Last Trade Index

Defines the last-trade-index action used to retrieve the user's last trade_index.

Request

Client sends a NIP-44 direct message (kind 14) to Mostro with the following decrypted content. The request sends a null payload to indicate that the client is querying for the last trade index.

[
  {
    "restore": {
      "version": 2,
      "action": "last-trade-index",
      "payload": null
    }
  },
  null,
  null
]

Response

Mostro responds with the user's last trade index as a u32 directly in the trade_index field. If the user has never created a trade, the value SHOULD be 1.

{
  "restore": {
    "version": 2,
    "action": "last-trade-index",
    "trade_index": 42,
    "payload": null
  }
}

Fields

• restore.version: Protocol version — 1 on the gift-wrap transport (DEPRECATED), 2 on the NIP-44 direct transport. Current is 2.
• restore.action: Must be last-trade-index.
• restore.trade_index (response): u32 representing the last trade_index for the user. 1 if none.
• restore.payload (response): Must be null.

Example

Client requests the last trade index and receives 7, meaning the next trade the client creates SHOULD use trade_index = 8.

{
  "restore": {
    "version": 2,
    "action": "last-trade-index",
    "trade_index": 7,
    "payload": null
  }
}