lightning-fundchannel_start – Command for initiating channel establishment for a lightning channel¶
fundchannel_start id amount [feerate announce close_to push_msat]
fundchannel_start is a lower level RPC command. It allows a user to
initiate channel establishment with a connected peer.
id is the node id of the remote peer.
amount is the satoshi value that the channel will be funded at. This value MUST be accurate, otherwise the negotiated commitment transactions will not encompass the correct channel value.
feerate is an optional field. Sets the feerate for subsequent commitment transactions: see fundchannel.
announce whether or not to announce this channel.
close_to is a Bitcoin address to which the channel funds should be sent to
on close. Only valid if both peers have negotiated
close_to set to closing script iff is negotiated.
push_msat is the amount of millisatoshis to push to the channel peer at open. Note that this is a gift to the peer – these satoshis are added to the initial balance of the peer at channel start and are largely unrecoverable once pushed.
Note that the funding transaction MUST NOT be broadcast until after
channel establishment has been successfully completed by running
fundchannel_complete, as the commitment transactions for this channel
are not secured until the complete command succeeds. Broadcasting
transaction before that can lead to unrecoverable loss of funds.
On success, returns the funding_address and the scriptpubkey for the channel funding output.
close_to address was provided, will close to this address iff the
close_to address is
returned in the response. Otherwise, the peer does not support
On error the returned object will contain
code being one of the following:
- -32602: If the given parameters are wrong.
- -1: Catchall nonspecific error.
- 300: The amount exceeded the maximum configured funding amount.
- 301: The provided
push_msatis greater than the provided
- 304: Still syncing with bitcoin network
- 305: Peer is not connected.
- 306: Unknown peer id.
lightning-connect(7), lightning-fundchannel(7), lightning-fundchannel_complete(7), lightning-fundchannel_cancel(7)