nestjs▌

Guidelines by Alberto Basalo for developing clean NestJS APIs using TypeScript. These rules emphasize strong typing, clean code principles, and architectural best practices.

Enterprise-grade Nest.js architecture guidance covering modules, dependency injection, testing, databases, and authentication. \n \n Diagnoses and resolves dependency injection issues, circular dependencies, and module configuration problems with proven solutions from 500+ real GitHub issues and Stack Overflow threads \n Covers full request lifecycle: middleware, guards, interceptors, pipes, and exception filters with correct execution order and async handling \n Provides testing strategies for