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lightning-openchannel\_update -- Command to update a collab channel open
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========================================================================
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SYNOPSIS
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--------
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**openchannel_update** *channel_id* *psbt*
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DESCRIPTION
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-----------
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`openchannel_update` is a low level RPC command which continues an open
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channel, as specified by *channel_id*. An updated *psbt* is passed in; any
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changes from the PSBT last returned (either from `openchannel_init` or
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a previous call to `openchannel_update`) will be communicated to the peer.
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Must be called after `openchannel_init` and before `openchannel_signed`.
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Must be called until *commitments_secured* is returned as true, at which point
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`openchannel_signed` should be called with a signed version of the PSBT
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returned by the last call to `openchannel_update`.
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*channel_id* is the id of the channel.
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*psbt* is the updated PSBT to be sent to the peer. May be identical to
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the PSBT last returned by either `openchannel_init` or `openchannel_update`.
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RETURN VALUE
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------------
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On success, returns the *channel_id* for this channel; an updated, potentially
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complete *psbt* for this channel's funding transaction; and the flag
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*commitments_secured*, which indicates the completeness of the returned *psbt*.
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If *commitments_secured* is true, caller should proceed with signing the
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returned PSBT and calling `openchannel_signed` to complete the channel open.
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If *commitments_secured* is true, will also return:
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- The derived *channel_id*.
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- A *close_to* script, iff a `close_to` address was provided to
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`openchannel_init` and the peer supports `option_upfront_shutdownscript`.
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- The *funding_outnum*, the index of the funding output for this channel
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in the funding transaction.
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- -32602: If the given parameters are wrong.
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- -1: Catchall nonspecific error.
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- 305: Peer is not connected.
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- 309: PSBT missing required fields
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- 311: Unknown channel id.
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SEE ALSO
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--------
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lightning-openchannel\_update(7), lightning-openchannel\_signed(7),
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lightning-fundchannel\_start(7), lightning-fundchannel\_complete(7),
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lightning-fundchannel(7), lightning-fundpsbt(7), lightning-utxopsbt(7),
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lightning-multifundchannel(7)
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AUTHOR
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------
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@niftynei <<niftynei@gmail.com>> is mainly responsible.
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RESOURCES
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---------
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Main web site: <https://github.com/ElementsProject/lightning>
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