Response Structure - Nestjs

// main.ts
app.useGlobalInterceptors(new TransformResponseInterceptor());

// transformResponse.interceptor.ts
import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';

@Injectable()
export class TransformResponseInterceptor implements NestInterceptor {
  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
    return next.handle().pipe(
      map((data) => {
        console.log(data); // maintained
        if (data?.options?.isPagination) {
          data.isPagination = undefined;
        }
        
        return { statusCode: 200, responseCode: 1, data, meta };
      }),
    );
  }
}

import {
  ExceptionFilter,
  Catch,
  ArgumentsHost,
  HttpException,
  HttpStatus,
} from '@nestjs/common';
import { Request, Response } from 'express';

@Catch(BadRequestException)
export class BadRequestFilter implements ExceptionFilter {
  catch(exception: HttpException, host: ArgumentsHost) {
    const ctx = host.switchToHttp();
    const response = ctx.getResponse<Response>();
    const status = exception.getStatus();
    const message = exception.message;

    response.status(status).json({
      data: {
        statusCode: status,
        message: message,
      },
      meta: {},
    });
  }
}