how to redirect to another app after login?-CodePudding

I have a React js application "login", which makes a request to the backend and gets the jwt. I need that after the authentication is done, the "login" application redirects to another react application (hosted on another server) which needs to use the jwt

CodePudding user response：

You can redirect a user to another page via the res.redirect method of ExpressJS.

So for example after a user logged in to your backend, you can do something like this:

app.all('/login', (req, res) => {
    let isAuthenticated = tryAuthenticate(req);
    
    if (isAuthenticated)
        return res.redirect('/anotherApplicationOnAnotherServer');
    
    else
        return res.redirect('/login');
});

CodePudding user response：

Framework-agnostic way

Whenever you get your jwt from the backend you call this to redirect:

window.location.href = `https://path-to-another-app?token=${jwt}`;

Then, at the target app you can get your token like this:

const url = new URL(window.location.href);
const jwt = url.searchParams.get("token");