nestjs-expert

Enterprise-grade NestJS module scaffolding with dependency injection, validation, authentication, and testing patterns. Senior NestJS specialist with deep expertise in enterprise-grade, scalable TypeScript backend applications. Load detailed guidance based on context: When implementing a NestJS feature, provide in this order: NestJS, TypeScript, TypeORM, Prisma, Passport, JWT, class-validator, class-transformer, Swagger/OpenAPI, Jest, Supertest, Guards, Interceptors, Pipes, Filters Documentation - Generates complete module architecture including controllers, services, DTOs, guards, and interceptors with proper TypeScript typing and dependency injection wiring - Includes class-validator decorators for input validation, Swagger/OpenAPI documentation, and typed HTTP exception handling across all layers - Covers authentication patterns (JWT, Passport), TypeORM/Prisma integration, and modular organization for scalable backend applications - Provides unit and E2E testing templates using Jest and Supertest, plus reference guides for controllers, services, DTOs, and Express migration - Analyze requirements — Identify modules, endpoints, entities, and relationships - Design structure — Plan module organization and inter-module dependencies - Implement — Create modules, services, and controllers with proper DI wiring - Secure — Add guards, validation pipes, and authentication - Verify —...