javascript - User is undefined on the context.switchToHttp().getRequest() nestjs - Stack Overflow

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I'm new to nestJs and I needed to add role based access to the application so I followed the documentation but in the execution context user doesn't exist. I can't seems to find the problem here's the github repo if you need to seem more code:

roles.guard.ts

import { Injectable, CanActivate, ExecutionContext } from '@nestjs/mon';
import { Reflector } from '@nestjs/core';
import { ROLES_KEY } from 'src/decorators/roles.decorator';
import Role from 'src/util/enums/role.enum';

@Injectable()
export class RolesGuard implements CanActivate {
  constructor(private reflector: Reflector) {}

  canActivate(context: ExecutionContext): boolean {
    const requiredRoles = this.reflector.getAllAndOverride<Role[]>(ROLES_KEY, [
      context.getHandler(),
      context.getClass(),
    ]);
    if (!requiredRoles) {
      return true;
    }
    const { user } = context.switchToHttp().getRequest();
    console.log(context.switchToHttp().getRequest().req);

    return requiredRoles.some((role) => user.type === role);
  }
}

app.controller.ts

  @UseGuards(JwtAuthGuard, RolesGuard)
  @Get('me/business')
  @Roles(Role.ADMIN)
  getBusiness(@Request() req) {
    return this.usersService.getUserBusiness(req.user.id);
  }

I'm new to nestJs and I needed to add role based access to the application so I followed the documentation but in the execution context user doesn't exist. I can't seems to find the problem here's the github repo if you need to seem more code: https://github./anjula-sack/slinc-backend

roles.guard.ts

import { Injectable, CanActivate, ExecutionContext } from '@nestjs/mon';
import { Reflector } from '@nestjs/core';
import { ROLES_KEY } from 'src/decorators/roles.decorator';
import Role from 'src/util/enums/role.enum';

@Injectable()
export class RolesGuard implements CanActivate {
  constructor(private reflector: Reflector) {}

  canActivate(context: ExecutionContext): boolean {
    const requiredRoles = this.reflector.getAllAndOverride<Role[]>(ROLES_KEY, [
      context.getHandler(),
      context.getClass(),
    ]);
    if (!requiredRoles) {
      return true;
    }
    const { user } = context.switchToHttp().getRequest();
    console.log(context.switchToHttp().getRequest().req);

    return requiredRoles.some((role) => user.type === role);
  }
}

app.controller.ts

  @UseGuards(JwtAuthGuard, RolesGuard)
  @Get('me/business')
  @Roles(Role.ADMIN)
  getBusiness(@Request() req) {
    return this.usersService.getUserBusiness(req.user.id);
  }

• javascript
• node.js
• jwt
• nestjs
• roles

Share Improve this question Follow asked May 9, 2021 at 3:09 Anjula SamarasingheAnjula Samarasinghe 23711 gold badge55 silver badges1313 bronze badges 4

• Do you have the RolesGuard bound globally by chance? – Jay McDoniel Commented May 9, 2021 at 3:22
• yeah it's in the app.module.ts – Anjula Samarasinghe Commented May 9, 2021 at 3:31
• Could you share the documentation you followed? Also, could you explain how you send the user in the request? Is it inside the header or the body? I tried the github URL you posted, but I guess it is a private repository so I can't see – Eranga Heshan Commented May 9, 2021 at 4:52
• can you check now? I made it public @ErangaHeshan – Anjula Samarasinghe Commented May 9, 2021 at 5:00

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1 Answer 1

Sorted by: Reset to default 7

From the code, I think you are mixing global and local guard

In app.module.ts, the below code is for registering global guard. and app.useGlobalGuard() should be used together if you want to apply guard globally.

// Remove the following code in app.module.ts
{
    provide: APP_GUARD,
    useClass: RolesGuard,
}

But your intention should be building a local role guard, so please remove the above code and the request user will work.

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