From b4c696032c60ed063b00286cdffc69db6c84e96f Mon Sep 17 00:00:00 2001
From: Wahib-Ul-Haq <wahib.tech@gmail.com>
Date: Fri, 9 Feb 2018 10:02:39 +0100
Subject: [PATCH] replaced with the updated code

---
 nodejs_rpi/app.js | 42 +++++++++++++++++++-----------------------
 1 file changed, 19 insertions(+), 23 deletions(-)

diff --git a/nodejs_rpi/app.js b/nodejs_rpi/app.js
index 9c20b41..16e38ec 100644
--- a/nodejs_rpi/app.js
+++ b/nodejs_rpi/app.js
@@ -1,7 +1,7 @@
 var http = require("http");
 var gpio = require("pi-gpio");
 var pin = 11;
-var relayOpen = false;
+let relayOpen = false; // A global flag for relay
 var openTime = 2000;
 
 // Creation of a simple Webserver to handle requests from slack
@@ -33,29 +33,25 @@ console.log('Server running at http://127.0.0.1:80/');
 
 // Method to open and close the relay
 function openDoor(doorTimeout) {
-    doorTimeout = doorTimeout || 1;
-    if (!relayOpen) {
-        relayOpen = true;
-        console.log('open called');
-        gpio.open(pin, "output", function(err) { // Open pin 11 for output 
-            gpio.write(pin, 1, function() { // Set pin 11 high (1) 
-                setTimeout(function() {
-                    closeRelay(); // Close pin 11
-                }, (doorTimeout));
-            });
-
-
-        });
-    }
-
-    return "success";
+  doorTimeout = doorTimeout || 1;
+  
+  if (!relayOpen) {
+    relayOpen = true;
+    console.log('open called');
+    gpio.open(pin, 'output', (err) => { // Open pin 11 for output 
+      gpio.write(pin, 1, () => { // Set pin 11 high (1) 
+        setTimeout(=> () {
+          closeRelay(); // Close pin 11
+        }, doorTimeout);
+      });
+    });
+  }
 }
 
 function closeRelay() {
-    gpio.write(pin, 0, function() {
-        console.log('closed!');
-        relayOpen = false;
-        gpio.close(pin);
-    });
-
+  gpio.write(pin, 0, () => {
+    console.log('closed!');
+    relayOpen = false;
+    gpio.close(pin);
+  });
 }
\ No newline at end of file