Shulou(Shulou.com)06/01 Report--

This article mainly introduces the relevant knowledge of "how to make login interceptor in node.js". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to make login interceptor in node.js" can help you solve the problem.

Interceptors can be seen everywhere in web development, such as the management background of the site, not everyone can enter, so you need to make an interceptor and friendly jump to the prompt page.

Let's simply implement a way to determine whether the user logged in successfully or not, and the unsuccessful user is automatically redirected to the login page.

First, we implement a filter.

Exports.checkAuth=function (req, res, next) {var token = req.signedCookies.token; if (token & & req.session.user & & req.session.user.token = token) next (); else if (token) {/ / if invalid token or no session, should rebuild var authInfo = user.getAuthInfo (token) If (authInfo & & authInfo.isAuth) {req.session.user = {userID: authInfo.userID, userName: authInfo.userName, isAuth: authInfo.isAuth, token: token} next ();} else res.redirect ('/ user/login');} else res.redirect ('/ user/login');}

Then define the route and add the filter

Module.exports = function (app) {app.get ('/ user/blogList',pageAdmin.checkAuth, pageAdmin.pageList); app.all ('/ user/post',pageAdmin.checkAuth, pageAdmin.pagePost);}

The above route definition receives three parameters, the first is the url path of the request, and the second is the filter. If the filter is satisfied, the next step is to enter the route processing function, and if it is not satisfied, it will not go to the later route definition function.

This is the end of the introduction to "how to make a login interceptor for node.js". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.