{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "invreq",
    "label"
  ],
  "properties": {
    "invreq": {
      "type": "string",
      "description": "the bolt12 invoice_request string beginning with `lnr1`"
    },
    "label": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "integer"
        }
      ],
      "description": "the unique label to use for this invoice"
    },
    "amount_msat": {
      "type": "msat",
      "description": "required if the *offer* does not specify an amount at all, or specifies it in a different currency. Otherwise you may set it (e.g. to provide a tip), and if not it defaults to the amount contained in the offer (multiplied by *quantity* if any)"
    },
    "timeout": {
      "type": "u32",
      "description": "seconds to wait for the offering node to pay the invoice or return an error, default 90 seconds. This will also be the timeout on the invoice that is sent"
    },
    "quantity": {
      "type": "u64",
      "description": "quantity is is required if the offer specifies quantity_max, otherwise it is not allowed"
    }
  }
}