lightning-listforwards -- Command showing all htlcs and their information

SYNOPSIS

listforwards [status] [in_channel] [out_channel] [index [start] [limit]]

DESCRIPTION

The listforwards RPC command displays all htlcs that have been attempted to be forwarded by the Core Lightning node.

status (string, optional) (one of "offered", "settled", "local_failed", "failed"): If specified, then only the forwards with the given status are returned.
in_channel (short_channel_id, optional): Only the matching forwards on the given inbound channel are returned.
out_channel (short_channel_id, optional): Only the matching forwards on the given outbount channel are returned.
index (string, optional) (one of "created", "updated"): If neither in_channel nor out_channel is specified, it controls ordering. The default is created. (added v23.11)
start (u64, optional): If index is specified, start may be specified to start from that value, which is generally returned from lightning-wait(7). (added v23.11)
limit (u32, optional): If index is specified, limit can be used to specify the maximum number of entries to return. (added v23.11)

RETURN VALUE

On success, an object containing forwards is returned. It is an array of objects, where each object contains:

created_index (u64): 1-based index indicating order this forward was created in. (added v23.11)
in_channel (short_channel_id): The channel that received the HTLC.
in_msat (msat): The value of the incoming HTLC.
status (string) (one of "offered", "settled", "local_failed", "failed"): Still ongoing, completed, failed locally, or failed after forwarding.
received_time (number): The UNIX timestamp when this was received (may be zero for old forwards).
in_htlc_id (u64, optional): The unique HTLC id the sender gave this (not present if incoming channel was closed before upgrade to v22.11).
out_channel (short_channel_id, optional): The channel that the HTLC (trying to) forward to.
out_htlc_id (u64, optional): The unique HTLC id we gave this when sending (may be missing even if out_channel is present, for old forwards before v22.11).
updated_index (u64, optional): 1-based index indicating order this forward was changed (only present if it has changed since creation). (added v23.11)
style (string, optional) (one of "legacy", "tlv"): Either a legacy onion format or a modern tlv format.

If out_msat is present:

fee_msat (msat): The amount this paid in fees.
out_msat (msat): The amount we sent out the out_channel.

If status is "settled" or "failed":

resolved_time (number): The UNIX timestamp when this was resolved.

If status is "local_failed" or "failed":

failcode (u32, optional): The numeric onion code returned.
failreason (string, optional): The name of the onion code returned.

AUTHOR

Rene Pickhardt <[email protected]> is mainly responsible.

RESOURCES

Main web site: https://github.com/ElementsProject/lightning

EXAMPLES

Example 1:

Request:

lightning-cli listforwards -k "in_channel"="109x1x1" "out_channel"="123x1x1" "status"="settled"

{
  "id": "example:listforwards#1",
  "method": "listforwards",
  "params": {
    "in_channel": "109x1x1",
    "out_channel": "123x1x1",
    "status": "settled"
  }
}

Response:

{
  "forwards": [
    {
      "created_index": 12,
      "updated_index": 7,
      "in_channel": "109x1x1",
      "in_htlc_id": 19,
      "out_channel": "123x1x1",
      "out_htlc_id": 2,
      "in_msat": 50000501,
      "out_msat": 50000000,
      "fee_msat": 501,
      "status": "settled",
      "style": "tlv",
      "received_time": 1738000000,
      "resolved_time": 1738500000
    },
    {
      "created_index": 13,
      "updated_index": 8,
      "in_channel": "109x1x1",
      "in_htlc_id": 20,
      "out_channel": "123x1x1",
      "out_htlc_id": 3,
      "in_msat": 50000501,
      "out_msat": 50000000,
      "fee_msat": 501,
      "status": "settled",
      "style": "tlv",
      "received_time": 1738010000,
      "resolved_time": 1738510000
    }
  ]
}

Example 2: