NestJSX CRUD - restful role guard

restful-crud-role.guard.ts

import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common'
import { getAction } from '@nestjsx/crud'

@Injectable()
export class RestfulCrudRoleGuard implements CanActivate {
  
    constructor(
    //   private readonly reflector: Reflector,
      public restfulCrudOptions: {
          readAllRoles: string [],
          readOneRoles: string [],
          createOneRoles: string [],
          updateOneRoles: string [],
          deleteOneRoles: string [] 
      }
    ) {}

  canActivate(context: ExecutionContext): boolean {

    const request = context.switchToHttp().getRequest()
    const handler = context.getHandler()
    const controller = context.getClass()

    // const feature = getFeature(controller)
    const action = getAction(handler)  
    const user = request.user


    switch(action) {
        case 'Read-All' : {
            // Do user role checking here.
        }

        case 'Read-One' : {
            // Do user role checking here.
        } 

        case 'Create-One' : {
            // Do user role checking here.
        }

        case 'Update-One' : {
          // Do user role checking here.
        }

        case 'Delete-One' : {
          // Do user role checking here.
        }

        default : {
            return true
        }
    }

  }
}

Sample Use Case

@Controller('users')
@UseGuards(
    AuthGuard('jwt'),
    new RestfulCrudGuard({
        readAllRoles: ['admin'],
        readOneRoles: ['admin'],
        createOneRoles: ['admin'],
        updateOneRoles: ['admin'],
        deleteOneRoles: ['admin']
    })
)

export class UsersController implements CrudController<User>{