redirect_uri_mismatch The redirect URI in the request, http://localhost:4500/auth/auth/google/callback, does not match

[yilmazbingo]

Google is seeing callback url as "http://localhost:4500/auth/auth/google/callback" //double "auth"

this is the callback url I set on app settings.
http://localhost:4500/auth/google/callback
this is passport configuration:

passport.use(
  new GoogleStrategy.Strategy(
    {
      clientID: process.env.GOOGLE_CLIENT_ID!, // "!" is typescript character
      clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
      callbackURL: "auth/google/callback",
    },
    // this is called when user is redirected back to our app
    async (accessToken, refreshToken, profile, done) => {
      const existingUser = await User.findOne({ googleId: profile.id });
      if (existingUser) {
        done(undefined, existingUser);
      }
      const user = await new User({ googleId: profile.id }).save();
      done(undefined, user);
    }
  )
);

here are the routtes:

export const authRoutes = (app: Application) => {
  //with passing "google" passport knows that it will use GoogleStrategy
  app.get(
    "/auth/google",
    passport.authenticate("google", { scope: ["profile", "email"] }),
    (req, res) => {
      res.redirect("/");
    }
  );

  // passport sees the code here and it knows that it has to use the code to get user
  app.get("/auth/google/callback", passport.authenticate("google"));
  app.get("/auth/current_user", (req: Request, res: Response) => {
    res.send(req.user);
  });
  app.get("/auth/logout", (req: Request, res: Response) => {
    req.logout();
    res.json({ user: req.user });
  });
};

### Environment

* Operating System: Kali Linux 2020
* Node version:  -v10.21.0 

 "passport": "^0.4.1",
    "passport-google-oauth20": "^2.0.0",

![google-oauth](https://user-images.githubusercontent.com/47233790/99930825-83e5a200-2d20-11eb-9021-443d82eb40d5.png)

[lily-law]

Hey, have you added http://localhost:4500/auth/google/callback in the Authorised redirect URIs in your console.developers.google.com?

[bismitpanda]

You need to provide a public IP. I don't think google can access localhost.
Try providing IP like 127.0.0.1:8080 and adding it to authorized URIs in google dev console.
Also try
callbackURL : '/auth/google/callback'

[Ritik0602]

Your url contains two levels of auth.
You have accidently added : http://localhost:4500/auth/auth/google/callback
Instead it should be http://localhost:4500/auth/google/callback

[Venryx]

Also try
callbackURL : '/auth/google/callback'

+1. I'm guessing that is the issue. (leaving off the starting / can, depending on the context/parser, result in it viewing it as a "relative to current url" path, in which case it would take the /auth/google path and find the relative auth... as replacing the right-most path-segment)

[ellenhutchings]

I'm getting this with '/login/google/callback' from a https site. The redirect_uri is only http?

I can't add the http version as an authorized redirect as it's in production and Google says:

Invalid Redirect: This app has a publishing status of "In production". URI must use https:// as the scheme.