如何自定义快递中的cookie？

Question

I am using express-session in my project:

app.use(session({
  name: "server-session-cookie-id",
  secret: 'express secret',
  maxAge: 1000 * 3600 * 24,
  saveUninitialized: true,
  resave: true,
  store: new RedisStore({client: redisClient, ttl: 260, db: 2}),
}))

express-session will generate a cookie named server-session-cookie-id when I first visit my application.

But, in my situation I want to append some information in cookie, something like this:

cookie['server-session-cookie-id'] + uuid

how can I change the cookie when the cookie first time generate?

---

EDIT

I think I ask the wrong question, what I want is when first visit my application(any page), I just create a cookie named uuid .

Answer 1

You can set a cookie using res.cookie and node-uuid .

npm install node-uuid --save

var uuid = require('uuid');

Then in your middleware of your main application just check for a user object:

app.use(function(req, res, next) {
    if (!req.user) {
        res.cookie('uuid', uuid.v4());
    }
    next();
}

Assuming you have a user object on the req request object in the case of using express-session with passport .

Answer 2

如果您真的只是想在其上设置uuid（如您在评论中所述）的新cookie，则可以在Express中执行此操作以响应任何传入请求：

res.cookie('uuid', uuid);