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130 lines
5.0 KiB
130 lines
5.0 KiB
'\" t
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.\" Title: lightning-invoice
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.\" Author: [see the "AUTHOR" section]
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 12/17/2018
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.\" Manual: \ \&
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.\" Source: \ \&
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.\" Language: English
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.\"
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.TH "LIGHTNING\-INVOICE" "7" "12/17/2018" "\ \&" "\ \&"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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lightning-invoice \- Command for accepting payments\&.
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.SH "SYNOPSIS"
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.sp
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\fBinvoice\fR \fImsatoshi\fR \fIlabel\fR \fIdescription\fR [\fIexpiry\fR] [\fIfallbacks\fR] [\fIpreimage\fR] [\fIexposeprivatechannels\fR]
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.SH "DESCRIPTION"
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.sp
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The \fBinvoice\fR RPC command creates the expectation of a payment of a given amount of milli\-satoshi: it returns a unique token which another lightning daemon can use to pay this invoice\&. This token includes a \fIroute hint\fR description of an incoming channel with capacity to pay the invoice, if any exists\&.
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.sp
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The \fImsatoshi\fR can be the string "any", which creates an invoice that can be paid with any amount\&.
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.sp
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The \fIlabel\fR must be a unique string or number (which is treated as a string, so "01" is different from "1"); it is never revealed to other nodes on the lightning network, but it can be used to query the status of this invoice\&.
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.sp
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The \fIdescription\fR is a short description of purpose of payment, e\&.g\&. \fI1 cup of coffee\fR\&. This value is encoded into the BOLT11 invoice and is viewable by any node you send this invoice to\&. It must be UTF\-8, and cannot use \fI\eu\fR JSON escape codes\&.
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.sp
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The \fIexpiry\fR is optionally the number of seconds the invoice is valid for\&. If no value is provided the default of 3600 (1 Hour) is used\&.
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.sp
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The \fIfallbacks\fR array is one or more fallback addresses to include in the invoice (in order from most\-preferred to least): note that these arrays are not currently tracked to fulfill the invoice\&.
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.sp
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The \fIpreimage\fR is a 64\-digit hex string to be used as payment preimage for the created invoice\&. By default, if unspecified, lightningd will generate a secure pseudorandom preimage seeded from an appropriate entropy source on your system\&. \fBIMPORTANT\fR: if you specify the \fIpreimage\fR, you are responsible, to ensure appropriate care for generating using a secure pseudorandom generator seeded with sufficient entropy, and keeping the preimage secret\&. This parameter is an advanced feature intended for use with cutting\-edge cryptographic protocols and should not be used unless explicitly needed\&.
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.sp
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The \fIexposeprivatechannels\fR includes unpublished channels in the selection of channels for the route hint; by default they are excluded\&.
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.SH "RETURN VALUE"
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.sp
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On success, a hash is returned as \fIpayment_hash\fR to be given to the payer, and the \fIexpiry_time\fR as a UNIX timestamp\&. It also returns a BOLT11 invoice as \fIbolt11\fR to be given to the payer\&.
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.sp
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On failure, an error is returned and no invoice is created\&. If the lightning process fails before responding, the caller should use lightning\-listinvoice(7) to query whether this invoice was created or not\&.
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.sp
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The following error codes may occur:
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\-1\&. Catchall nonspecific error\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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900\&. An invoice with the given
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\fIlabel\fR
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already exists\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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901\&. An invoice with the given
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\fIpreimage\fR
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already exists\&.
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.RE
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.sp
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One of the following warnings may occur (on success):
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fIwarning_offline\fR
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if no channel with a currently connected peer has the incoming capacity to pay this invoice
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fIwarning_capacity\fR
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if there is no channel at all with sufficient incoming capacity to pay this invoice\&.
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.RE
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.SH "AUTHOR"
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.sp
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Rusty Russell <rusty@rustcorp\&.com\&.au> is mainly responsible\&.
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.SH "SEE ALSO"
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.sp
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lightning\-listinvoice(7), lightning\-delinvoice(7), lightning\-getroute(7), lightning\-sendpay(7)\&.
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.SH "RESOURCES"
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.sp
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Main web site: https://github\&.com/ElementsProject/lightning
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