Add nodejs sample code

- Add sample code on nodejs
- Add gitignore

Author: whoisxmlapi

.gitignore

@@ -0,0 +1 @@
+.idea/*

nodejs/sample.js

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+var https = require('https');
+var querystring = require('querystring');
+
+var url = "https://www.whoisxmlapi.com/whoisserver/WhoisService?";
+
+var parameters = {
+    domainName: 'google.com',
+    username: 'YOUR_USERNAME',
+    password: 'YOUR_PASSWORD',
+    outputFormat: 'json'
+};
+
+url = url + querystring.stringify(parameters);
+
+https.get(url, function (res) {
+    const statusCode = res.statusCode;
+
+    if (statusCode !== 200) {
+        console.log('Request failed: '
+            + statusCode
+        );
+    }
+
+    var rawData = '';
+
+    res.on('data', function(chunk) {
+        rawData += chunk;
+    });
+    res.on('end', function () {
+        try {
+            var parsedData = JSON.stringify(rawData);
+            console.log(parsedData);
+        } catch (e) {
+            console.log(e.message);
+        }
+    })
+}).on('error', function(e) {
+    console.log("Error: " + e.message);
+});