DEV Community • 2026-04-17 17:14

How I built a Stripe Webhook in Node.js (Full Guide)

How I Built a Stripe Webhook in Node.js (Full Guide) Webhooks are essential for handling asynchronous events in payment processing systems. In this deep dive, I'll show you how to build a production-grade Stripe webhook handler in Node.js with proper security, error handling, and idempotency. Understanding Stripe Webhook Architecture Stripe webhooks use HTTP POST requests to...

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From CSV Import Demo to CSV Triage Console
DEV Community • 2026-04-17 17:13

From CSV Import Demo to CSV Triage Console

Most CSV import examples stop at the same place: upload a file parse it validate a few fields insert rows That is enough for a demo. It is not enough for operations. In my earlier version, I already had a preview-first CSV intake flow with validation, normalization, row decisions, and an import run model behind it. But after building and testing the operator screen more seriously, I realize...

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From CSV Import Demo to CSV Triage Console
DEV Community • 2026-04-17 17:13

From CSV Import Demo to CSV Triage Console

Most CSV import examples stop at the same place: upload a file parse it validate a few fields insert rows That is enough for a demo. It is not enough for operations. In my earlier version, I already had a preview-first CSV intake flow with validation, normalization, row decisions, and an import run model behind it. But after building and testing the operator screen more seriously, I realize...

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5m read
Hacker News • 2026-04-17 17:13

Show HN: Bird, a CLI for Tired Brains

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DEV Community • 2026-04-17 17:11

Your API is down — now what? Capturing failure context in Node.js

Most monitoring tools tell you one thing "Your API is down." That's useful. But only partially. I wanted to go beyond "it's down" and understand why — specifically, where in the request lifecycle things actually broke. The frustrating part of debugging failures The first time this really hit me, I spent almost an hour digging through logs after a 3am alert — only to rea...

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Hacker News: Front Page • 2026-04-17 17:10

Random musings: 80s hardware, cyberdecks

Article URL: https://strangelyentangled.com/blog/musings-80s-hardware/ Comments URL: https://news.ycombinator.com/item?id=47808174 Points: 5 # Comments: 0

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DEV Community • 2026-04-17 17:06

Ataque a Trivy: 340 GB filtrados de la Comisión Europea en 2026

El ataque a Trivy que se hizo público a finales de marzo de 2026 es, probablemente, el incidente de cadena de suministro más irónico del año: la herramienta open-source que miles de equipos usan para detectar vulnerabilidades en contenedores, filesystems, repositorios y clústeres de Kubernetes terminó siendo la puerta de entrada para exfiltrar 340 GB de datos (91,7 GB comprimidos) de la Comisión E...

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DEV Community • 2026-04-17 17:06

How Smart Model Routing Picks the Right AI for Your Programming Language

The dirty secret of AI code review is that there is no single "best" model. There are only models that happen to be good at the specific thing you're asking them to do right now. I learned this the hard way while building 2ndOpinion, an AI code review tool where Claude, Codex, and Gemini cross-check each other's work over MCP. The first version hard-coded one model for every review. The reviews w...

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The Architect and the Machine: The End of Code, the Reign of Intent
DEV Community • 2026-04-17 17:05

The Architect and the Machine: The End of Code, the Reign of Intent

Since the dawn of existence, humanity has sought to close the gap between idea and realization. We have journeyed through three great eras before reaching the threshold of the fourth. First came the era of muscle, where ideas were bound by the physical fatigue of the body. Then came the era of the machine, where humans became pilots of mechanical force. Finally, the era of code, where pure logi...

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DEV Community • 2026-04-17 17:05

How to Find and Fix Flaky Tests in pytest

pytest is the gold standard for Python testing. But its powerful fixture system and Python's dynamic nature create unique flakiness patterns that only surface in CI. This guide covers the five most common causes of flaky pytest tests and gives concrete fixes for each. Why pytest tests become flaky Database state leaking between tests — Tests share a DB and don't isolate transactions...

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DEV Community • 2026-04-17 17:02

Build a Voice Appointment Reminder Bot: AI Calls That Confirm, Reschedule, or Cancel

No-shows are expensive. Whether you're running a clinic, a salon, a law office, or a SaaS demo pipeline — every missed appointment is lost revenue. The traditional fix is a human calling each person the day before. That doesn't scale. The modern fix is an AI voice bot that calls, holds a real conversation, and updates your system based on what the customer says. Let's build one. The Pr...

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Hacker News: Front Page • 2026-04-17 17:01

Kyber (YC W23) Is Hiring a Head of Engineering

Article URL: https://www.ycombinator.com/companies/kyber/jobs/TcEa3b5-head-of-engineering Comments URL: https://news.ycombinator.com/item?id=47808047 Points: 0 # Comments: 0

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How I Built a Static Analyzer for Python Env Variables in ~700 Lines
DEV Community • 2026-04-17 17:00

How I Built a Static Analyzer for Python Env Variables in ~700 Lines

I keep forgetting to add new env vars to .env.production before deploying. A few times it was harmless, a few times it was not. At some point it was easier to write a tool than to fix myself. The tool is envsleuth. It reads your Python source, finds every os.getenv() / os.environ[] / os.environ.get(), and compares that list with your .env file. Pretty boring on the outside, but building it was ...

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DEV Community • 2026-04-17 17:00

How to Run LLMs Locally When Cloud AI Gets Too Invasive

If you've been paying attention to the AI space lately, you've probably noticed a trend: cloud AI providers are tightening the screws on identity verification. We're talking government IDs, facial recognition scans, the works. For a lot of developers, that's a hard no. I'm not here to debate whether these policies are justified. What I am here to do is walk you through a practical setup for runni...

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NN/g latest articles and announcements • 2026-04-17 17:00

Boost Design Autonomy with an Information Pipeline

A four-step framework for building influence over product direction by closing the information gaps that large, complex organizations create.

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NN/g latest articles and announcements • 2026-04-17 17:00

Less Chat, More Answer: Site AI Chatbots Need to Get to the Point

Users turn to site-specific chatbots for quick answers, not a conversation. Design responses that are direct, scannable, and easy to expand when needed.

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🌍 Deep-Time Mirror: An AI Lens into Our Ecological Soul For Earth Day Edition.
DEV Community • 2026-04-17 16:59

🌍 Deep-Time Mirror: An AI Lens into Our Ecological Soul For Earth Day Edition.

This is a submission for Weekend Challenge: Earth Day Edition (April 22) What I Built I built the Deep-Time Mirror, an immersive, AI-powered "temporal lens" that allows users to witness the environmental evolution of any location on Earth. The goal was to move beyond cold, flat data and create an emotional connection with the land. The Mirror takes you through three distinct epochs: ...

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Programs for Pincode, Gmail, and Mobile Number Validation
DEV Community • 2026-04-17 16:58

Programs for Pincode, Gmail, and Mobile Number Validation

1.Write a program to check whether a given Gmail ID is valid or not. Python def verify_Gmail(Gmail): i=0 while i<len(Gmail): current=Gmail[i] i+=1 if current>="a" and current<="z": continue; elif current>="A" and current<="Z": continue; elif current>="0" and current<="9": continue; ...

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DEV Community • 2026-04-17 16:58

We audited every claim in our repos and found 14 files with wrong numbers

Last week a bot embarrassed us. Cursor Bugbot ran across five PRs on our agent security testing framework and filed nine real issues: an HTTP 413 handler that returned an empty body, undefined variables that only surfaced in live mode, regex patterns being compared as literal substrings, and a metric definition in an arXiv citation that directly contradicted what we were computing. Every finding w...

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DEV Community • 2026-04-17 16:57

I Built a Code Archaeology Engine for AI — Here's Why Claude and Cursor Keep Forgetting Your Architecture

TL;DR: AI coding assistants have zero architectural memory. Every session starts from scratch. I built LORE — an open-source MCP server with 13 analyzers that gives your AI deep understanding of your codebase structure. Works with Claude Desktop, Cursor, and Windsurf. The Problem: AI Has Amnesia Every time you start a new AI coding session, the same ritual happens. You explain: "We...

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