Node.js Email Webhooks Need an Idempotency Ledger
Email verification becomes a different problem once delivery is asynchronous. The browser submits a form, a provider sends a message, and your app receives one …
Englishdev.to TypeScript
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Keeping a local copy of Reddit's saved list with a Manifest V3 extension
Disclosure: I built SaveShelf, and this post was drafted with AI assistance and edited by me. Reddit's Saved page only lists your newest ~1,000 items and has no…
Englishdev.to JavaScript
Our TinyLaunch Launch: 7 December 2026, Nine Apps Under One Membership, and What the Free Plan Includes
I work on OnePassApps, the team behind app.onepassapps.com. We are launching on TinyLaunch on Monday, 7 December 2026, and the launch page is already open, so t…
Englishdev.to JavaScript
Playwright fixtures: built-in, custom and worker-scoped
Originally published on the Momentic blog . TL;DR Playwright fixtures supply test dependencies and handle setup and teardown. This guide uses the built-in page …
Englishdev.to JavaScript
Reading a stack trace that points at your own line
A stack trace is a list of "who called whom", newest first. Most of us skim it for a file name we recognise. A few habits make the trace do that work for you. R…
Englishdev.to JavaScript
A tiny evidence log for manual AI search tests (拾玖搜证台)
When I started checking whether an AI search product could find a small tool, I ran into a measurement problem before a search problem: three different tasks we…
Englishdev.to JavaScript
The Case for Bounding Your Random Number Generator Tests
Randomness is one of the few things in software that looks correct while being wrong, which makes it worth testing deliberately. This post is about a small tool…
Englishdev.to JavaScript
Building a Canvas-Based Alpha Channel Validation Tool
Introduction Creating a canvas-based tool to validate alpha channel integrity is essential for developers handling transparent assets. This guide provides a ste…
Englishdev.to JavaScript
Forward iPhone SMS to a webhook, with a 30-line receiver
iPhones don't let apps read your texts, so there's no SMS API to call. What iOS does have is Shortcuts: a Message automation can run an action every time a text…
Englishdev.to JavaScript
Building Custom Royalty & Compliance Rules with Solana Token-2022 Transfer Hooks in Anchor 0.30+
Solana's original SPL Token standard powered billions of dollars in volume, but enforcing custom transfer logic—such as mandatory royalties, compliance checks, …
Englishdev.to Rust
OpenTelemetry Collector Custom Builds: 6.5x Smaller, and What Resource Detectors Cost at Startup
The contrib release of the OpenTelemetry Collector 0.164.0 is a 420.3 MB binary on linux/amd64. We built a Collector with the OpenTelemetry Collector Builder (o…
Englishdev.to Go
HTTP/2 Multiplexing Under Load: Stream Prioritization, Head-of-Line Blocking, and the Connection Reuse Trap
HTTP/2 Multiplexing Under Load: Stream Prioritization, Head-of-Line Blocking, and the Connection Reuse Trap HTTP/2 shipped with a promise: a single TCP connecti…
Englishdev.to Go
Node.js Presigned URL Audit for Backup Downloads (Object Storage Retention)
A selected backup snapshot should remain private until an authorized tenant asks to restore it. The least complex way to deliver its archive is a short-lived pr…
Englishdev.to Go
Go Courier Presence Under Load — Realtime Fan-Out Event Delivery Without Map Drift
The page says visible_couriers_stale > 8% for 5m . Dispatchers see drivers frozen two streets behind their actual position, while the ingest graph still looks h…
Englishdev.to Go
Cost-First or Sample-First: A Debate Over How Agent SQL Loops Handle Unknown Table Sizes
A drafting agent returns a query that reads fine: three joins, a GROUP BY , a date filter, an ORDER BY on the aggregate. Nothing in the SQL signals danger. The …
Englishdev.to Database
LISTEN/NOTIFY performance in PostgreSQL
I'm building Corfedo Work , a .NET library for background jobs that keeps its state in the application's own PostgreSQL database. Its workers need to know when …
Englishdev.to Database
Stop Hardcoding Delivery Fees: Keeping Store Settings in the Database with Next.js
Every store starts the same way. Somebody says "free delivery over a certain amount", and a developer writes a constant at the top of a file. A month later the …
Englishdev.to Database
Del ZIP al dashboard público: 1,89 millones de viajes con DuckDB y dbt
Mariela Estefany Ramos Loza Construimos un pipeline que procesa los viajes de Citi Bike de Nueva York de enero de 2024 y genera un dashboard público con las sal…
Englishdev.to Database
Introducing tunnel endpoints for private access to network segments
AWS PrivateLink has introduced tunnel endpoints, which you can use to privately access a network segment in another AWS account. You might be a vendor or servic…
EnglishAWS Networking Blog
Introducing device posture assessment for AWS Client VPN
When a user connects to your network, do you know whether their device meets your security requirements? With device posture assessment for AWS Client VPN , you…
EnglishAWS Networking Blog