NestJS - Middleware
You want to apply a middleware only to POST requests on the '/login' route. How can you achieve this in NestJS?
You want to apply a middleware only to POST requests on the '/login' route. How can you achieve this in NestJS?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand method-specific middleware application
In NestJS, you can specify route and HTTP method using an object withpathandmethodinforRoutes.Step 2: Evaluate options
Use consumer.apply(MyMiddleware).forRoutes({ path: '/login', method: RequestMethod.POST }) correctly uses{ path: '/login', method: RequestMethod.POST }. Use consumer.apply(MyMiddleware).forRoutes('/login') and check method inside middleware applies middleware to all methods on '/login', requiring manual filtering. Apply middleware globally and filter POST requests inside middleware applies globally, which is less efficient. NestJS does not support method-specific middleware is false.Final Answer:
Use consumer.apply(MyMiddleware).forRoutes({ path: '/login', method: RequestMethod.POST }) -> Option BQuick Check:
Use forRoutes with path and method object [OK]
Quick Trick: Use forRoutes with path and method object for specific HTTP verbs [OK]
Common Mistakes:
- Applying middleware to all methods unintentionally
- Not importing RequestMethod enum
- Assuming method-specific middleware is unsupported
Master "Middleware" in NestJS
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