Blog — Page 47 of 53
Browsing page 47 of 53 — 634 articles and counting.
Designing a Leaderboard System: Sorted Sets, Skip Lists, and Real-Time Rankings at Scale
A deep-dive into leaderboard system design for senior engineers. Covers the limits of SQL ORDER BY, Redis sorted set internals and skip list mechanics, sharded leaderboards for massive scale, time-windowed rankings, and tie-breaking strategies with TypeScript examples throughout.
Designing a Workflow Engine: State Machines, DAGs, and Durable Execution for Complex Business Logic
Most teams model multi-step business logic as ad-hoc if/else chains and cron jobs, then spend months debugging skipped steps, duplicate side effects, and invisible process state. This article covers the three main approaches to workflow orchestration: state machines, DAG-based engines, and durable execution frameworks, with TypeScript implementations and a decision framework for choosing between them.
Leader Election in Distributed Systems: Algorithms, Fencing Tokens, and Production Pitfalls
A production guide to leader election: compare Raft-style consensus, bully algorithm, and lease-based approaches, implement lease-based election with Redis in TypeScript, understand fencing tokens, handle split-brain scenarios, and choose the right algorithm for your constraints.
Cron Jobs in Serverless Environments: Cloudflare Cron Triggers, AWS EventBridge, and Inngest Compared
Serverless platforms don't have a persistent process to run crontab. This guide compares Cloudflare Cron Triggers, AWS EventBridge + Lambda, and Inngest on scheduling semantics, failure handling, observability, and cost, with TypeScript implementations for each.
Middleware Patterns in Modern Web Frameworks: Hono, Next.js, and Express Compared
A deep comparison of middleware architecture across Express, Hono, and Next.js for TypeScript engineers. Covers composition models, type safety, common patterns like auth and rate limiting, production performance, and a framework decision guide.
OAuth 2.0 and OpenID Connect in Practice: Flows, PKCE, and Token Management in TypeScript
OAuth 2.0 is a delegation protocol, not an authentication protocol. This covers why both exist, the Authorization Code Flow with PKCE for SPAs and server apps, TypeScript implementation of token exchange and ID token validation, refresh token rotation, common security mistakes including implicit flow and localStorage, session management post-login, and a concrete guide to hosted providers vs rolling your own.
Graceful Shutdown in Node.js: Draining Connections, Finishing Jobs, and Avoiding Data Loss
Most guides show process.on('SIGTERM', () => process.exit()) and call it done. This guide covers the full shutdown lifecycle: signal handling, HTTP drain, database cleanup, job queue stop, health check integration, Kubernetes preStop hooks, timeout handling, and testing shutdown behavior in TypeScript.
How to Design a Rate Limiter: Algorithms, Distributed Coordination, and Production Pitfalls
A practical guide to rate limiter system design covering fixed window, sliding window, and token bucket algorithms with TypeScript implementations, Redis-based distributed coordination, and the production pitfalls most tutorials skip.
Choosing a Database for Your SaaS Startup: Postgres, PlanetScale, Neon, and Turso Compared
A practical comparison of database options for modern SaaS startups. Covers Postgres (self-managed and managed), PlanetScale, Neon, Turso, and Supabase across connection models, serverless compatibility, scaling characteristics, pricing at startup scale, and developer experience, with TypeScript examples using Drizzle ORM.
Trunk-Based Development vs GitFlow: Choosing a Branching Strategy That Ships
Most teams pick a branching strategy based on what they used at their last job. This guide compares trunk-based development and GitFlow head-to-head, covering tradeoffs for team size, release cadence, CI/CD maturity, and feature flag infrastructure, with TypeScript CI pipeline examples and a decision framework for startup teams.
Managing Technical Debt: A Practical Framework for Startup Engineering Teams
Most startup teams treat technical debt as a single category of bad code. It is not. This guide covers how to classify, quantify, and pay down debt strategically so you ship faster without accumulating the kind of debt that eventually stops a team cold.
Building a Real-Time Collaboration Engine: CRDTs, Operational Transform, and Conflict Resolution
Concurrent editing in distributed systems is hard to get right. This guide compares Operational Transform and CRDTs with honest tradeoffs, walks through a TypeScript CRDT implementation, and covers the production concerns that most tutorials skip: undo/redo, offline support, tombstone garbage collection, and awareness state.