passport-github，req.query.redirect不正確

Question

我想重定向到我的自定義網址。 但是req.query.redirect未定義。

這裏是我的路線：

app.get('/auth/github', (req: Request, res: Response, next: NextFunction) => { 
    const redirect: string = encodeURIComponent(req.query.redirect); 
    let successRedirect: string; 
    if (redirect) { 
     successRedirect = `/auth/github/callback?redirect=${redirect}`; 
    } else { 
     successRedirect = '/auth/github/callback'; 
    } 
    passport.authenticate('github', { successRedirect })(req, res, next); 
    }); 

    app.get('/auth/github/callback', passport.authenticate('github', { 
    failureRedirect: '/login' 
    }), (req: Request, res: Response) => { 
    res.redirect(301, req.query.redirect || '/'); 
    }); 

successRedirect是/auth/github/callback?redirect=https%3A%2F%2Fwww.google.com

但是，當瀏覽到/auth/github/callback，

req.query爲{code: "bb7d0e867b3aa40f507f"}，

哪裏是我的req.query.redirect？我希望req.query.redirect是https%3A%2F%2Fwww.google.com。

Answer 1

據我所知，該護照將使用配置的策略，當它被實例化一個回調URL：

passport.use(new GitHubStrategy({ callbackURL : ... })) 

AFAIK，你不能動態地設置URL。

但是，可以存儲URL重定向到會話來代替：

app.get("/auth/github", (req: Request, res: Response, next: NextFunction) => { 
    req.session.redirect = req.query.redirect; 
    passport.authenticate("github")(req, res, next); 
}); 

app.get("/auth/github/callback", passport.authenticate("github", { 
    failureRedirect: "/login" 
    }), 
    (req: Request, res: Response) => { 
    res.redirect(301, req.session.redirect || "/"); 
    } 
); 

（未經測試）