NestJS - Guards
What will happen if a guard's
canActivate method returns a Promise that resolves to false?What will happen if a guard's canActivate method returns a Promise that resolves to false?
medium📝 component behavior Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand async return behavior
Returning a Promiseis allowed; the framework waits for resolution. Step 2: Interpret resolved value false
If the Promise resolves to false, the guard denies the request.Final Answer:
Request is denied and does not proceed -> Option AQuick Check:
Promise resolving false denies request [OK]
Quick Trick: Async canActivate false denies request [OK]
Common Mistakes:
- Thinking request proceeds despite false
- Expecting server crash on Promise
- Assuming indefinite delay
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