openchannel_signed -- Command to conclude a channel open
SYNOPSIS
openchannel_signed channel_id signed_psbt
DESCRIPTION
openchannel_signed is a low level RPC command which concludes a channel open with the specified peer. It uses the v2 openchannel protocol, which allows for interactive transaction construction.
This command should be called after openchannel_update returns commitments_secured true.
This command will broadcast the finalized funding transaction, if we receive valid signatures from the peer.
- channel_id (hash): Id of the channel.
- signed_psbt (string): The PSBT returned from
openchannel_update(where commitments_secured was true) with partial signatures or finalized witness stacks included for every input that we contributed to the PSBT.
RETURN VALUE
On success, an object is returned, containing:
- channel_id (hash): The channel id of the channel.
- tx (hex): The funding transaction.
- txid (txid): The txid of the tx.
ERRORS
On error, the returned object will contain code and message properties, with code being one of the following:
- -32602: If the given parameters are wrong.
- -1: Catchall nonspecific error.
- 303: Funding transaction broadcast failed.
- 305: Peer is not connected.
- 309: PSBT missing required fields.
- 311: Unknown channel id.
- 312: Channel in an invalid state
AUTHOR
Lisa Neigut <[email protected]> is mainly responsible.
SEE ALSO
lightning-openchannel_init(7), lightning-openchannel_update(7), lightning-openchannel_abort(7), lightning-openchannel_bump(7), lightning-fundchannel_start(7), lightning-fundchannel_complete(7), lightning-fundchannel(7), lightning-fundpsbt(7), lightning-utxopsbt(7), lightning-multifundchannel(7)
RESOURCES
Main web site: https://github.com/ElementsProject/lightning
EXAMPLES
Example 1:
Request:
lightning-cli openchannel_signed -k "channel_id"="channelid0111200111200111200111200111200111200111200111200111200" "signed_psbt"="cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000"
{
"id": "example:openchannel_signed#1",
"method": "openchannel_signed",
"params": {
"channel_id": "channelid0111200111200111200111200111200111200111200111200111200",
"signed_psbt": "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000"
}
}
Response:
{
"tx": "02000000000101sgpsbt11000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000110001100011000",
"txid": "txidocsigned1011000110001100011000110001100011000110001100011000",
"channel_id": "channelid0111200111200111200111200111200111200111200111200111200"
}
Example 2:
Request:
lightning-cli openchannel_signed "b020c1c6818daf024954c9ee578caad058cbcae7dd75b2c4d38b8f6f81901ff5" "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000"
{
"id": "example:openchannel_signed#2",
"method": "openchannel_signed",
"params": [
"b020c1c6818daf024954c9ee578caad058cbcae7dd75b2c4d38b8f6f81901ff5",
"cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000"
]
}
Response:
{
"tx": "02000000000101sgpsbt12000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000120001200012000",
"txid": "txidocsigned1012000120001200012000120001200012000120001200012000",
"channel_id": "channelid0111200111200111200111200111200111200111200111200111200"
}