client. allow connection to any url. url generator function.

README.md

@@ -140,7 +140,10 @@ var socket = io('ws://yourdomain.com', {transports: ['websocket']});
 
 ```go
     //connect to server, you can use your own transport settings
-	c, err := gosocketio.Dial("localhost:80", transport.GetDefaultWebsocketTransport())
+	c, err := gosocketio.Dial(
+		gosocketio.GetUrl("localhost", 80, false),
+		transport.GetDefaultWebsocketTransport(),
+	)
 
 	//do something, handlers and functions are same as server ones
 

client.go

@@ -2,10 +2,12 @@ package gosocketio
 
 import (
 	"github.com/graarh/golang-socketio/transport"
+	"strconv"
 )
 
 const (
 	webSocketProtocol = "ws://"
+	webSocketSecureProtocol = "wss://"
 	socketioUrl       = "/socket.io/?EIO=3&transport=websocket"
 )
 
@@ -17,16 +19,34 @@ type Client struct {
 	Channel
 }
 
+/**
+Get ws/wss url by host and port
+ */
+func GetUrl(host string, port int, secure bool) string {
+	var prefix string
+	if secure {
+		prefix = webSocketSecureProtocol
+	} else {
+		prefix = webSocketProtocol
+	}
+	return prefix + host + ":" + strconv.Itoa(port) + socketioUrl
+}
+
 /**
 connect to host and initialise socket.io protocol
+
+The correct ws protocol url example:
+ws://myserver.com/socket.io/?EIO=3&transport=websocket
+
+You can use GetUrlByHost for generating correct url
 */
-func Dial(host string, tr transport.Transport) (*Client, error) {
+func Dial(url string, tr transport.Transport) (*Client, error) {
 	c := &Client{}
 	c.initChannel()
 	c.initMethods()
 
 	var err error
-	c.conn, err = tr.Connect(host)
+	c.conn, err = tr.Connect(url)
 	if err != nil {
 		return nil, err
 	}

examples/client.go

@@ -31,7 +31,9 @@ func sendJoin(c *gosocketio.Client) {
 func main() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
 
-	c, err := gosocketio.Dial("localhost:3811", transport.GetDefaultWebsocketTransport())
+	c, err := gosocketio.Dial(
+		gosocketio.GetUrl("localhost", 3811, false),
+		transport.GetDefaultWebsocketTransport())
 	if err != nil {
 		log.Fatal(err)
 	}

transport/transport.go

@@ -37,7 +37,7 @@ type Transport interface {
 	/**
 	Get client connection
 	*/
-	Connect(host string) (conn Connection, err error)
+	Connect(url string) (conn Connection, err error)
 
 	/**
 	Handle one server connection

transport/websocket.go

@@ -9,8 +9,6 @@ import (
 )
 
 const (
-	webSocketProtocol = "ws://"
-	socketioUrl       = "/socket.io/?EIO=3&transport=websocket"
 	upgradeFailed     = "Upgrade failed: "
 
 	WsDefaultPingInterval   = 30 * time.Second
@@ -92,9 +90,9 @@ type WebsocketTransport struct {
 	BufferSize int
 }
 
-func (wst *WebsocketTransport) Connect(host string) (conn Connection, err error) {
+func (wst *WebsocketTransport) Connect(url string) (conn Connection, err error) {
 	dialer := websocket.Dialer{}
-	socket, _, err := dialer.Dial(webSocketProtocol+host+socketioUrl, nil)
+	socket, _, err := dialer.Dial(url, nil)
 	if err != nil {
 		return nil, err
 	}