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API Changelog

While we endeavour not to change the API in a backwards-incompatible way, this is not always possible. This page contains a history of changes to the API.

Production
These changes are live in both production and staging environments.
Staging
Changes marked with this badge are already live in the staging environment, but have not yet been released in the production environment. The date represents when the change will become available in production.
Not yet released
These changes are not yet available in either environment, but are included to warn of an upcoming change to the API.

To learn more about our environments, see the introduction to the API.

3rd May 2022 ​

  • The scenario protected attribute is deprecated and has been split into two separate attributes: read_only and keep_compatible. The protected attribute continues to be supported as an alias of read_only, and scenarios marked as protected will behave as they did before.

5th April 2022 ​

  • Scenarios should no longer be given a title or description attribute. If you wish to store such data with your scenarios, please use the scenario metadata.

    {
      "scenario": {
        "metadata": {
          "title": "My scenario"
        }
      }
    }

    For the moment, title and description continue to be supported, and will result in the corresponding metadata keys being set. This feature will be removed later in May 2022.

    Example request
    PUT /api/v3/scenarios/12345 HTTP/2
    Host: engine.energytransitionmodel.com
    Accept: application/json

    {
      "scenario": {
        "title": "My scenario",
        "description": "A description"
      },
      "detailed": true
    }
    Example response
    {
      "id": 12345,
      // ...
      "title": "My scenario",
      "description": "A description"
      "metadata": {
        "title": "My scenario",
        "description": "A description"
      }
    }

1st February 2022 ​

  • Scenarios marked as protected are now read-only. Changes to a protected scenario are not permitted and will be rejected with a 403 Forbidden response. Read more →
  • Inputs may now contain a disabled_by attribute which lists other input keys in an array. The input will be disabled if any of the specified inputs have a value provided by the user. Read more →
  • Old node endpoints /api/v3/converters and /api/v3/converters/{node_id} have been removed. You can still access this data by first creating a scenario.