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DEVELOPER NEWS STREAM

Direct logs, engine updates, and framework notifications parsed from curated RSS feeds and announcements, updated hourly.

Feature Flags from Scratch: Build a Runtime Toggle System in TypeScript (2026)
typescript2026-03-21
Young GaoYoung Gao

Feature Flags from Scratch: Build a Runtime Toggle System in TypeScript (2026)

Feature flags let you deploy without releasing. Build a runtime toggle system in TypeScript with percentage rollouts, user targeting, and A/B testing support.

How I Got 960 Pages Indexed with Next.js Segmented Sitemaps
nextjs2026-03-21
DevToolsmithDevToolsmith

How I Got 960 Pages Indexed with Next.js Segmented Sitemaps

If you're building a large Next.js site with hundreds of pages, a single sitemap can actually hurt...

[Boost]
react2026-02-14
RayMilesRayMiles

[Boost]

Computekit — Reusable heavy computations for JS & React ...

Building Your First MCP Server in TypeScript: Connect AI Agents to Anything
mcp2026-03-21
Young GaoYoung Gao

Building Your First MCP Server in TypeScript: Connect AI Agents to Anything

A hands-on guide to building Model Context Protocol servers that give AI agents superpowers. Real code, production patterns, and lessons learned.

Scaling WebSocket Connections: From Single Server to Distributed Architecture (2026)
websocket2026-03-21
Young GaoYoung Gao

Scaling WebSocket Connections: From Single Server to Distributed Architecture (2026)

Scaling WebSocket connections beyond a single server. Learn sticky sessions, Redis pub/sub fan-out, connection state management, and horizontal scaling patterns.

Background Job Processing in Node.js: BullMQ, Queues, and Worker Patterns (2026)
node2026-03-21
Young GaoYoung Gao

Background Job Processing in Node.js: BullMQ, Queues, and Worker Patterns (2026)

Here's the article body markdown: Your API returns 200. The user sees "success." Behind the...

Designing Idempotent APIs: Why Your POST Endpoint Needs Duplicate Handling (2026)
api2026-03-21
Young GaoYoung Gao

Designing Idempotent APIs: Why Your POST Endpoint Needs Duplicate Handling (2026)

A user clicks Buy twice. Two charges appear. Learn why every POST endpoint needs idempotency and how to implement it with idempotency keys, database constraints, and distributed locks.

Request Validation at the Edge: Zod Schemas, OpenAPI, and Type-Safe APIs (2026)
typescript2026-03-21
Young GaoYoung Gao

Request Validation at the Edge: Zod Schemas, OpenAPI, and Type-Safe APIs (2026)

Validate API requests at the edge with Zod schemas that generate OpenAPI docs automatically. Type-safe from request to response with zero runtime overhead.

BullMQ Job Queues in Node.js: Background Processing Done Right (2026 Guide)
node2026-03-21
Young GaoYoung Gao

BullMQ Job Queues in Node.js: Background Processing Done Right (2026 Guide)

Process background jobs reliably in Node.js with BullMQ. Covers job priorities, rate limiting, scheduled jobs, worker concurrency, and dead letter queue patterns.

Express Middleware Patterns: Composition, Error Handling, and Auth (2026 Guide)
node2026-03-21
Young GaoYoung Gao

Express Middleware Patterns: Composition, Error Handling, and Auth (2026 Guide)

Express middleware is more than app.use(). Learn composition patterns, async error boundaries, request validation chains, and auth middleware that scales.

Role-Based Access Control (RBAC) in Node.js: Beyond Simple Admin Checks (2026)
security2026-03-21
Young GaoYoung Gao

Role-Based Access Control (RBAC) in Node.js: Beyond Simple Admin Checks (2026)

Role-Based Access Control (RBAC) in Node.js: Beyond Simple Admin Checks Most apps start...

Mantine List View Table - From Table to Finder
react2026-03-21
Giovambattista FazioliGiovambattista Fazioli

Mantine List View Table - From Table to Finder

Row selection, keyboard navigation, context menus, column visibility, dual resize modes, and 6...

iterflow 1.0: What changed after someone pointed out JS already has lazy iterators
javascript2026-02-15
Gaurav SinghGaurav Singh

iterflow 1.0: What changed after someone pointed out JS already has lazy iterators

iterflow 1.0 shipped last week. It's a different library than what I wrote about in January. Back...

Testing Strategies for TypeScript APIs That Actually Catch Bugs (2026)
typescript2026-03-21
Young GaoYoung Gao

Testing Strategies for TypeScript APIs That Actually Catch Bugs (2026)

Unit tests pass but production breaks. Learn integration testing, contract testing, snapshot testing, and test architecture patterns that actually catch bugs.

Building a Type-Safe REST API with Zod, Express, and TypeScript (2026 Guide)
typescript2026-03-21
Young GaoYoung Gao

Building a Type-Safe REST API with Zod, Express, and TypeScript (2026 Guide)

Every REST API needs input validation and documentation. Most teams treat these as separate concerns...

My AI bot burned through my API budget overnight. So I built an open-source tool to make sure it never happens again.
ai2026-03-21
Albert AlovAlbert Alov

My AI bot burned through my API budget overnight. So I built an open-source tool to make sure it never happens again.

I run an autonomous AI news engine called El Sapo Cripto. It monitors 25+ RSS feeds, scores articles,...