Notes

var express = require("express");
var bodyParser = require("body-parser");
var mongoose = require("mongoose");
mongoose.connect('mongodb://localhost/dayanand-sagar-souvnir-store');
var Product = require("./Schema/product");
var Wishlist = require("./Schema/wishlist");

var app = express();
app.use(bodyParser.json());

app.get("/", function(request, response){
response.send("Home page");
});

app.get("/products", function(req, res) {
Product.find({}, function(err, products) {
if(err) {
res.status(500).send({error: "Some internal error. If problem persist, please contant us and report the issue"});
} else {
res.send(products);
}
});
});

app.get("/products/:categories", function(req, res) {

var cat = req.params.categories;

Product.find({"categories": cat}, function(err, products) {
if(err) {
res.status(500).send({error: "Some internal error. If problem persist, please contant us and report the issue"});
} else {
res.send(products);
}
});
});

app.post("/product", function(request, response){
var prod = request.body;
if(Object.keys(prod).length == 0) {
response.status(500).send({error: "No product is present"});
} else {
var product = new Product();
product.title = prod.title;
product.price = prod.price;
product.description = prod.description;

product.save(function(err, storedProduct) {
if(err) {
response.status(500).send(
{error: "enable to save the product in the database"});
} else {
response.status(200).send(storedProduct);
}
});
}
});

app.post("/wishlist", function(request, response) {
var wishlist = new Wishlist();
var title = request.body.title;
if(title) {
wishlist.title = title;
}
wishlist.save(function(err, wishlistObj){
if(err) {
response.status(500).send({error:"Unable to create wishlist"});
} else {
response.send("wishlist created successfully");
}
});
});

app.put("/wishlist/product/add", function(request, response) {
var prodId = request.body.productId;
Product.findOne({_id: prodId}, function(err, product) {
if(err) {
response.status(500).send(
{error: "Product donest exit in the database"});
} else {
Wishlist.update({_id: request.body.wishlistId},
{$addToSet: {products: product._id}},
function(err, wishList) {
if(err) {
response.status(500).send(
{error: "unable to add the product to the wishlist"});
} else {
response.send("Successfully added the product in the wishlist");
}
});
}
});
});

app.get("/wishlist", function(request, response) {
Wishlist.find({}).populate({path: 'products', model: 'Product'})
.exec(function(err, wishlist) {
if(err) {
response.status(500).send({error: "Unable to fetch the wishlist"});
} else {
response.send(wishlist);
}
});
});


app.listen(3004, function() {
console.log("Server is up and running on Port 3004");
});