From b1196eb5172b32aa1d3332811ae7f4a8ef5b2451 Mon Sep 17 00:00:00 2001
From: Alex Robsahm <alex.robsahm@athega.se>
Date: Wed, 21 Dec 2016 13:18:07 +0100
Subject: [PATCH] Ping server to keep connection alive

---
 index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/index.js b/index.js
index a54fe3d..0edb749 100644
--- a/index.js
+++ b/index.js
@@ -8,6 +8,7 @@ const requestConfig = (webSocket, environment) => {
 };
 
 const initializeConfigUpdate = (conf) => {
+  let ping;
   let retryNumOfTimes = 0;
   
   const connect = (resolve, reject) => {
@@ -16,6 +17,7 @@ const initializeConfigUpdate = (conf) => {
     webSocket.on("open", () => {
       retryNumOfTimes = 0;
       requestConfig(webSocket, conf.environment);
+      ping = setInterval(ws.ping(), 15000);
     });
 
     webSocket.on("message", (message) => {
@@ -33,6 +35,7 @@ const initializeConfigUpdate = (conf) => {
     });
 
     webSocket.on("close", () => {
+      clearInterval(ping);
       setTimeout(connect, Math.ceil(Math.pow(Math.E, retryNumOfTimes)) * 100, resolve, reject);
       retryNumOfTimes += 1;
     });