message: fix: added security to getCertificate
diff: @@ -80,6 +80,10 @@ export class CourseTakenV2Controller {
  }
  @Get('certificate/user/:userId/course/:courseId')
  + @UserIdParam('userId')
  + @UseGuards(StudentGuard)
  + @NeedRole(RoleEnum.STUDENT, RoleEnum.EXTERNAL)
  + @UseGuards(RoleGuard)
  public async getCertificate(
  @Param('userId') userId: string,
  @Param('courseId') courseId: number,
  