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Core Architecture
Request Pipeline
Data and Messaging
Guard
Learn Guard in NestJS through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.
12 min read
•
Intermediate
nestjs-014.ts
typescript
@Injectable()
class ApiKeyGuard implements CanActivate { canActivate(c:ExecutionContext){ return c.switchToHttp().getRequest().headers["x-api-key"]==="demo"; } }What to watch
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