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Lakin Adeyemo
Lakin Adeyemo

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#100DaysOfNodeJS: Building Production-Grade Backends From Scratch

Starting tomorrow, I'm grinding through 100 days of raw backend development—no tutorials, no handholding. Just Node.js, PostgreSQL, and the ugly realities of building systems that scale.

The Challenge

100 days, 100 commits: Atomic backend projects pushed to https://github.com/joshylak/100-backend-projects

Tech Stack:

Sample Battle Plan

Phase 1: Core Systems (Days 1-30)

Day 1: Bare-metal HTTP server (no Express)

Day 12: Connection pool leak detector

Day 23: JWT blacklist with Redis Lua scripts

Phase 2: Pain Points (Days 31-70)

Day 37: N+1 query exterminator

Day 45: Distributed deadlock simulator

Day 63: Postgres failover with pg-rewind

Phase 3: Bloody Edge Cases (Days 71-100)

Day 82: WebSocket flood attack mitigator

Day 91: CTE-based RBAC permission tree

Day 100: Zero-downtime schema migrations

Why This Matters

No ORMs allowed: Raw SQL or bust.

Instrumentation-first: Every service gets Prometheus metrics.

Failure-driven: I'll intentionally build:

🔗 https://github.com/joshylak/100-backend-projects
(Open issues for brutal code reviews.)

For Developers

Call me out if you see await in loops or JSON.parse() without try/catch

Suggest a nightmare scenario (e.g., "Implement Serializable isolation with retries")

Steal the vicious parts: Transaction retry logic, prepared statement caches
)

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