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events.go
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events.go
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package websocket
import (
"encoding/json"
log "github.com/sirupsen/logrus"
)
func (k *Kraken) handleEvent(msg []byte) error {
var event EventType
if err := json.Unmarshal(msg, &event); err != nil {
return err
}
switch event.Event {
case EventPong:
return k.handleEventPong(msg)
case EventSystemStatus:
return k.handleEventSystemStatus(msg)
case EventSubscriptionStatus:
return k.handleEventSubscriptionStatus(msg)
case EventCancelOrderStatus:
return k.handleEventCancelOrderStatus(msg)
case EventAddOrderStatus:
return k.handleEventAddOrderStatus(msg)
case EventCancelAllStatus:
return k.handleEventCancellAllStatus(msg)
case EventCancelAllOrdersAfter:
return k.handleEventCancellAllOrdersAfter(msg)
case EventEditOrderStatus:
return k.handleEventEditOrderStatus(msg)
case EventHeartbeat:
default:
log.Warnf("unknown event: %s", msg)
}
return nil
}
func (k *Kraken) handleEventPong(data []byte) error {
var pong PongResponse
return json.Unmarshal(data, &pong)
}
func (k *Kraken) handleEventSystemStatus(data []byte) error {
var systemStatus SystemStatus
if err := json.Unmarshal(data, &systemStatus); err != nil {
return err
}
log.Infof("Status: %s", systemStatus.Status)
log.Infof("Connection ID: %s", systemStatus.ConnectionID.String())
log.Infof("Version: %s", systemStatus.Version)
return nil
}
func (k *Kraken) handleEventSubscriptionStatus(data []byte) error {
var status SubscriptionStatus
if err := json.Unmarshal(data, &status); err != nil {
return err
}
if status.Status == SubscriptionStatusError {
log.Errorf("%s: %s", status.Error, status.Pair)
} else {
log.Infof("\tStatus: %s", status.Status)
log.Infof("\tPair: %s", status.Pair)
log.Infof("\tSubscription: %s", status.Subscription.Name)
log.Infof("\tChannel ID: %d", status.ChannelID)
log.Infof("\tReq ID: %s", status.ReqID)
if status.Status == SubscriptionStatusSubscribed {
k.subscriptions[status.ChannelID] = &status
} else if status.Status == SubscriptionStatusUnsubscribed {
delete(k.subscriptions, status.ChannelID)
}
}
return nil
}
func (k *Kraken) handleEventCancelOrderStatus(data []byte) error {
var cancelOrderResponse CancelOrderResponse
if err := json.Unmarshal(data, &cancelOrderResponse); err != nil {
return err
}
switch cancelOrderResponse.Status {
case StatusError:
log.Errorf(cancelOrderResponse.ErrorMessage)
case StatusOK:
log.Debug(" Order successfully cancelled")
k.msg <- Update{
ChannelName: EventCancelOrder,
Data: cancelOrderResponse,
}
default:
log.Errorf("Unknown status: %s", cancelOrderResponse.Status)
}
return nil
}
func (k *Kraken) handleEventAddOrderStatus(data []byte) error {
var addOrderResponse AddOrderResponse
if err := json.Unmarshal(data, &addOrderResponse); err != nil {
return err
}
switch addOrderResponse.Status {
case StatusError:
log.Errorf(addOrderResponse.ErrorMessage)
case StatusOK:
log.Debug("Order successfully sent")
k.msg <- Update{
ChannelName: EventAddOrder,
Data: addOrderResponse,
}
default:
log.Errorf("Unknown status: %s", addOrderResponse.Status)
}
return nil
}
func (k *Kraken) handleEventCancellAllStatus(data []byte) error {
var cancelAllResponse CancelAllResponse
if err := json.Unmarshal(data, &cancelAllResponse); err != nil {
return err
}
switch cancelAllResponse.Status {
case StatusError:
log.Errorf(cancelAllResponse.ErrorMessage)
case StatusOK:
log.Debugf("%d orders cancelled", cancelAllResponse.Count)
k.msg <- Update{
ChannelName: EventCancelAllStatus,
Data: cancelAllResponse,
}
default:
log.Errorf("Unknown status: %s", cancelAllResponse.Status)
}
return nil
}
func (k *Kraken) handleEventCancellAllOrdersAfter(data []byte) error {
var cancelAllResponse CancelAllOrdersAfterResponse
if err := json.Unmarshal(data, &cancelAllResponse); err != nil {
return err
}
switch cancelAllResponse.Status {
case StatusError:
log.Errorf(cancelAllResponse.ErrorMessage)
case StatusOK:
k.msg <- Update{
ChannelName: EventCancelAllOrdersAfter,
Data: cancelAllResponse,
}
default:
log.Errorf("Unknown status: %s", cancelAllResponse.Status)
}
return nil
}
func (k *Kraken) handleEventEditOrderStatus(data []byte) error {
var editOrderResponse EditOrderResponse
if err := json.Unmarshal(data, &editOrderResponse); err != nil {
return err
}
switch editOrderResponse.Status {
case StatusError:
log.Errorf(editOrderResponse.ErrorMessage)
case StatusOK:
log.Debug("Order successfully edited")
k.msg <- Update{
ChannelName: EventEditOrder,
Data: editOrderResponse,
}
default:
log.Errorf("Unknown status: %s", editOrderResponse.Status)
}
return nil
}