import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common'; import { Observable } from 'rxjs'; import { map } from 'rxjs/operators'; @Injectable() export class ResponseInterceptor implements NestInterceptor { intercept(context: ExecutionContext, next: CallHandler): Observable { return next.handle().pipe( map((data) => ({ success: true, data })) ); } }