You want to measure the time taken by any request handler in your NestJS app. Which interceptor approach correctly adds this cross-cutting timing logic?

You want to measure the time taken by any request handler in your NestJS app. Which interceptor approach correctly adds this cross-cutting timing logic?

import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable, tap } from 'rxjs';

@Injectable()
export class TimingInterceptor implements NestInterceptor {
  intercept(context: ExecutionContext, next: CallHandler): Observable {
    const start = Date.now();
    return next.handle().pipe(
      tap(() => {
        const elapsed = Date.now() - start;
        console.log(`Request took ${elapsed}ms`);
      })
    );
  }
}