// 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])
}
func streamLogs(logsRawURL string, filter string) error {
var (
err error
buffer [20480]byte
event WSEvent
)
logsURL, err := url.Parse(logsRawURL)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
if logsURL.Scheme == "https" {
logsURL.Scheme = "wss"
} else {
logsURL.Scheme = "ws"
}
logsURLString := fmt.Sprintf("%s&stream=true", logsURL.String())
if filter != "" {
logsURLString = fmt.Sprintf("%s&filter=%s", logsURLString, filter)
}
conn, err := websocket.Dial(logsURLString, "", "http://scalingo-cli.local/"+config.Version)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
for {
n, err := conn.Read(buffer[:])
if err != nil {
return errgo.Mask(err, errgo.Any)
}
debug.Println(string(buffer[:n]))
err = json.Unmarshal(buffer[:n], &event)
if err != nil {
return errgo.Notef(err, "invalid JSON %v", string(buffer[:n]))
}
switch event.Type {
case "ping":
case "log":
fmt.Println(strings.TrimSpace(event.Log))
}
}
}