NestJS - Guards
You want to apply a guard that blocks access to all routes except one specific route in a controller. Which approach correctly uses guard binding levels to achieve this?
You want to apply a guard that blocks access to all routes except one specific route in a controller. Which approach correctly uses guard binding levels to achieve this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand guard override behavior
Controller-level guards apply to all routes in that controller but can be overridden by route-level guards.Step 2: Apply guard to block all except one route
Binding the guard on the controller blocks all routes; then a route-level guard on the exception route can allow access.Final Answer:
Bind the guard on the controller and override it with a route-level guard that allows the exception. -> Option CQuick Check:
Controller guard + route override = selective access [OK]
Quick Trick: Use controller guard plus route guard override for exceptions [OK]
Common Mistakes:
- Trying to remove global guards per route (not supported)
- Binding guard only on exception route (wrong logic)
- Assuming global guard can be skipped per route
Master "Guards" in NestJS
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