DB connecting

-const http = require('http');
 const fs = require('fs');
-const url = require('url');
 
-var app = http.createServer(function (request, response) {
-    var _url = request.url;
+const express = require('express');
 
-    if (pathname == '/') {
-        
-        response.writeHead(200);
-        response.end(__dirname, _url);
-    
-    }
+const bodyParser = require('body-parser');
+
+const app = express();
+
+const port = process.env.PORT || 5000;
+
+app.use(bodyParser.json());
+
+app.use(bodyParser.urlencoded({ extended: true }));
+
+
+
+const data = fs.readFileSync('./database.json');
+
+const conf = JSON.parse(data);
+
+const mysql = require('mysql');
+
+
+
+const connection = mysql.createConnection({
+
+    host: conf.host,
+
+    user: conf.user,
+
+    password: conf.password,
+
+    port: conf.port,
+
+    database: conf.database
 
 });
 
-app.listen(3000);
\ No newline at end of file
+connection.connect();
+
+
+
+app.get('/api/visiter', (req, res) => {
+
+    connection.query(
+
+    'SELECT * FROM  visiter',
+
+        (err, rows, fields) => {
+
+            res.send(rows);
+
+        }
+
+    )
+
+});
+
+
+
+app.listen(port, () => console.log(`Listening on port ${port}`));