index.js

const express = require("express");
const app =express();
const mongoose = require("mongoose");
const path = require("path");
const Chat = require("./models/chat.js");
const methodOverride = require("method-override");

app.set("views", path.join(__dirname, "views"));
app.set("view engine", "ejs");

app.use(express.static(path.join(__dirname, "public")));
app.use(express.urlencoded({extended: true}));
app.use(methodOverride("_method"));

main()
.then(() => {
    console.log("connection successful");
})
.catch(err => console.log(err));

async function main() {
  await mongoose.connect('mongodb://127.0.0.1:27017/whatsapp');
}

//Index Route
app.get("/chats", async (req, res) => {
    let chats = await Chat.find();
    console.log(chats);
    res.render("index.ejs",{chats})
});

//New route
app.get("/chats/new", (req, res) => {
    res.render("new.ejs");
});

//Create Route
app.post("/chats", (req, res) => {
    let {from, to , msg} = req.body;
    let newChat =new Chat({
        from: from,
        to: to,
        msg: msg,
        created_at: new Date()
    });
    newChat
    .save()
    .then(res => {
        console.log("chat was saved")
        })
        .catch((err) => {
            console.log(err);
        });
    
    res.redirect("/chats");
});

//Edit Route
app.get("/chats/:id/edit", async (req, res) => {
    let {id} = req.params;
    let chat = await Chat.findById(id);
    res.render("edit.ejs", {chat});
});



app.get("/", (req, res) => {
    res.send("root is working");
});

app.listen(8080, ()=> {
    console.log("server is listening to port");
});