invalid_grant issue in GoogleStrategy using Passport, Fastify

Question

I'm using passport.js to use google OAuth in my application. I'm using Nodejs, Fastify. I'm getting this response while I'm trying to log in. I tried refreshing Secret, Client ID by deleting and making new Credentials in Google Cloud Console. Nothing worked.

I'm getting this

"name":"TokenError","code":"invalid_grant","status":500},"msg":"Bad Request"

Help me with this.

Thank You in advance.

Fastify log here:

{"level":50,"time":1635763592399,"pid":16516,"hostname":"DESKTOP-7CKECCL","reqId":"req-4","req":{"method":"GET","url":"/google/callback?code=4%2F0AX4XfWg3Y9a6aUNaUE7raazx5I9YDRxuQfkYATW5RT6gRe_prB12Orc-DM5D21xlAM8CbQ&scope=email+profile+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.profile+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.email+openid&authuser=0&prompt=consent","hostname":"localhost:8070","remoteAddress":"127.0.0.1","remotePort":4868},"res":{"statusCode":500},"err":{"type":"TokenError","message":"Bad Request","stack":"TokenError: Bad Request\n at Strategy.OAuth2Strategy.parseErrorResponse (D:\oslash_backend_clone\node_modules\passport-oauth2\lib\strategy.js:373:12)\n at Strategy.OAuth2Strategy._createOAuthError (D:\oslash_backend_clone\node_modules\passport-oauth2\lib\strategy.js:420:16)\n at D:\oslash_backend_clone\node_modules\passport-oauth2\lib\strategy.js:177:45\n at D:\oslash_backend_clone\node_modules\oauth\lib\oauth2.js:191:18\n at passBackControl (D:\oslash_backend_clone\node_modules\oauth\lib\oauth2.js:132:9)\n at IncomingMessage. (D:\oslash_backend_clone\node_modules\oauth\lib\oauth2.js:157:7)\n at IncomingMessage.emit (events.js:327:22)\n at IncomingMessage.EventEmitter.emit (domain.js:467:12)\n at endReadableNT (internal/streams/readable.js:1327:12)\n
at processTicksAndRejections (internal/process/task_queues.js:80:21)","name":"TokenError","code":"invalid_grant","status":500},"msg":"Bad Request"}

Routes:

fastify.get(
    "/google",
    {
      preValidation: fastifyPassport.authenticate("google", {
        scope: ["profile", "email"],
        authInfo: false,
      }),
    },
    (req: any, res: any, next: any) => {}
  );

  // callback route for google to redirect to
fastify.get(
    "/google/callback",
    {
      preValidation: fastifyPassport.authenticate("google", {
        successRedirect: "/user/profile",
        failureRedirect: "/login",
        authInfo: false,
      }),
    },
    (req: any, res: any, next: any) => {
      res.send(req.user);
    }
  );

passport-setup:

fastifyPassport.registerUserSerializer(async (user: any, done: any) => {
  done(null, user._id);
});

fastifyPassport.registerUserDeserializer(async (id: any, done: any) => {
  models.User.findById(id).then((user: any) => {
    done(null, user);
  });
});

fastifyPassport.use(
  "google",
  new GoogleStrategy(
    {
      clientID: process.env.GOOGLE_CLIENT_ID,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET,
      callbackURL: "/google/callback",
    },
    function (
      access_token: String,
      refresh_token: String,
      profile: any,
      done: any
    ) {
      models.User.findOne({ google_id: profile._json.sub }).then(
        (currentUser: any) => {
          if (currentUser) {
            console.log("User already Exists..!");
            done(null, currentUser);
          } else {
            models.User.create({
              google_id: profile._json.sub,
              email: profile._json.email,
              name: profile._json.name,
              profile_image: profile._json.picture,
              last_login: new Date(),
            }).then((newUser: any) => {
              done(null, newUser);
            });
          }
        }
      );
    }
  )
);