nodejs-backend

Structure a Node.js backend using an organized directory layout that isolates business logic from framework code. This clean architecture separates routes, domain errors, and repositories to ensure maintainable API design and scalable application growth.

Handle API errors in Express.js by implementing robust domain error management alongside global error handlers. This pattern catches domain-specific exceptions and translates them into consistent HTTP responses without crashing the Node.js server process.

Implement the repository pattern in Node.js by creating data access classes that manage database transactions and queries. This abstracts database integration details from your core domain logic, making your backend code easier to test and maintain.

Yes, the blueprint supports dependency injection for API routes. It illustrates effective patterns for injecting repository dependencies directly into Express.js or Fastify route handlers to decouple request handling from database implementation details.

Common Node.js backend anti-patterns include mixing business logic with route handlers, skipping configuration validation, and ignoring integration tests. Avoiding these pitfalls ensures your backend maintains a clean architecture and reliable database transaction management.