Made it work

index.js

@@ -52,7 +52,7 @@ app.get('/status/:gpio', function (req, res) {
 
 	const gpio = req.params.gpio;
 	const command = `pinctrl get ${gpio}`;
-	const regex = /^.*\| (..) \/.*$/;
+	const regex = new RegExp(/.*\| (..) \/.*/);
 
 	child_process.exec(command, function (error, stdout, stderr) {
 
@@ -60,9 +60,9 @@ app.get('/status/:gpio', function (req, res) {
 			console.log(error);
 			return res.status(500).send('Error');
 		} else {
-			const status = stdout.toString().match(regex)[1];
+			const status = regex.exec(stdout)[1];
 
-			console.log('Status', gpio, stdout);
+			console.log(stdout);
 			return res.status(200).send(status);
 		}
 	});