func connect(rpc *duplex.RPC, path string, backend bool) (*duplex.Peer, error) {
var baseUrl, token, secret, url string
if os.Getenv("HUB_URL") != "" {
baseUrl = os.Getenv("HUB_URL")
} else {
baseUrl = "ws://localhost:8080"
}
if os.Getenv("SECRET") != "" {
secret = os.Getenv("SECRET")
} else {
secret = "test"
}
if backend {
if os.Getenv("TOKEN") != "" {
token = os.Getenv("TOKEN")
} else {
token = "dev"
}
url = fmt.Sprintf("%s%s?token=%s&secret=%s",
baseUrl, path, token, secret)
} else {
url = fmt.Sprintf("%s%s?secret=%s",
baseUrl, path, secret)
}
ws, err := websocket.Dial(url, "", "http://example.com")
if err != nil {
return nil, err
}
return rpc.Handshake(ws)
}
// This example demonstrates a trivial client.
func ExampleDial() {
origin := "http://localhost/"
url := "ws://localhost:12345/ws"
ws, err := websocket.Dial(url, "", origin)
if err != nil {
log.Fatal(err)
}
if _, err := ws.Write([]byte("hello, world!\n")); err != nil {
log.Fatal(err)
}
var msg = make([]byte, 512)
var n int
if n, err = ws.Read(msg); err != nil {
log.Fatal(err)
}
fmt.Printf("Received: %s.\n", msg[:n])
}