nodejs-backend-patterns

Structure a Node.js backend using layered architecture and dependency injection to separate concerns. This Skill provides patterns for Express and Fastify to build maintainable, scalable server-side applications with distinct routing, business logic, and data access layers.

Implement secure authentication middleware in a Node.js API using JSON Web Tokens (jsonwebtoken) and bcrypt for password hashing. This Skill demonstrates applying these dependencies within middleware layers to protect routes and validate user identities securely.

Error handling in Node.js microservices works by implementing custom error classes and a global error handler. This Skill provides patterns to catch, standardize, and log errors consistently across your REST API, preventing unhandled exceptions and improving debugging.

Yes, you can use both PostgreSQL and MongoDB in the same Node.js backend architecture. This Skill demonstrates database integration patterns utilizing pg for PostgreSQL and mongoose for MongoDB, allowing flexible data persistence strategies within your microservices.

Configure rate limiting and logging for a Fastify server by integrating rate-limit-redis for distributed throttling and pino-pretty for structured logs. This Skill covers applying these middleware patterns to secure and monitor your API traffic effectively.

You need Zod for API request validation in Node.js to ensure incoming data matches expected schemas before processing. This Skill incorporates Zod within its middleware patterns to validate payloads, preventing invalid data from reaching your core business logic.