server.js

require("dotenv").config();
const express = require('express')
const mongoose = require('mongoose')
const Document = require('./models/Document')

const app = express()

app.set('view engine', 'ejs')
app.use(express.static('public'))
app.use(express.urlencoded({ extended: true }))


app.get('/', (req, res) => {
    const code = `Welcome to textbin

Use the commands in the top right corner
to create a new file to share with others`
    res.render('code-display', { code, language: "plaintext" })
    // res.send('hi')
})

app.get('/new', (req, res) => {
    res.render('new')
})

app.post("/save", async (req, res) => {
    const value = req.body.value
    try {

        console.log(document.id + ":saved.")
        const document = await Document.create({ value })
        res.redirect(`/${document.id}`)
    }
    catch (e) {
        res.render("new", { value })
    }
})

app.get('/:id', async (req, res) => {
    const id = req.params.id
    try {
        const document = await Document.findById(id)
        res.render('code-display', { code: document.value, id })
    }
    catch (e) {
        res.redirect('/')
    }
})

app.get('/:id/duplicate', async (req, res) => {
    const id = req.params.id
    try {
        const document = await Document.findById(id)
        res.render('new', { value: document.value })
    }
    catch (e) {
        res.redirect(`/${id}`)
    }
})

async function start() {
    try {

        await mongoose.connect(process.env.MONGO_URI
            , { useUnifiedTopology: true, useNewUrlParser: true });

        console.log("Database connected");
        app.listen(process.env.PORT || 3000, () => {
            console.log("Server running on http://localhost:3000")
        });
    }
    catch (err) {
        console.log("DB connection failed:", err);
        process.exit(1);
    }
}

start();