// notifyReceivedInternal is the same as notifyReceivedAsync except it accepts
// the converted addresses as a parameter so the client can more efficiently
// recreate the previous notification state on reconnect.
func (c *Client) notifyReceivedInternal(addresses []string) FutureNotifyReceivedResult {
// 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()
}
// Convert addresses to strings.
id := c.NextID()
cmd := btcws.NewNotifyReceivedCmd(id, addresses)
return c.sendCmd(cmd)
}
// NotifyReceivedAsync 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 NotifyReceived for the blocking version and more details.
//
// NOTE: This is a btcd extension and requires a websocket connection.
func (c *Client) NotifyReceivedAsync(addresses []btcutil.Address) FutureNotifyReceivedResult {
// 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()
}
// Convert addresses to strings.
addrs := make([]string, 0, len(addresses))
for _, addr := range addresses {
addrs = append(addrs, addr.EncodeAddress())
}
id := c.NextID()
cmd := btcws.NewNotifyReceivedCmd(id, addrs)
return c.sendCmd(cmd)
}
// NotifyReceived requests notifications for new transactions that spend
// to any of the addresses in addrs.
func NotifyReceived(rpc ServerConn, addrs []string) *btcjson.Error {
cmd := btcws.NewNotifyReceivedCmd(<-NewJSONID, addrs)
response := <-rpc.SendRequest(NewServerRequest(cmd))
_, jsonErr := response.FinishUnmarshal(nil)
return jsonErr
}
