nestjs-expert

To resolve Nest.js circular dependencies and provider scope conflicts, analyze your module boundaries and use forward references. This Skill diagnoses dependency injection issues and guides correct module configuration and provider exports.

Nest.js throws 'Cannot resolve dependencies' errors when providers are missing, incorrectly scoped, or not exported from their modules. This Skill debugs complex dependency injection problems by auditing module configuration and provider availability.

Effective unit and e2e testing for Nest.js APIs involves using Jest and Supertest to mock dependencies and validate endpoints. This Skill guides testing strategies to ensure robust backend service architecture.

Yes, this Skill assists with TypeORM and Mongoose integration in Nest.js architecture. It provides expert guidance for configuring database modules and ensuring maintainable backend service structures.

Passport.js authentication in Nest.js works by integrating with middleware and guards to validate requests and protect endpoints. This Skill helps configure authentication setups and resolve architecture decisions for secure APIs.

Yes, you can use this to optimize performance and debug dependency injection in Nest.js. It addresses complex architecture decisions, provider scope conflicts, and performance optimization for maintainable backend services.