app.js

const createError = require("http-errors");
const express = require("express");
const path = require("path");
const cookieParser = require("cookie-parser");
const logger = require("morgan");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");

const indexRouter = require("./routes/index");
const usersRouter = require("./routes/blogs");

const app = express();

// Set up DB
mongoose.connect("mongodb://localhost/blogPost", {
	useNewUrlParser: true
});

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

app.use(bodyParser.urlencoded({ extended: true }));
app.use(logger("combined"));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, "public")));

app.use("/", indexRouter);
app.use("/blogs", usersRouter);

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

// error handler
app.use((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", {
		title: "Error!"
	});
});

module.exports = app;