app.js

//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});

const articleSchema = {
    title: String,
    content: String
};

const Article = mongoose.model("Article",articleSchema);

 /////////////////////////All Articles///////////////////////////////////

app.route("/articles")


.get(function(req, res){
  Article.find(function(err, articles){
    if (articles) {
      const jsonArticles = JSON.stringify(articles);
      res.send(jsonArticles);
    } else {
      res.send("No articles currently in wikiDB.");
    }
  });
})

.post(function(req, res){
  const newArticle = 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){

    Article.deleteMany(function(err){
      if (!err){
        res.send("Successfully deleted all the articles in wikiDB.");
      } else {
        res.send(err);
      }
    });
  
  });

  
/////////////////////////Individual Articles///////////////////////////////////

app.route("/articles/:articleTitle")

.get(function(req, res){
  const articleTitle = req.params.articleTitle;
  Article.findOne({title: articleTitle}, function(err, article){
    if (article){
      const jsonArticle = JSON.stringify(article);
      res.send(jsonArticle);
    } else {
      res.send("No article with that title found.");
    }
  });
})

.patch(function(req, res){
    const articleTitle = req.params.articleTitle;
    Article.update(
      {title: articleTitle},
      {content: req.body.newContent},
      function(err){
        if (!err){
          res.send("Successfully updated selected article.");
        } else {
          res.send(err);
        }
      });
  })

.put(function(req, res){

    const articleTitle = req.params.articleTitle;
  
    Article.update(
      {title: articleTitle},
      {content: req.body.newContent},
      {overwrite: true},
      function(err){
        if (!err){
          res.send("Successfully updated the content of the selected article.");
        } else {
          res.send(err);
        }
      });
  })

  .delete(function(req, res){
    const articleTitle = req.params.articleTitle;
    Article.findOneAndDelete({title: articleTitle}, function(err){
      if (!err){
        res.send("Successfully deleted selected article.");
      } else {
        res.send(err);
      }
    });
  });


app.listen(3000, function() {
  console.log("Server started on port 3000");
});