feat: Create server entry-point

see: #10

server/app.js

@@ -0,0 +1,50 @@
+/** require dependencies */
+const express = require("express")
+const routes = require("./routes/")
+const mongoose = require("mongoose")
+const cors = require("cors")
+const bodyParser = require("body-parser")
+const helmet = require("helmet")
+// const cloudinary = require("cloudinary")
+
+const app = express()
+const router = express.Router()
+const url = process.env.MONGODB_URI || "mongodb://localhost:27017/vocal-remover-app"
+
+/** connect to MongoDB datastore */
+try {
+	mongoose.connect(url, {
+		//useMongoClient: true
+	})
+} catch (error) {
+
+}
+
+let port = 5000 || process.env.PORT
+
+/** set up routes {API Endpoints} */
+routes(router)
+
+/** set up middlewares */
+app.use(cors())
+app.use(bodyParser.json())
+app.use(helmet())
+//app.use('/static',express.static(path.join(__dirname,'static')))
+
+
+app.get('/', (req, res) => {
+	const help = `
+  <pre>
+    Welcome to Vocal Remover for Karaoke API!
+ </pre>
+  `
+	res.send(help)
+})
+
+
+app.use("/api", router)
+
+/** start server */
+app.listen(port, () => {
+	console.log(`Server started at port: ${port}`)
+})