'\" t
.\"     Title: lightning-fundchannel
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 05/07/2018
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "LIGHTNING\-FUNDCHANN" "7" "05/07/2018" "\ \&" "\ \&"
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.SH "NAME"
lightning-fundchannel \- Command for establishing a lightning channel\&.
.SH "SYNOPSIS"
.sp
\fBfundchannel\fR \fIid\fR \fIsatoshi\fR
.SH "DESCRIPTION"
.sp
The \fBfundchannel\fR RPC command opens a payment channel with a peer by commiting a funding transaction to the blockchain as defined in BOLT #2\&. \fBfundchannel\fR by itself does not attempt to open a connection\&. A connection must first be established using \fBconnect\fR\&. Once the transaction is confirmed, normal channel operations may begin\&. Readiness is indicated by \fBlistpeers\fR reporting a \fIstate\fR of CHANNELD_NORMAL for the channel\&.
.sp
\fIid\fR is the peer id obtained from \fBconnect\fR\&.
.sp
\fIsatoshi\fR is the amount in satoshis taken from the internal wallet to fund the channel\&. The string \fIall\fR can be used to specify all available funds\&. This value must be greater than the dust limit, currently set to 546\&. And it must be less than 1<<24 (approximately 0\&.16778 BTC)\&.
.SH "RETURN VALUE"
.sp
On success, the \fItx\fR and \fItxid\fR of the transaction is returned, as well as the \fIchannel_id\fR of the newly created channel\&. On failure, an error is reported and the channel is not funded\&.
.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 arror\&.
.RE
.sp
The above error may include a descriptive message indicating:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fIid\fR
is invalid\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
There are not enough funds in the internal wallet to create the transaction\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The maximum allowed funding amount is exceeded\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIsatoshi\fR
is less than the dust limit\&.
.RE
.sp
Failure may also occur if \fBlightningd\fR and the peer cannot agree on channel parameters (funding limits, channel reserves, fees, etc\&.)\&.
.SH "SEE ALSO"
.sp
lightning\-connect(7), lightning\-listfunds(), lightning\-listpeers(7)
.SH "RESOURCES"
.sp
Main web site: https://github\&.com/ElementsProject/lightning