// NotifySpent requests notifications for when a transaction is processed which
// spends op.
func NotifySpent(rpc ServerConn, outpoints []*btcwire.OutPoint) *btcjson.Error {
ops := make([]btcws.OutPoint, 0, len(outpoints))
for _, op := range outpoints {
ops = append(ops, *btcws.NewOutPointFromWire(op))
}
cmd := btcws.NewNotifySpentCmd(<-NewJSONID, ops)
response := <-rpc.SendRequest(NewServerRequest(cmd))
_, jsonErr := response.FinishUnmarshal(nil)
return jsonErr
}
// notifySpentInternal is the same as notifySpentAsync except it accepts
// the converted outpoints as a parameter so the client can more efficiently
// recreate the previous notification state on reconnect.
func (c *Client) notifySpentInternal(outpoints []btcws.OutPoint) FutureNotifySpentResult {
// Not supported in HTTP POST mode.
if c.config.HttpPostMode {
return newFutureError(ErrNotificationsNotSupported)
}
// Ignore the notification if the client is not interested in
// notifications.
if c.ntfnHandlers == nil {
return newNilFutureResult()
}
id := c.NextID()
cmd := btcws.NewNotifySpentCmd(id, outpoints)
return c.sendCmd(cmd)
}
// NotifySpentAsync returns an instance of a type that can be used to get the
// result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See NotifySpent for the blocking version and more details.
//
// NOTE: This is a btcd extension and requires a websocket connection.
func (c *Client) NotifySpentAsync(outpoints []*btcwire.OutPoint) FutureNotifySpentResult {
// Not supported in HTTP POST mode.
if c.config.HttpPostMode {
return newFutureError(ErrNotificationsNotSupported)
}
// Ignore the notification if the client is not interested in
// notifications.
if c.ntfnHandlers == nil {
return newNilFutureResult()
}
id := c.NextID()
ops := make([]btcws.OutPoint, 0, len(outpoints))
for _, outpoint := range outpoints {
ops = append(ops, *btcws.NewOutPointFromWire(outpoint))
}
cmd := btcws.NewNotifySpentCmd(id, ops)
return c.sendCmd(cmd)
}
// NotifySpent requests notifications for when a transaction is processed which
// spends op.
func NotifySpent(rpc ServerConn, op *btcwire.OutPoint) *btcjson.Error {
cmd := btcws.NewNotifySpentCmd(<-NewJSONID, op)
request := NewServerRequest(cmd, nil)
response := <-rpc.SendRequest(request)
return response.Error()
}