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.TH "LIGHTNING-TXPREPARE" "7" "" "" "lightning-txprepare"
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.SH NAME
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.SH SYNOPSIS
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\fBtxprepare\fR \fIoutputs\fR [\fIfeerate\fR] [\fIminconf\fR] [\fIutxos\fR]
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.SH DESCRIPTION
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The \fBtxprepare\fR RPC command creates an unsigned transaction which
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spends funds from c-lightning’s internal wallet to the outputs specified
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in \fIoutputs\fR\.
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The \fIoutputs\fR is the array of output that include \fIdestination\fR
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and \fIamount\fR({\fIdestination\fR: \fIamount\fR})\. Its format is like:
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[{address1: amount1}, {address2: amount2}]
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or
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[{address: \fIall\fR}]\.
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It supports the any number of outputs\.
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The \fIdestination\fR of output is the address which can be of any Bitcoin accepted
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type, including bech32\.
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The \fIamount\fR of output is the amount to be sent from the internal wallet
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(expressed, as name suggests, in amount)\. The string \fIall\fR can be used to specify
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all available funds\. Otherwise, it is in amount precision; it can be a whole
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number, a whole number ending in \fIsat\fR, a whole number ending in \fI000msat\fR,
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or a number with 1 to 8 decimal places ending in \fIbtc\fR\.
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\fBtxprepare\fR is similar to the first part of a \fBwithdraw\fR command, but
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supports multiple outputs and uses \fIoutputs\fR as parameter\. The second part
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is provided by \fBtxsend\fR\.
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\fIutxos\fR specifies the utxos to be used to fund the transaction, as an array
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of "txid:vout"\. These must be drawn from the node's available UTXO set\.
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.SH RETURN VALUE
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On success, an object with attributes \fIunsigned_tx\fR and \fItxid\fR will be
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returned\. You need to hand \fItxid\fR to \fBtxsend\fR or \fBtxdiscard\fR, as the
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inputs of this transaction are reserved until then, or until the daemon
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restarts\.
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\fIunsigned_tx\fR represents the raw bitcoin transaction (not yet signed)
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and \fItxid\fR represent the bitcoin transaction id\.
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On failure, an error is reported and the transaction is not created\.
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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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301: There are not enough funds in the internal wallet (including
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fees) to create the transaction\.
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.IP \[bu]
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302: The dust limit is not met\.
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.RE
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.SH AUTHOR
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Rusty Russell \fBNone\fR (\fI<rusty@rustcorp.com.au\fR)> is mainly responsible\.
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.SH SEE ALSO
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\fBlightning-withdraw\fR(7), \fBlightning-txsend\fR(7), \fBlightning-txdiscard\fR(7)
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.SH RESOURCES
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Main web site: \fBNone\fR (\fIhttps://github.com/ElementsProject/lightning\fR)
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