app.js

var createError = require("http-errors");
var express = require("express");
var path = require("path");
var cookieParser = require("cookie-parser");
var logger = require("morgan");
const methodOverride = require("method-override");
const connectDb = require("./modules/db");
const session = require("express-session");

var indexRouter = require("./routes/index");
var usersRouter = require("./routes/users");
var submissionRouter = require("./routes/submission");
require("dotenv").config();
var app = express();
connectDb();

app.listen(process.env.PORT || 3000, () => {
    console.log("Server is running ...");
});

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

// <-----------middleware------------------>
app.use(logger("dev"));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));
app.use(methodOverride("_method"));
app.use(
    session({
        secret: process.env.SESSIONSECRET,
        resave: false,
        saveUninitialized: true,
    })
);

app.use("/", indexRouter);
app.use("/users", usersRouter);
app.use("/", submissionRouter);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
    next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get("env") === "development" ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render("error");
});

module.exports = app;