Can I use this for JWT authentication?

Absolutely. The skill includes standardized patterns for extracting, verifying, and attaching JWT payloads to the request object for use in downstream logic.

Does this skill support Role-Based Access Control (RBAC)?

Yes, it provides implementation patterns using the Reflector and custom decorators to enforce roles like Admin, Moderator, and User across controllers and specific handlers.

How do the response transformation interceptors work?

They wrap your controller's return data in a consistent object structure, typically adding fields like timestamps, request paths, and standardized status messages.

What is the difference between a Guard and an Interceptor in this skill?

Guards are primarily used for authorization and determining if a request should be handled, while Interceptors are used for transforming the request/response stream, adding logging, or handling cross-cutting concerns during the execution cycle.

NestJS Guards & Interceptors

Name: NestJS Guards & Interceptors
Author: TheBushidoCollective

byTheBushidoCollective

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API Development

Implements secure authentication guards and powerful request-response interceptors for NestJS applications.

About

This skill provides specialized patterns and best practices for managing cross-cutting concerns in NestJS. It enables Claude to implement robust security measures including JWT, session, and API key authentication guards, alongside granular Role-Based Access Control (RBAC). Additionally, it provides templates for interceptors that handle request/response transformation, advanced logging, and performance monitoring, ensuring your backend architecture remains consistent, secure, and observable.

Key Features

Standardized API response transformation and metadata wrapping
Resource ownership validation and context-aware request processing
Multi-strategy authentication including JWT, Session, and API Keys
Advanced request logging and performance monitoring interceptors
Granular RBAC and permission-based authorization patterns
72 GitHub stars

Use Cases

Adding global performance monitoring and audit logging to existing NestJS controllers
Standardizing API responses across an entire microservice architecture for consistent frontend consumption
Implementing complex authorization logic based on user roles and specific resource ownership

About

Key Features

Standardized API response transformation and metadata wrapping
Resource ownership validation and context-aware request processing
Multi-strategy authentication including JWT, Session, and API Keys
Advanced request logging and performance monitoring interceptors
Granular RBAC and permission-based authorization patterns
72 GitHub stars

Use Cases

Adding global performance monitoring and audit logging to existing NestJS controllers
Standardizing API responses across an entire microservice architecture for consistent frontend consumption
Implementing complex authorization logic based on user roles and specific resource ownership