背景:为了注销用户,我需要访问位于 redisClient
中的对象 app.js
。如何从 2 级深度的模块访问 redisClient
?我不确定如何从它的下游返回到新版本的 redisClient
。
来自 app.js
const session = require('express-session');
const redis = require('redis');
const redisClient = redis.createClient();
const RedisStore = require('connect-redis')(session);
const myEndpoints = require('./controllers/my-endpoints');
app.use(myEndpoints);
来自 my-endpoints.js
const router = express.Router();
const someMiddleware = require('./some-middleware');
router.get('/logout', someMiddleware.logout);
module.exports = router;
来自 some-middleware.js
exports.logout = function(req, res) {
// uh oh I'm 2 layers deep. How do I get to redisClient from here?
redisClient.del(req.session.id, function(err, response) {
console.log(err);
});
req.session.destroy(function(error) {
if (error) res.clearCookie(process.env.SESSION_NAME);
res.redirect('/');
});
}
答案 0 :(得分:1)
基于 this answer,这是一个简单的修复。感谢给我指明方向的评论。
在 app.js 中:
app.set('referenceToRedisClient', redisClient);
在 some-middleware.js 中:
let redisClient = req.app.get('referenceToRedisClient');
await redisClient.del(req.session.id);