[Solved] Given this middleware application code in a NestJS module:consumer.apply(AuthMiddleware).forRoutes('users');Which routes will have the AuthMiddleware applied? | NestJS

NestJS - Middleware

Given this middleware application code in a NestJS module:

consumer.apply(AuthMiddleware).forRoutes('users');

Which routes will have the AuthMiddleware applied?

AAll routes including '/users' and '/users/:id'

BOnly routes with path exactly '/users'

CAll routes in the application

DNo routes, because the path is invalid

Step-by-Step Solution

Solution:

Step 1: Understand forRoutes string behavior
Passing 'users' applies middleware to all routes starting with '/users', including parameters.
Step 2: Confirm middleware coverage
This includes '/users', '/users/123', '/users/profile', etc., not the entire app.
Final Answer:
All routes including '/users' and '/users/:id' -> Option A
Quick Check:
forRoutes('users') covers prefix routes [OK]

Quick Trick: forRoutes('path') applies middleware to that path and subpaths [OK]

Common Mistakes:

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