Boilerplate

A full-stack boilerplate combining Next.js App Router (frontend) with Fastify (backend), using Knex.js as the Query Builder and PostgreSQL as the database. This version introduces a Simple Error Handling strategy focused on minimalism and clarity, eliminating the need for try-catch blocks in handlers. Errors are managed globally via Fastify’s setErrorHandler with a chained error type check approach.

Features

• Next.js App Router for modern frontend development.
• Fastify backend for high-performance APIs.
• Knex.js as the Query Builder for PostgreSQL.
• PostgreSQL as the primary database.
• Simple Error Handling using setErrorHandler with chained error-type checking.
• No try-catch blocks in route handlers — less boilerplate, cleaner logic.
• Standardized API responses for both expected and unexpected errors.
• Monorepo structure for modularity and maintainability.
• Dedicated db package for schema, migrations, and queries.
• Dedicated ui package for reusable frontend components.
• TypeScript support for type-safe development.

Use Case

Perfect for developers who prefer leaner backend code without sacrificing clarity or control. This boilerplate is ideal for building SaaS products, internal systems, or API-first applications where error handling is centralized and non-intrusive. 🚀