From 80be38128f21ffb8ab409732c6bb37ff0a4b9c62 Mon Sep 17 00:00:00 2001
From: Zorchenhimer <zorchenhimer@gmail.com>
Date: Sat, 16 Mar 2019 14:12:25 -0400
Subject: [PATCH] Wasm client pings the server every second

This prevents disconnects when the server is behind Nignx.  Resolves
#35.
---
 common/constants.go | 1 +
 wasm/main_wasm.go   | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/constants.go b/common/constants.go
index 4966c31..17f9d9e 100644
--- a/common/constants.go
+++ b/common/constants.go
@@ -5,6 +5,7 @@ type ClientDataType int
 const (
 	CdMessage ClientDataType = iota // a normal message from the client meant to be broadcast
 	CdUsers                         // get a list of users
+	CdPing                          // ping the server to keep the connection alive
 )
 
 type DataType int
diff --git a/wasm/main_wasm.go b/wasm/main_wasm.go
index e8471a9..5b167a1 100644
--- a/wasm/main_wasm.go
+++ b/wasm/main_wasm.go
@@ -261,6 +261,7 @@ func main() {
 
 	// This is needed so the goroutine does not end
 	for {
-		time.Sleep(time.Minute)
+		websocketSend("", common.CdPing)
+		time.Sleep(time.Second)
 	}
 }