app.js

const express = require("express");
const app = express();
const morgan = require("morgan");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");

mongoose.connect(
    `mongodb+srv://imblackline:${process.env.MONGO_ATLAS_PW}@node-rest-perlingo.8dvku7o.mongodb.net/?retryWrites=true&w=majority`
);

const cardRoutes = require("./api/routes/card");
const userRoutes = require("./api/routes/user");

app.use(morgan("dev"));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.use((req, res, next) => {
    res.header("Access-Control-Allow-Origin", "*");
    res.header(
        "Access-Control-Allow-Headers",
        "Origin, X-Requested-With, Content-Type, Accept, Authorization",
    );
    if (req.method === "OPTIONS") {
        res.header(
            "Access-Control-Allow-Methods",
            "PUT, POST, PATCH, DELETE, GET",
        );
        return res.status(200).json({});
    }
    next();
});

app.use("/cards", cardRoutes);
app.use("/user", userRoutes);

app.use((req, res, next) => {
    const error = new Error("Not found");
    error.status = 404;
    next(error);
});

app.use((error, req, res, next) => {
    res.status(error.status || 500);
    res.json({
        error: {
            message: error.message,
        },
    });
});

module.exports = app;