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nestjs-expert

Provide expert Nest.js guidance for architecture, dependency injection, and testing.

Updated Dec 5, 2025
Search Tags:#typescript#testing#architecture#middleware#nestjs#passport#dependency-injection
One-click install
npx skills add https://github.com/404-Profit-Not-Found/neural-ticker-core --skill nestjs-expert-404-profit-not-found
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: nestjs-expert
Source: https://github.com/404-Profit-Not-Found/neural-ticker-core/tree/main/.agent/skills/nestjs
Command: npx skills add https://github.com/404-Profit-Not-Found/neural-ticker-core --skill nestjs-expert-404-profit-not-found

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides expert Nest.js guidance to design, optimize, and troubleshoot scalable Nest.js applications.

Core Features & Use Cases

  • Architectural design and module boundaries for Nest.js applications.
  • Dependency injection patterns and provider scope management to avoid circular dependencies.
  • Middleware, guards, and interceptors to control request lifecycles and security concerns.
  • Testing strategies with Jest and Supertest for unit and integration tests.
  • TypeORM/Mongoose integration and Passport.js authentication configurations.
  • Performance optimization and debugging for complex dependency graphs.

Quick Start

Provide a Nest.js project and ask the Nest.js Expert to audit architecture, DI, middleware, testing, and authentication. Then implement the recommended changes and iterate.

Frequently Asked Questions about nestjs-expert

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fix circular dependencies in Nest.js dependency injection?▼

Nest.js module boundaries define your application's architecture by grouping related providers and controllers. Proper module separation ensures scalable dependency injection, prevents circular dependencies, and maintains clean request lifecycle management across your application.

What is the best way to test Nest.js middleware and guards?▼

To configure Passport.js authentication in Nest.js, implement custom guards and interceptors to control request lifecycles. You integrate Passport strategies within your modules to secure endpoints and deliver maintainable, authenticated access to your application routes.

Does this work with TypeORM and Mongoose integration?▼

Yes, it works with TypeORM and Mongoose integration. You can configure database connections within your module architecture, optimize performance for complex dependency graphs, and troubleshoot data persistence issues across both relational and document databases.

Why does my Nest.js interceptor not intercept requests correctly?▼

To set up Jest and Supertest in Nest.js, configure your testing environment to compile TypeScript and bootstrap the application module. You then write integration tests to simulate HTTP requests and verify endpoint behavior, delivering reliable test coverage.

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