Patterns

Database connection pooling for serverless and edge environments. Prevents connection exhaustion and handles cold starts gracefully.

Configure Prisma for edge runtime with Accelerate connection pooling.

Type-safe Drizzle ORM setup with migrations for PostgreSQL.

Production-ready OAuth authentication with Auth.js (NextAuth v5). Includes GitHub and Google providers with database session storage.

Secure session handling with database storage and automatic cleanup.

Role-based access control with permissions, roles, and middleware.

API rate limiting with sliding window algorithm using Upstash Redis.

Type-safe request/response validation with Zod schemas.

Consistent error handling with custom error classes and structured responses.

Unit and integration testing with Vitest and React Testing Library.

End-to-end testing with Playwright and page object patterns.

API mocking with Mock Service Worker for tests and development.

React component testing with Testing Library, user events, and accessibility testing.

Redis caching with Upstash. Includes cache utilities, automatic serialization, and cache invalidation patterns.

Next.js built-in caching with unstable_cache, revalidatePath, and revalidateTag.

Simple LRU in-memory caching for serverless. No external dependencies.

Transactional email with Resend and React Email templates.

Free email sending with Nodemailer. Supports SMTP, Gmail, and other providers.

Cost-effective email at scale with AWS Simple Email Service.

Stripe integration with checkout sessions, webhook handling, and subscription management.

Payment integration with LemonSqueezy. Includes checkout, webhooks, and subscriptions with built-in tax handling.

Metered billing with Stripe. Track usage, report to Stripe, and charge customers based on consumption.

Error tracking and performance monitoring with Sentry. Includes source maps and custom context.

Open standard observability with OpenTelemetry. Works with Jaeger, Zipkin, and commercial backends.

Structured JSON logging with Pino. Fast, low-overhead logging with log levels and context.

Runtime-validated environment variables with Zod and TypeScript.

Secure secrets handling with encryption at rest across environments.

Multi-stage Docker builds optimized for Next.js.

CI/CD pipelines for testing, building, and deploying.

Vercel deployment configuration with edge functions, environment setup, and build optimizations.