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130 lines
3.7 KiB
Groff
Generated
130 lines
3.7 KiB
Groff
Generated
.TH "LIGHTNING-FETCHINVOICE" "7" "" "" "lightning-fetchinvoice"
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.SH NAME
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lightning-fetchinvoice - Command for fetch an invoice for an offer
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.SH SYNOPSIS
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\fB(WARNING: experimental-offers only)\fR
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\fBfetchinvoice\fR \fIoffer\fR [\fImsatoshi\fR] [\fIquantity\fR] [\fIrecurrence_counter\fR] [\fIrecurrence_start\fR] [\fIrecurrence_label\fR] [\fItimeout\fR]
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.SH DESCRIPTION
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The \fBfetchinvoice\fR RPC command contacts the issuer of an \fIoffer\fR to get
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an actual invoice that can be paid\. It highlights any changes between the
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offer and the returned invoice\.
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The offer must not contain \fIsend_invoice\fR; see \fBlightning-sendinvoice\fR(7)\.
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\fImsatoshi\fR is required if the \fIoffer\fR does not specify
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an amount at all, otherwise it is not allowed\.
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\fIquantity\fR is is required if the \fIoffer\fR specifies
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\fIquantity_min\fR or \fIquantity_max\fR, otherwise it is not allowed\.
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\fIrecurrence_counter\fR is required if the \fIoffer\fR
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specifies \fIrecurrence\fR, otherwise it is not allowed\.
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\fIrecurrence_counter\fR should first be set to 0, and incremented for
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each successive invoice in a given series\.
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\fIrecurrence_start\fR is required if the \fIoffer\fR
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specifies \fIrecurrence_base\fR with \fIstart_any_period\fR set, otherwise it
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is not allowed\. It indicates what period number to start at\.
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\fIrecurrence_label\fR is required if \fIrecurrence_counter\fR is set, and
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otherwise is not allowed\. It must be the same as prior fetchinvoice
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calls for the same recurrence, as it is used to link them together\.
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\fItimeout\fR is an optional timeout; if we don't get a reply before this
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we fail (default, 60 seconds)\.
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.SH RETURN VALUE
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On success, an object as follows is returned:
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.RS
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.IP \[bu]
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\fIinvoice\fR: the bolt12-encoded invoice string, starting with "lni1"\.
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.IP \[bu]
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\fIchanges\fR: an object detailing changes between the offer and invoice\.
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.RE
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Optionally:
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.RS
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.IP \[bu]
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\fInext_period\fR: an object returned for recurring invoices if the next
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period is under the recurrence_limit (if any)\.
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.RE
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The \fIchanges\fR object can have and of the following members:
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.RS
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.IP \[bu]
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\fIdescription_appended\fR: extra characters appended to the \fIdescription\fR field\.
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.IP \[bu]
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\fIdescription\fR: a completely replaced \fIdescription\fR field\.
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.IP \[bu]
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\fIvendor_removed\fR": the offer vendor field, which has been omitted from the invoice\.
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.IP \[bu]
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\fIvendor\fR": the offer vendor field, which has changed from the invoice\.
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.IP \[bu]
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\fImsat\fR": the amount, if different from the offer amount multiplied
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by any \fIquantity\fR (or the offer had no amount, or was not in BTC)\.
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.RE
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The \fInext_period\fR object has at least the following members:
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.RS
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.IP \[bu]
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\fIcounter\fR: the index of the next period to be fetchinvoice\.
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.IP \[bu]
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\fIstarttime\fR: the time that the next period starts (seconds since 1970)
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.IP \[bu]
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\fIendtime\fR: the time that the next period ends (seconds since 1970)
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.IP \[bu]
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\fIpaywindow_start\fR: the earliest time that the next invoice can be fetched (seconds since 1970)
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.IP \[bu]
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\fIpaywindow_end\fR: the latest time that the next invoice can be fetched (seconds since 1970)
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.RE
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The following error codes may occur:
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.RS
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.IP \[bu]
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-1: Catchall nonspecific error\.
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.IP \[bu]
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1002: Offer has expired\.
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.IP \[bu]
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1003: Cannot find a route to the node making the offer\.
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.IP \[bu]
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1004: The node making the offer returned an error message\.
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.IP \[bu]
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1005: We timed out trying to fetch an invoice\.
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.RE
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.SH AUTHOR
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Rusty Russell \fI<rusty@rustcorp.com.au\fR> is mainly responsible\.
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.SH SEE ALSO
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\fBlightning-sendinvoice\fR(7), \fBlightning-pay\fR(7)\.
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.SH RESOURCES
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Main web site: \fIhttps://github.com/ElementsProject/lightning\fR
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\" SHA256STAMP:a96df8e4f480c093c83268688d683db82575341ecb4176ab586eae9baf69d9c1
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