forked from adshao/go-binance
/
websocket.go
53 lines (47 loc) · 952 Bytes
/
websocket.go
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package binance
import (
"github.com/gorilla/websocket"
)
// WsHandler handle raw websocket message
type WsHandler func(message []byte)
// ErrHandler handles errors
type ErrHandler func(err error)
type wsConfig struct {
endpoint string
}
func newWsConfig(endpoint string) *wsConfig {
return &wsConfig{
endpoint: endpoint,
}
}
var wsServe = func(cfg *wsConfig, handler WsHandler, errHandler ErrHandler) (doneC, stopC chan struct{}, err error) {
c, _, err := websocket.DefaultDialer.Dial(cfg.endpoint, nil)
if err != nil {
return nil, nil, err
}
doneC = make(chan struct{})
stopC = make(chan struct{})
go func() {
defer func() {
cerr := c.Close()
if cerr != nil {
errHandler(cerr)
}
}()
defer close(doneC)
for {
select {
case <-stopC:
return
default:
_, message, err := c.ReadMessage()
if err != nil {
go errHandler(err)
return
}
go handler(message)
}
}
}()
return
}