Which of the following is the correct syntax to apply ValidationPipe to a single route handler in NestJS?

easy📝 Syntax Q3 of 15

NestJS - Pipes

Which of the following is the correct syntax to apply ValidationPipe to a single route handler in NestJS?

A@UsePipes(new ValidationPipe())\n@Get()\ngetData() {}

B@UseGuards(new ValidationPipe())\n@Get()\ngetData() {}

C@UseFilters(new ValidationPipe())\n@Get()\ngetData() {}

D@UseInterceptors(new ValidationPipe())\n@Get()\ngetData() {}

Step-by-Step Solution

Solution:

Step 1: Recall the decorator for pipes
ValidationPipe is applied using the @UsePipes() decorator on route handlers or controllers.
Step 2: Eliminate other decorators
@UseGuards is for auth, @UseFilters for exceptions, @UseInterceptors for interceptors, so they are incorrect here.
Final Answer:
@UsePipes(new ValidationPipe())\n@Get()\ngetData() {} -> Option A
Quick Check:
ValidationPipe on route = @UsePipes [OK]

Quick Trick: Use @UsePipes to apply ValidationPipe on routes [OK]

Common Mistakes:

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