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88 lines
3.1 KiB
88 lines
3.1 KiB
6 years ago
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LIGHTNING-LISTCHANNELS(7)
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=======================
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:doctype: manpage
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NAME
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----
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lightning-listchannels - Command to query active lightning channels in the entire network.
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SYNOPSIS
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--------
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*listchannels* ['short_channel_id']
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DESCRIPTION
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-----------
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The *listchannels* RPC command returns data on channels that are known to the
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node. Because channels may be bidirectional, up to 2 objects will be returned
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for each channel (one for each direction).
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If no 'short_channel_id' is supplied, then data on all lightning channels known
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to this node, are returned. These can be local channels or public channels
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broadcast on the gossip network.
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Supplying 'short_channel_id' will filter the results to only return data for
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known channels with a matching 'short_channel_id'.
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RETURN VALUE
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------------
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On success, an object with a "channels" key is returned containing a list of 0
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or more objects.
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Each object in the list contains the following data:
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- 'source' : The node providing entry to the channel, specifying the fees
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charged for using the channel in that direction.
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- 'destination' : The node providing the exit point for the channel.
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- 'short_channel_id' : The channel identifier.
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- 'public' : Boolean value, is publicly available. Non-local channels will only
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ever have this value set to true. Local channels are side-loaded by this node,
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rather than obtained through the gossip network, and so may have this value set
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to false.
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- 'satoshis' : Funds available in the channel.
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- 'message_flags' : Bitfield showing the presence of optional fields in the
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'channel_update' message (BOLT #7).
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- 'channel_flags' : Bitfields indicating the direction of the channel and
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signaling various options concerning the channel. (BOLT #7).
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- 'active' : Boolean value, is available for routing. This is linked to the
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channel flags data, where if the second bit is set, signals a channels
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temporary unavailability (due to loss of connectivity) OR permanent
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unavailability where the channel has been closed but not settlement on-chain.
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- 'last_update' : Unix timestamp (seconds) showing when the last channel_update
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message was received.
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- 'base_fee_millisatoshi' : The base fee (in millisatoshi) charged for the
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HTLC (BOLT #2).
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- 'fee_per_millionth' : The amount (in millionths of a satoshi) charged per
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transferred satoshi (BOLT #2).
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- 'delay' : The number of blocks delay required to wait for on-chain settlement
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when unilaterally closing the channel (BOLT #2).
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If 'short_channel_id' is supplied and no matching channels are found, a
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"channels" object with an empty list is returned.
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ERRORS
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------
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If 'short_channel_id' is not a valid short_channel_id, an error message will be
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returned:
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----
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{ "code" : -32602,
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"message" : "'short_channel_id' should be a short channel id, not '...'" }
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----
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AUTHOR
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------
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Michael Hawkins <michael.hawkins@protonmail.com>.
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SEE ALSO
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--------
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lightning-fundchannel(7)
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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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Lightning RFC site
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- BOLT #2: https://github.com/lightningnetwork/lightning-rfc/blob/master/02-peer-protocol.md
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- BOLT #7: https://github.com/lightningnetwork/lightning-rfc/blob/master/07-routing-gossip.md
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