Reliable Webhooks in TypeScript: Idempotency, Deduplication and Failure Recovery
Webhook providers deliver at least once, not exactly once. That single fact explains most webhook bugs: duplicate emails, double-credited balances, or
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Webhook providers deliver at least once, not exactly once. That single fact explains most webhook bugs: duplicate emails, double-credited balances, or
An AI agent proposes a WETH → USDC swap. Before execution, it may see an oracle reference price and a simulated route quote. After execution, it can o
Every Node project written in TypeScript used to carry the same small tax. You wanted to run a one-off script, so you reached for ts-node, then fought
Most job queue tutorials start with Redis, RabbitMQ, or some managed queue service. That's fine for teams with existing infrastructure — but if you're
For the first year of this project, every conversation I had about Neuron AI started with the same question: Can PHP really do this, or are you a few
Node.js is a runtime environment for executing JavaScript outside the web browser. From small scripts to large-scale back-end applications, Node.js pr
Notifio has fifteen pages about other companies' alert features and five pages comparing itself to direct rivals. That is thirty-ish screens of writin
How Stayput removes location and camera data from photos in the browser, byte for byte, in about 600 lines of TypeScript and no library. I built Stayp
Before any of the content existed, our site had eight public pages and three lists of routes: the auth middleware's allowlist, the sitemap, and robots
Notifio sells a one-time licence for £20. Customers in the EU are routed through Stripe as merchant of record, so Stripe calculates, collects and remi
wp-admin isn't a blank canvas — it's a shared apartment building, and every active plugin is a tenant with a key. This is the etiquette guide nobody h
You might think that your code editor is just a tool you're using to write code, but I think it's a personality type, a lifestyle choice... If you di
I didn’t wake up one day and decide to “become a Linux person.” I just got tired of a workflow that felt loud — notifications, bloat, apps I didn’t c
A copy-trading bot has one job that matters more than any other: notice that the wallet you follow just traded. Everything after that, from sizing and
Laravel's service container has a familiar method: $this->app->singleton(MyService::class); It means Laravel creates the service once and reu
Originally published at ambrain.org. How a FIX trading terminal with a Rust core is built, from session recovery to the ladder, and the proof that sh
Multi-tenancy has three common implementations: a database per tenant, a schema per tenant, and a column on every row. For a SaaS that starts small an
A Polymarket trading bot can have a good strategy, fresh market data, and a working execution engine - and still be unsafe to let it trade. The diffi
Hey everyone! 👋 I'm Gurpreet, a Computer Science Engineer from India, and this is my first post on DEV.to. For a while, I've been learning different
Table of Contents 0. What Does This Article Continue to Answer? 1. How Does HotSpot Implement AtomicInteger? 1.1 Layers 1.2 A Complete