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⚡ AI Lessons
Dev.to · Siddhant Jain
🧠 Large Language Models
⚡ AI Lesson
3mo ago
The “Token Bleed”: How to Operate LLMs Without Bankrupting Yourself
A single bug or malicious user can still drain $1,000 of OpenAI credits in an hour. Learn the four core guardrails—per‑user budgets, circuit breakers, idempoten
Dev.to · Siddhant Jain
⚡ AI Lesson
3mo ago
Why Your SaaS Node Backend Will Fail at 10k Requests/Minute (and How to Stress‑Proof It Without Rewriting)
Naïve Node.js SaaS backends silently fail at scale: jobs vanish on deploy, webhook duplicates double‑bill customers, and MFA state drifts. See exactly what brea
Dev.to · Siddhant Jain
⚡ AI Lesson
4mo ago
The Silent Job Loss: Why Your Node.js SaaS Needs a Persistent Task Queue
Memory-based jobs die on deploy, causing silent failures. Stripe webhook fires → report vanishes → user pays, gets nothing. Here is how we use Redis Lua for ato
Dev.to · Siddhant Jain
⚡ AI Lesson
4mo ago
Why Your "Vibe Coded" SaaS Will Fail at 100 Users (and How to Fix It)
Stop AI‑generated spaghetti. Learn the 8‑layer architecture and failure‑safety patterns (idempotency, webhook dedup, retry‑safe jobs, per‑user LLM budgets) that
Dev.to · Siddhant Jain
📣 Digital Marketing & Growth
⚡ AI Lesson
4mo ago
The Stripe webhook race condition that silently charged users twice (and the Node.js fix)
Most Node.js starters treat webhooks like regular requests. Here is how a common race condition leads to double-billing and how to fix it with atomic idempotenc
Dev.to · Siddhant Jain
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
Why I built a backend-only SaaS starter kit when everyone else builds full-stack
Every SaaS starter kit I looked at came with a frontend attached. ShipFast. MakerKit. SupaStarter....
Dev.to · Siddhant Jain
⚡ AI Lesson
4mo ago
How I Structured a Production-Ready Node.js Backend for SaaS
Most SaaS projects start the same way. You scaffold a Node.js backend, then gradually add...
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