[Solved] What is the main purpose of a guard in NestJS when protecting routes? — Ans: To decide if a request can access a route based on custom logic | NestJS

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What is the main purpose of a guard in NestJS when protecting routes?

ATo decide if a request can access a route based on custom logic

BTo format the response data before sending it

CTo handle database connections automatically

DTo log every request made to the server

Step-by-Step Solution

Solution:

Step 1: Understand the role of guards
Guards in NestJS are designed to control access to routes by running custom logic before the route handler executes.
Step 2: Identify the correct purpose
Among the options, only deciding if a request can access a route matches the guard's role.
Final Answer:
To decide if a request can access a route based on custom logic -> Option A
Quick Check:
Guards control access = C [OK]

Quick Trick: Guards allow or block access before route runs [OK]

Common Mistakes:

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What is the main purpose of a guard in NestJS when protecting routes?