is an in-terminal RPG for learning the Claude Code CLI. missions live in real sandbox directories, and progress is graded by check...