Event Data reference

Where things are kept

What	Where	Id
Master data records	Object service, private or public	`NGE.POWER.DE`
Event lists	Data service, private or public, `_type` `VarEventList`; `_source` says where the events are (private, common or public)	`NGE.POWER.DE:BROKER_QUOTES`
Events	Event service, private, public or common	`NGE.POWER.DE:BROKER_QUOTES:20261105_BRK1_2026M12`
Event curves	Data service, `_type` `VarEventCurve`	`NGE.POWER.DE:BROKER_CURVE`
Event timeseries	Data service, `_type` `VarEventTimeSeries`	`NGE.WIND.DE:NORDSEE_WEST_DAILY`
Event options	Data service, `_type` `VarEventOptions`	`NGE.GAS.TTF:EFO_OPTIONS`

A definition is kept as a property of its master data record, like any other curve or timeseries, and the platform builds it from the events when it is read.

Definitions

An event curve as saved by the extension:

{
  "_id": "NGE.POWER.DE",
  "BROKER_CURVE": {
    "_id": "BROKER_CURVE",
    "_type": "VarEventCurve",
    "event": "NGE.POWER.DE:BROKER_QUOTES",
    "name": "German power broker curve",
    "property": "mid",
    "tenor": "absolute",
    "calendar": "#REOMHENG",
    "currency": "EUR",
    "units": "MWh"
  }
}

Field	Curve	Timeseries	Options	Meaning
`event`	yes	yes	yes	The event list id.
`source`	yes	yes	yes	`common` when the list's events are in common.
`property`	yes	yes		The value field.
`tenor`	yes		yes	The tenor field.
`calendar`	yes	yes		The expiry calendar (curve) or the calendar (timeseries).
`holidayCalendar`	yes		yes	The publishing days.
`index`		yes		`start`, `end`, `time` or a date field.
`valueTransformation`	yes			An ODSL expression on `value`.
`strike`, `callPut`, `callValue`, `putValue`, `value`, `columns`			yes	The option fields, the main value and the columns.
`filter`	yes	yes	yes	A JSON filter on the events, as text.
`timezone`, `currency`, `units`, `name`, `description`	yes	yes	yes

The same definitions in ODSL: EventCurve, EventTimeSeries and EventOptions.

Imported events

Each CSV row is saved as an event of the list, through the object service, 500 at a time:

{
  "_id": "NGE.WIND.DE",
  "OUTPUT": [
    {"_type": "VarEvent", "_id": "20261101000000_Nordsee_West",
     "eventtime": {"$date": "2026-10-31T23:00:00.000Z"}, "timezone": "Europe/Berlin",
     "eventtype": "#Event", "site": "Nordsee West", "mw": 212.4, "availability": 98.5}
  ]
}

The list is created with the first events when it does not exist. A dataset id is sent as dsid and stored as _dsid. See Events for more about events on the platform.

Platform calls

What	Call
Lists by master data	`GET data/v1/private` (or `public`) with `_filter` on `_type` `VarEventList` (and `_source` `common` for Common) and `_objfilter` on the records
Lists by their events	`GET event/v1/{source}` with `_aggregate`: a `$match` on the list id, `_dsid`, fields and dates, grouped by list
A list's events	`GET event/v1/{source}` with `_filter` on `event`, `_sort`, `_skip` and `_limit`
Definitions of a list	`GET data/v1/private` and `public` with `_filter` on the type and `event`
Save a definition or import events	`POST object/v1/private` with the record id and the property
Delete a definition	`DELETE data/v1/private/ID/*`, then the property is removed from the record
What you may do with a list's events	`GET policy/v1?_function=rights&service=event&key=LIST&source=SOURCE`
Delete an event	`DELETE event/v1/SOURCE/OBJ:LIST:EVENTID/*` (every version)
Built curve or options	`GET data/v1/private/ID` (ondates), then `ID:ONDATE`
Built timeseries	`GET data/v1/private/ID?_range=last(100)`
Tenor history	`GET data/v1/private/ID:TENOR?_range=last(250)`

The REST services are described in Event service.

Opened from a Home page task

The extension adds three tasks to the Home page: Import events from a CSV file, Find and chart events and Build a curve or timeseries from events. A task can open Event Data ready for the job with these view properties:

Property	Value	Effect
`ACTION`	`import`	Highlights the drop area (a browser cannot open a file chooser by itself).
`TAB`	`events`	Finds lists by their events.
`SOURCE`	`private`, `common` or `public`	Where to look.
`TEXT`	text	The search text.
`DSID`	a dataset id	Finds the lists with events of that dataset.
`LIST`	an event list id	Opens the list.

Access

Action	Needs
Use the screens	The feature policy `extension.odsl.event_data`.
See events	Read access to the events; common events only for the datasets your company is licensed for.
Import events and save definitions	Permission to update the master data record.
Delete events	The delete action on the event service in a security policy that covers the events. Common events can normally only be read.

Troubleshooting

What you see	Why, and what to do
A common list opens with no events	Your company is not licensed for that dataset, or the dates exclude every event.
No events between ... in a preview	Clear Events from to read the latest events, or check the filter.
None of the events has a number in ...	The value field holds text: choose another field.
A preview with no tenors or options	Check the tenor, strike and call or put fields.
The filter must be a JSON object	Write the filter as JSON with quoted names, for example `{"site": "Nordsee West"}`.
A save or import fails	The message after Request failed is the platform's reason, for example a missing permission on the record.
Imported rows replace each other	The event ids are the same: tick more columns under Event id.
No tick boxes on the Events tab	You may not delete this list's events, or they are common events.
Some events were not deleted	Your delete rights do not cover them; the message gives the platform's reason.

Where things are kept​

Definitions​

Imported events​

Platform calls​

Opened from a Home page task​

Access​

Troubleshooting​