made_cashless_payment

A cashless payment at a bar or stand: revenue on the chip.

Positive revenue, with the chip as identifier. The touch may be carried so bar revenue can be attributed to the campaign that brought the person in.

Sent with	server, platform keys (see write keys)
Mode	strict: exactly the declared fields; an undeclared key, a wrong type or a missing required key quarantines the event
Version	2 (_schema_version on the stored row)
State	active
Required fields	none
Revenue	yes, positive; the revenue block is required to mean something and never accepted from a browser key
Identity evidence	none
Before consent	no

Fields

The activity's own fields, sent as features. Identifier and attribute fields are moved out of features by the processor; see identifiers and attributes.

Field	Type	Required	What happens to it	Meaning
category	string	no, may be null	stays in features	The category of what was paid for at the point of sale.
event_id	string	no, may be null	stays in features	The Eventix event the activity is about. Copied to the stream's _event_id column, so filters on an event are fast; it must be a plain string.
point_of_sale	string	no, may be null	stays in features	The bar or stand where the payment was made.
touch	object	no, may be null	stays in features	The campaign the activity came through; see the touch block. The same block on every revenue-bearing activity.
transaction_id	string	no, may be null	stays in features	The transaction in the cashless or payment system; makes a resend idempotent together with the activity id.

Example

One activity in a batch to POST /v1/activities, with debug so the answer says what the processor made of it. The envelope page explains every top-level field.

{
  "batch": [
    {
      "activity_id": "0192f1a4-4a94-7a1f-8000-4a94a1fd0000",
      "activity": "made_cashless_payment",
      "ts": "2026-10-17T20:00:00+02:00",
      "owner_ref": "own:own_01M4XX0033FV7QXDRB5BQBRPGR",
      "identifiers": [
        {
          "type": "chip",
          "value": "WB-0093",
          "role": "holder",
          "namespace": "payvent"
        }
      ],
      "revenue": {
        "amount": "45.00",
        "currency": "EUR"
      },
      "features": {
        "category": "drinks",
        "event_id": "3a114ef5-6105-48fd-aafc-0ae609d0536c",
        "point_of_sale": "Bar 3",
        "transaction_id": "trx_01M4XVBYC3FGXCPFRZEPGV20RZ"
      }
    }
  ],
  "debug": true
}

Try it

Sends this request from your browser. The key and the endpoint are kept in this browser only.

ServiceWrite key

POST /v1/activities{ "batch": [ { "activity_id": "0192f1a4-4a94-7a1f-8000-4a94a1fd0000", "activity": "made_cashless_payment", "ts": "2026-10-17T20:00:00+02:00", "owner_ref": "own:own_01M4XX0033FV7QXDRB5BQBRPGR", "identifiers": [ { "type": "chip", "value": "WB-0093", "role": "holder", "namespace": "payvent" } ], "revenue": { "amount": "45.00", "currency": "EUR" }, "features": { "category": "drinks", "event_id": "3a114ef5-6105-48fd-aafc-0ae609d0536c", "point_of_sale": "Bar 3", "transaction_id": "trx_01M4XVBYC3FGXCPFRZEPGV20RZ" } } ], "debug": true }

Versions

Version	Mode	Key classes	Change
1	strict	server, platform	first version
2 (current)	strict	server, platform	adds touch

A published version never changes; a change is a new version, and every stored row says which version it was checked against.