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//jshint
esversion:6 const express =
require("express"); const bodyParser =
require("body-parser"); const ejs = require("ejs"); const mongoose = require('mongoose'); const app = express(); app.set('view engine', 'ejs'); app.use(bodyParser.urlencoded({extended:
true})); app.use(express.static("public")); mongoose.connect("mongodb://localhost:27017/wikiDB",
{useNewUrlParser: true}); // connect to mongodb database const articleSchema = {
title: String,
content: String }; const Article =
mongoose.model("Article", articleSchema); //
remember capitalized, singular form ////////Requests
Targetting all Articles//////// app.route("/articles") .get(function(req, res){ Article.find(function(err,
foundArticles){ //
<ModelName>.find
find all articles
if (!err) {
res.send(foundArticles); }
else {
res.send(err); } }); }) .post(function(req, res){ //add
a new entry
const newArticle = new Article({ title:
req.body.title,
content: req.body.content });
newArticle.save(function(err){
if (!err){
res.send("Successfully added a new article."); }
else {
res.send(err); } }); }) .delete(function(req, res){ // delete all the
entries
Article.deleteMany(function(err){
if (!err){
res.send("Successfully deleted all articles."); }
else {
res.send(err); } }); }); /////////Requests Targetting A Specific Article/////// app.route("/articles/:articleTitle") .get(function(req, res){
Article.findOne({title: req.params.articleTitle}, function(err,
foundArticle){ // find one document
if (foundArticle) {
res.send(foundArticle); }
else {
res.send("No articles matching that title was found."); } }); }) .put(function(req, res){ //update an entry
Article.update( //
model name
{title: req.params.articleTitle},
// condition
{title: req.body.title, content: req.body.content}, //updates
exactly as what is put here. If a field is missing, it will update the database
as Null or wipe out that field
{overwrite: true},
function(err){
if(!err){
res.send("Successfully updated the selected article.");
} } ); }) .patch(function(req, res){ //update some fields of an entry
Article.update(
{title: req.params.articleTitle}, // conditions
{$set: req.body}, // update a certain field
function(err){
if(!err){
res.send("Successfully updated article.");
} else {
res.send(err);
} } ); }) .delete(function(req, res){
Article.deleteOne( //delete
one entry {title:
req.params.articleTitle}, //condition
function(err){
if (!err){
res.send("Successfully deleted the corresponding article.");
} else {
res.send(err);
} } ); }); app.listen(3000, function() {
console.log("Server started on port 3000"); }); |
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