@rytass/member-base-nestjs-module/decorators/has-permission.decorator.js

Rytass Member System NestJS Base Module

import { createParamDecorator } from '@nestjs/common';
import { getRequestFromContext } from '../utils/get-request-from-context.js';
import { normalizeCasbinDecision } from '../utils/normalize-casbin-decision.js';

const HasPermission = createParamDecorator(([object, action], context)=>{
    const request = getRequestFromContext(context);
    if (!request.payload || !request.enforcer || !request.casbinPermissionChecker) return false;
    const result = request.casbinPermissionChecker({
        enforcer: request.enforcer,
        payload: request.payload,
        actions: [
            [
                object,
                action
            ]
        ],
        context,
        request
    });
    if (result instanceof Promise) {
        return result.then((resolved)=>normalizeCasbinDecision(resolved).allowed);
    }
    return normalizeCasbinDecision(result).allowed;
});

export { HasPermission };