[Solved] What is the primary role of a FileValidationPipe in a NestJS application? — Ans: To check if uploaded files meet specific criteria like size and type | NestJS

NestJS - Pipes

What is the primary role of a FileValidationPipe in a NestJS application?

ATo check if uploaded files meet specific criteria like size and type

BTo store uploaded files on the server

CTo encrypt files before saving

DTo generate file download links automatically

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of validation pipes in NestJS
Validation pipes are used to check and enforce rules on incoming data, including files.
Step 2: Identify what a FileValidationPipe specifically does
It checks uploaded files for conditions like allowed file types and maximum size before processing.
Final Answer:
To check if uploaded files meet specific criteria like size and type -> Option A
Quick Check:
File validation = Check file criteria [OK]

Quick Trick: Validation pipes check file rules before processing [OK]

Common Mistakes:

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What is the primary role of a FileValidationPipe in a NestJS application?