create-chuntianxiaozhu/template-nestjs-mysql/api/guards/role.guard.ts

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import { CanActivate, ExecutionContext, Injectable } from '@nestjs/common';
import { Reflector } from '@nestjs/core';
import { ROLES_KEY, RoleEnum } from '../utils/constants';

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

  canActivate(context: ExecutionContext): boolean {
    const requiredRoles = this.reflector.getAllAndOverride<RoleEnum[]>(
      ROLES_KEY,
      [context.getHandler(), context.getClass()],
    );
    if (!requiredRoles) {
      return true;
    }
    const { user } = context.switchToHttp().getRequest();
    if (user.roles?.includes(RoleEnum.SuperAdmin)) {
      // 如果是超级管理员直接返回true
      return true;
    }
    return requiredRoles.some((role) => user.roles?.includes(role));
  }
}