Object Model

Common Fields

API objects have a type field indicating their object type. Each object in the API may be given an identifier, indicated via its id field, and will typically be addressable via a URI.

Many objects will also have a created_at field indicating the object's creation date.

Dates and Timestamps

All temporal fields in the API are encoded as ISO 8601 and are by definition always treated as UTC. The most common time fields are created_at and updated_at.

created_atThe time the object was created. In most, but not all cases, this is the time the object was created according to the API server.
updated_atThe time the object was last updated according to the API server.

Optional Fields

Unpopulated optional data is returned as follows

  • Number, String, and Boolean types may be returned as having null values.
  • Arrays and Objects may be returned as empty ([] {})

In general, clients should be able to handle null and empty fields.


Some object types have a meta field that allows clients to get more info about an object.