Nest.js use custom value in the request object

Question

I create a guard that are like these

import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
import { AuthService } from './auth.service';

@Injectable()
export class CompanyGuard implements CanActivate {
  constructor(private readonly authService: AuthService) {}

  async canActivate(context: ExecutionContext): Promise<boolean> {
    const request = context.switchToHttp().getRequest();
    const token = request.headers['token'];
    if (token) {
      const company = await this.authService.validateToken(token);
      return company ? true : false;
    } else {
      return false;
    }
  }
}

I want to keep the value of company on the request object, so I can use it later on my controller. How to do that in Nest.js? I tried to look it on the docs, but I'm confused. Should I use the session or there are more simple way to do that?

Answer 1

You can just add the company to a custom field on the request. request.company = company and then in the controller you can use @Req() to get the request object and .company to get the company value. Or you could create a custom decorator to get the company for you.