Add some _examples in the main repository too.

Former-commit-id: 98895c34115ec2076b431332f0ffe9645adf7590

_examples/examples/websockets/main.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+
+	"gopkg.in/kataras/iris.v6"
+	"gopkg.in/kataras/iris.v6/adaptors/httprouter"
+	"gopkg.in/kataras/iris.v6/adaptors/websocket"
+)
+
+func handleConnection(c websocket.Connection) {
+
+	// Read events from browser
+	c.On("chat", func(msg string) {
+
+		// Print the message to the console
+		fmt.Printf("%s sent: %s\n", c.Context().RemoteAddr(), msg)
+
+		// Write message back to browser
+		c.Emit("chat", msg)
+	})
+
+}
+
+func main() {
+	app := iris.New()
+	app.Adapt(iris.DevLogger())
+	app.Adapt(httprouter.New())
+
+	// create our echo websocket server
+	ws := websocket.New(websocket.Config{
+		ReadBufferSize:  1024,
+		WriteBufferSize: 1024,
+		Endpoint:        "/echo",
+	})
+
+	ws.OnConnection(handleConnection)
+
+	// Adapt the websocket server.
+	// you can adapt more than one of course.
+	app.Adapt(ws)
+
+	app.Get("/", func(ctx *iris.Context) {
+		ctx.ServeFile("websockets.html", false) // second parameter: enable gzip?
+	})
+
+	app.Listen(":8080")
+}