How to wrap multi-table writes in a Drizzle ORM transaction, pass the tx object into your repository layer, and keep side effects outside the commit -- the full pattern for atomic SaaS operations.
How to add sliding-window rate limiting to Next.js App Router API routes -- a Drizzle ORM implementation that works across serverless instances and integrates cleanly with JWT auth.
How to run background jobs in a Next.js SaaS on Vercel -- configuring vercel.json cron, writing a thin route handler that delegates to a service, and securing the endpoint so only Vercel can trigger it.
How to add API key authentication to a Next.js SaaS -- generating keys with crypto.randomBytes, storing only the SHA-256 hash in Drizzle ORM, and validating them in route handlers without ever persisting the plaintext secret.
How to validate all environment variables at startup using Zod in a Next.js App Router SaaS -- a pattern that makes missing secrets fail immediately with a clear error instead of crashing mid-request.
How to add full-text search to a Next.js SaaS using PostgreSQL tsvector, Drizzle ORM sql templates, a GIN expression index, and a URL-driven server component that composes cleanly with pagination.