.TH "LIGHTNING-RESERVEINPUTS" "7" "" "" "lightning-reserveinputs"
.SH NAME
lightning-reserveinputs - Construct a transaction and reserve the UTXOs it spends
.SH SYNOPSIS

\fBreserveinputs\fR \fIoutputs\fR [\fIfeerate\fR] [\fIminconf\fR] [\fIutxos\fR]

.SH DESCRIPTION

The \fBreserveinputs\fR RPC command creates an unsigned PSBT which
spends funds from c-lightning’s internal wallet to the outputs specified
in \fIoutputs\fR\.


The \fIoutputs\fR is the array of output that include \fIdestination\fR
and \fIamount\fR({\fIdestination\fR: \fIamount\fR})\. Its format is like:
[{address1: amount1}, {address2: amount2}]
or
[{address: \fIall\fR}]\.
It supports any number of outputs\.


The \fIdestination\fR of output is the address which can be of any Bitcoin accepted
type, including bech32\.


The \fIamount\fR of output is the amount to be sent from the internal wallet
(expressed, as name suggests, in amount)\. The string \fIall\fR can be used to specify
all available funds\. Otherwise, it is in amount precision; it can be a whole
number, a whole number ending in \fIsat\fR, a whole number ending in \fI000msat\fR,
or a number with 1 to 8 decimal places ending in \fIbtc\fR\.


\fIfeerate\fR is an optional feerate to use\. It can be one of the strings
\fIurgent\fR (aim for next block), \fInormal\fR (next 4 blocks or so) or \fIslow\fR
(next 100 blocks or so) to use lightningd’s internal estimates: \fInormal\fR
is the default\.


Otherwise, \fIfeerate\fR is a number, with an optional suffix: \fIperkw\fR means
the number is interpreted as satoshi-per-kilosipa (weight), and \fIperkb\fR
means it is interpreted bitcoind-style as satoshi-per-kilobyte\. Omitting
the suffix is equivalent to \fIperkb\fR\.


\fIminconf\fR specifies the minimum number of confirmations that reserved UTXOs 
should have\. Default is 1\.


\fIutxos\fR specifies the utxos to be used to fund the transaction, as an array
of "txid:vout"\. These must be drawn from the node's available UTXO set\.

.SH RETURN VALUE

On success, an object with attributes \fIpsbt\fR and \fIfeerate_per_kw\fR will be
returned\. The inputs of the \fIpsbt\fR have been marked as reserved in the internal wallet\.


On failure, an error is reported and no UTXOs are reserved\.


The following error codes may occur:

.RS
.IP \[bu]
-1: Catchall nonspecific error\.
.IP \[bu]
301: There are not enough funds in the internal wallet (including
fees) to create the transaction\.
.IP \[bu]
302: The dust limit is not met\.

.RE
.SH AUTHOR

niftynei \fI<niftynei@gmail.com\fR> is mainly responsible\.

.SH SEE ALSO

\fBlightning-unreserveinputs\fR(7), \fBlightning-signpsbt\fR(7), \fBlightning-sendpsbt\fR(7)

.SH RESOURCES

Main web site: \fIhttps://github.com/ElementsProject/lightning\fR