openproject/docs/api/apiv3/components/schemas/custom_object_model.yml

# Schema: Custom_ObjectModel
---
type: object
properties:
  id:
    type: integer
    description: The identifier
    readOnly: true
  value:
    type: string
    description: The value defined for this custom object
    readOnly: true
  _links:
    type: object
    required:
    - self
    properties:
      self:
        allOf:
        - "$ref": "./link.yml"
        - description: |-
            This custom object

            **Resource**: CustomObject            
          readOnly: true
example:
  _links:
    self:
      href: "/api/v3/custom_objects/1"
  _type: CustomObject
  value: Foo