'\" t
.\"     Title: lightning-waitsendpay
.\"    Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 03/14/2018
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "LIGHTNING\-WAITSENDP" "7" "03/14/2018" "\ \&" "\ \&"
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.SH "NAME"
lightning-waitsendpay \- Protocol for sending a payment via a route\&.
.SH "SYNOPSIS"
.sp
\fBwaitsendpay\fR \fIpayment_hash\fR [\fItimeout\fR]
.SH "DESCRIPTION"
.sp
The \fBwaitsendpay\fR RPC command polls or waits for the status of an outgoing payment that was initiated by a previous \fBsendpay\fR invocation\&.
.sp
Optionally the client may provide a \fItimeout\fR, an integer in seconds, for this RPC command to return\&. If the \fItimeout\fR is provided and the given amount of time passes without the payment definitely succeeding or definitely failing, this command returns with a 200 error code (payment still in progress)\&. If \fItimeout\fR is not provided this call will wait indefinitely\&.
.sp
Indicating a \fItimeout\fR of 0 effectively makes this call a pollable query of the status of the payment\&.
.sp
If the payment completed with success, this command returns with success\&. Otherwise, if the payment completed with failure, this command returns an error\&.
.SH "RETURN VALUE"
.sp
On success, an object similar to the output of \fBlistpayments\fR will be returned\&. This object will have a \fIstatus\fR field that is the string \fI"complete"\fR\&.
.sp
On error, if the error occurred from a node other than the final destination, the route table will be updated so that getroute(7) should return an alternate route (if any)\&. An error from the final destination implies the payment should not be retried\&.
.sp
The following error codes may occur:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\-1\&. Catchall nonspecific error\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
200\&. Timed out before the payment could complete\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
202\&. Unparseable onion reply\&. The
\fIdata\fR
field of the error will have an
\fIonionreply\fR
field, a hex string representation of the raw onion reply\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
203\&. Permanent failure at destination\&. The
\fIdata\fR
field of the error will be routing failure object\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
204\&. Failure along route; retry a different route\&. The
\fIdata\fR
field of the error will be routing failure object\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
208\&. A payment for
\fIpayment_hash\fR
was never made and there is nothing to wait for\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
209\&. The payment already failed, but the reason for failure was not stored\&. This should only occur when querying failed payments on very old databases\&.
.RE
.sp
A routing failure object has the fields below:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIerring_index\fR\&. The index of the node along the route that reported the error\&. 0 for the local node, 1 for the first hop, and so on\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIerring_node\fR\&. The hex string of the pubkey id of the node that reported the error\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIerring_channel\fR\&. The short channel ID of the channel that has the error, or
\fI0:0:0\fR
if the destination node raised the error\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIfailcode\fR\&. The failure code, as per BOLT #4\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIchannel_update\fR\&. The hex string of the
\fIchannel_update\fR
message received from the remote node\&. Only present if error is from the remote node and the
\fIfailcode\fR
has the UPDATE bit set, as per BOLT #4\&.
.RE
.SH "AUTHOR"
.sp
ZmnSCPxj <ZmnSCPxj@protonmail\&.com> is mainly responsible\&.
.SH "SEE ALSO"
.sp
lightning\-sendpay(7), lightning\-pay(7)\&.
.SH "RESOURCES"
.sp
Main web site: https://github\&.com/ElementsProject/lightning