A Redis-backed notification server written in Go.
##Installation
go get github.com/johnernaut/goatee
import "github.com/johnernaut/goatee"
##Usage goatee works by listening on a channel via Redis Pub/Sub and then sending the received message to connected clients via WebSockets.
goatee will look for a JSON configuration file in a config folder at the root of your project with the following names based on your environment: development.json, production.json, etc. By default config/development.json will be used but you can also specify a GO_ENV environment variable and the name of that will be used instead.
// example json configuration
// specify redis and websocket hosts
{
"redis": {
"host": "localhost:6379"
},
"web": {
"host": "localhost:1235"
}
}======
package main
import (
"github.com/johnernaut/goatee"
"log"
)
func main() {
err := goatee.CreateServer("achannel") // pass in the redis channel you'd like to subscribe to
if err != nil {
log.Fatal("Error: ", err.Error())
}
}========
<!doctype html>
<html>
<head><title>goatee</title></head>
<body>
<h1>Websocket Messages:</h1>
<ul id="ws">
</ul>
</body>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script>
var ws = new WebSocket("ws://localhost:1235/"); // based on the websocket host set in your config file
ws.onopen = function() {
console.log('opened!');
}
ws.onclose = function(e) {
console.log('closed!' + e.code);
}
ws.onerror = function(error) {
console.log("Error: " + error);
}
ws.onmessage = function(e) {
$('#ws').append('<li>' + e.data + '</li>');
}
</script>
</html>========
With goatee running and your web browser connected to the socket, you should now be able to test message sending from Redis to your client (browser). Run redis-cli and publish a message to the channel you subscribed to in your Go server. E.x. publish 'mychannel' 'mymessage'
go test github.com/johnernaut/goatee
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