PROJECT PHASE 2 (PART-E) CONNECTING LOGIN

PASSPORT PROVIDES AN IN-BUILT FUNCTION Authenticate()   TO CHECK IF THE USER IS LOGGED IN OR NOT.

WE CREATE A SEPERATE MIDDLEWARE FUNCTION TO AUTHENTICATE AND STORE IT IN A SEPERATE FILE.

MIDDLEWARE.JS

module.exports.isLoggedIn = (req, res, next) => {

  if (!req.isAuthenticated()) {

    req.flash("error", "You must Login First!");

    return res.redirect("/login");

  }

  next();

};

IN LISTING.JS

const { isLoggedIn } = require("../middleware.js");

WE ADD THIS MIDDLEWARE TO ROUTES LIKE CREATE ,EDIT AND DELETE.

// NEW ROUTE

router.get("/new",isLoggedIn, (req, res) => {

  res.render("listings/new.ejs");

});

router.post(

  "/",isLoggedIn,

  ValidateListing,

  wrapAsync(async (req, res, next) => {

    const newListing = new Listing(req.body.listing);

    await newListing.save();

    req.flash("success", "New Listing Added!");

    res.redirect("/listings");

  })

);

// EDIT ROUTE

router.get(

  "/:id/edit",isLoggedIn,

  wrapAsync(async (req, res) => {

    let { id } = req.params;

    const listing = await Listing.findById(id);

    if (!listing) {

      req.flash("error", "Listing requested doesn't exist!");

      res.redirect("/listings");

    }

    res.render("listings/edit.ejs", { listing });

  })

);

// UPDATE ROUTE

router.put(

  "/:id",isLoggedIn,

  ValidateListing,

  wrapAsync(async (req, res) => {

    if (!req.body.listing) {

      throw new ExpressError(400, "send valid data!");

    }

    let { id } = req.params;

    await Listing.findByIdAndUpdate(id, { ...req.body.listing });

    req.flash("success", "Updated Successful!");

    res.redirect(`/listings/${id}`);

  })

);

// DELETE ROUTE

router.delete(

  "/:id",isLoggedIn,

  wrapAsync(async (req, res) => {

    let { id } = req.params;

    let deletedList = await Listing.findByIdAndDelete(id);

    console.log(deletedList);

    req.flash("success", "Listing Deleted!");

    res.redirect("/listings");

  })

);