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Receiving the history of issued invoices

URL

POST https://w3s.webmoney.com/json/V1/GetOutInvoices.ashx

Headers

Request body (JSON)

{
  "reqn": 1730486400000,
  "wminvid": 0,
  "orderid": 0,
  "datestart": "2025-09-01T00:00:00",
  "datefinish": "2025-10-02T23:59:59" 
}

Fields

*. Field *. Type Description
reqn long Request number (recommended: Unix time in ms)
wminvid long Invoice number in WebMoney (> 0 — other filters are ignored), otherwise 0
orderid long Merchant invoice number (used if wminvid = 0)
datestart DateTime Period start (ISO 8601: YYYY-MM-DDThh:mm:ss), required if wminvid = 0
datefinish DateTime Period end (ISO 8601: YYYY-MM-DDThh:mm:ss), required if wminvid = 0

Notes:

  • The merchant’s purse is derived from the JWT and is not passed in the request body.
  • If wminvid > 0, the fields orderid, datestart, and datefinish are ignored.

Example of a successful response

{
  "reqn": 1730486400000,
  "invoices": [
    {
      "id": 987654321,
      "ts": 1234567890,
      "orderid": 1730486400000,
      "customerwmid": "111122223333",
      "storepurse": "Z123456789012",
      "amount": 0.02,
      "desc": "Test invoice",
      "address": "",
      "period": 0,
      "expiration": 0,
      "state": 2,
      "datecrt": "2025-10-02T12:34:56.789Z",
      "dateupd": "2025-10-03T09:10:11.123Z",
      "wmtranid": 555777999
    }
  ],
  "retval": 0,
  "retdesc": "OK" 
}

Notes on response:

  • datecrt/dateupd — ISO 8601, UTC.

Example of an error (partial data already returned)

If an error occurs after the invoices array has started, the response ends with an error flag.

{
  "reqn": 1730486400000,
  "invoices": [
    {
      "id": 987654321,
      "ts": 1234567890,
      "orderid": 1730486400000,
      "customerwmid": "111122223333",
      "storepurse": "Z123456789012",
      "amount": 0.02,
      "desc": "Test invoice",
      "address": "",
      "period": 0,
      "expiration": 0,
      "state": 2,
      "datecrt": "2025-10-02T12:34:56.789Z",
      "dateupd": "2025-10-03T09:10:11.123Z",
      "wmtranid": 555777999
    }
  ],
  "retval": -2,
  "retdesc": "Partial data followed by error: <description>" 
}

Error examples

401 Unauthorized:

{
  "retval": 401,
  "retdesc": "Authorization error: <description>" 
}

403 Forbidden:

{
  "retval": 403,
  "retdesc": "Access denied: <description>" 
}

404 Not Found:

{
  "retval": 404,
  "retdesc": "Resource not found: <description>" 
}

500 Internal Server Error:

{
  "retval": 500,
  "retdesc": "Server error: <description>" 
}

Possible return codes

*. Code *. Description
0 Ok
401 Authorization error
405 Method not allowed (only POST)
-3 Request processing error
... Other codes are described in Interface X4