app.js

const express = require("express");
const bodyParser = require("body-parser");
const dotenv = require("dotenv");
const mongoose = require("mongoose");
const path = require("path");
const multer = require("multer");

const feedRoutes = require("./routes/feed");
const authRoutes = require("./routes/auth");

dotenv.config();
const app = express();

const fileStorage = multer.diskStorage({
    destination: (req, file, cb) => {
        cb(null, "images");
    },
    filename: (req, file, cb) => {
        cb(null, Date.now()+"-"+file.originalname);
    }
});
const fileFilter = (req,file,cb) => {
    if(file.mimetype == "image/jpg" || file.mimetype == "image/jpeg" || file.mimetype == "image/png") {
        cb(null, true);
    } else { cb(null, false); }
}

app.use(bodyParser.json());
app.use(multer({
    storage: fileStorage,
    fileFilter: fileFilter
}).single("image"));
app.use("/images", express.static(path.join(__dirname,"images")))
app.use((req,res,next) => {
    res.setHeader("Access-Control-Allow-Origin","*");
    res.setHeader("Access-Control-Allow-Methods", "GET,POST,PUT,PATCH,DELETE");
    res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
    next();
});

app.use("/feed",feedRoutes);
app.use("/auth",authRoutes);

app.use((error, req, res, next) => {
    console.log(error);
    const status = error.statusCode || 500;
    const message = error.message;
    const data = error.data || [];
    res.status(status).json({message:message, data: data});
})

mongoose.connect(process.env.dbConnectionString).then(result => {
    const server = app.listen(8080);
    const io = require("./socket").init(server);
    io.on('connection', socket => {
        console.log("Connected to web socket")
        //console.log(socket);
    })
})
.catch(err => console.log(err));