[Solved] Which of the following is the correct method signature for a guard's access check in NestJS? — Ans: canActivate(context: ExecutionContext): boolean | Promise | NestJS

NestJS - Guards

Which of the following is the correct method signature for a guard's access check in NestJS?

AhandleRequest(req: Request): boolean

BcheckAccess(context: Context): void

CcanActivate(context: ExecutionContext): boolean | Promise<boolean>

DvalidateUser(user: User): boolean

Step-by-Step Solution

Solution:

Step 1: Recall the guard interface method
The guard interface requires a canActivate method with ExecutionContext parameter returning boolean or Promise.
Step 2: Eliminate incorrect signatures
Other methods and parameters do not match the NestJS guard pattern.
Final Answer:
canActivate(context: ExecutionContext): boolean | Promise -> Option C
Quick Check:
Guard method signature = B [OK]

Quick Trick: Guard method is canActivate with ExecutionContext [OK]

Common Mistakes:

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Which of the following is the correct method signature for a guard's access check in NestJS?