microservices/auth-service/routes/auth.js

const router = require("express").Router();
const passport = require("passport");
const axios = require("axios");

router.get(
  "/google/callback",
  passport.authenticate("google", {
    successRedirect: "/auth/login",
    failureRedirect: "/auth/login/failed",
  })
);

router.get("/login", (req, res) => {
  if (req.user) {

    console.log(`${process.env.DB_USER_SERVICE_URL}instructor/register-user`)
    axios.post(`${process.env.DB_USER_SERVICE_URL}instructor/register-user`, {
      user: req.user,
    })
    .then(response => {
      console.log("User registration response:", response.data);
      res.redirect(process.env.CLIENT_URL);
    })
    .catch(error => {
      console.error("Error registering user:", error.message);
      res.status(500).json({ error: true, message: "User login failed" });
    });

  } else {
    res.status(403).json({ error: true, message: "Not Authorized" });
  }
});

router.get("/login/failed", (req, res) => {
  res.status(401).json({
    error: true,
    message: "Log in failure",
  });
});

router.get("/google", passport.authenticate("google", ["profile", "email"]));

router.get("/logout", (req, res) => {
    req.logOut();
    res.redirect(process.env.CLIENT_URL);
});

module.exports = router;