Settle order

An admin can settle an order, most of the time this is done when admin is solving a dispute, for this the admin will need to send an order message to Mostro with action admin-settle with the id of the order like this:

[
  {
    "order": {
      "version": 1,
      "id": "<Order Id>",
      "action": "admin-settle",
      "payload": null
    }
  },
  null
]

Bond resolution payload

When solving a dispute, the admin can optionally slash one or both parties' bonds independently from the trade outcome (settle vs. cancel). To do this, the payload is set to a bond_resolution object with two booleans, slash_seller and slash_buyer:

[
  {
    "order": {
      "version": 1,
      "id": "<Order Id>",
      "action": "admin-settle",
      "payload": {
        "bond_resolution": {
          "slash_seller": false,
          "slash_buyer": true
        }
      }
    }
  },
  null
]

Accepted combinations on admin-settle:

• { "slash_seller": false, "slash_buyer": false } — settle without slashing any bond
• { "slash_seller": true, "slash_buyer": false } — settle and slash the seller's bond
• { "slash_seller": false, "slash_buyer": true } — settle and slash the buyer's bond
• { "slash_seller": true, "slash_buyer": true } — settle and slash both bonds
• payload: null — legacy clients; interpreted server-side as "no slash"

bond_resolution is only valid on admin-settle and admin-cancel; it is rejected on every other action.

Whenever a side is slashed and the operator has configured slash_node_share_pct < 1.0, the non-slashed counterparty is subsequently asked to provide a Lightning invoice for their share of the bond via Bond payout invoice.

Mostro response

Mostro will send this message to the both parties buyer/seller and to the admin:

[
  {
    "order": {
      "version": 1,
      "id": "<Order Id>",
      "action": "admin-settled",
      "payload": null
    }
  },
  null
]

Mostro updates addressable dispute event

Mostro updates the addressable dispute event with status settled:

[
  "EVENT",
  "RAND",
  {
    "id": "098e8622eae022a79bc793984fccbc5ea3f6641bdcdffaa031c00d3bd33ca5a0",
    "pubkey": "<Mostro's pubkey>",
    "created_at": 1703274022,
    "kind": 38386,
    "tags": [
      ["d", "efc75871-2568-40b9-a6ee-c382d4d6de01"],
      ["s", "settled"],
      ["y", "mostro", "[Mostro instance name]"],
      ["z", "dispute"]
    ],
    "content": "",
    "sig": "<Mostro's signature>"
  }
]

Payment of the buyer's invoice

At this point Mostro is trying to pay the buyer's invoice, right after complete the payment Mostro will update the status of the order addressable event to success:

[
  "EVENT",
  "RAND",
  {
    "id": "6170892aca6a73906142e58a9c29734d49b399a3811f6216ce553b4a77a8a11e",
    "pubkey": "<Mostro's pubkey>",
    "created_at": 1703274032,
    "kind": 38383,
    "tags": [
      ["d", "<Order Id>"],
      ["k", "sell"],
      ["f", "VES"],
      ["s", "success"],
      ["amt", "7851"],
      ["fa", "100"],
      ["pm", "face to face"],
      ["premium", "1"],
      ["y", "mostro", "[Mostro instance name]"],
      ["z", "order"]
    ],
    "content": "",
    "sig": "<Mostro's signature>"
  }
]