Assign user to incident

curl --request POST \
  --url https://api.rootly.com/v1/incidents/{id}/assign_role_to_user \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "incidents",
    "attributes": {
      "user_id": "<string>",
      "incident_role_id": "<string>"
    }
  }
}'

{
  "data": {
    "id": "380cd47e-73bf-4b46-bf4a-172201ae570e",
    "type": "incidents",
    "attributes": {
      "parent_incident_id": null,
      "sequential_id": 1,
      "title": "Qui est blanditiis veritatis.",
      "slug": "qui-est-blanditiis-veritatis",
      "kind": "normal",
      "private": false,
      "summary": "Quae ea voluptatem. Rerum qui qui. Sed dolor animi.",
      "status": "started",
      "source": "web",
      "url": "http://localhost:3001/account/incidents/1-qui-est-blanditiis-veritatis",
      "short_url": null,
      "user": {
        "data": {
          "id": "292",
          "type": "users",
          "attributes": {
            "name": "Bernie Jacobson",
            "email": "lenny_skiles@botsford.test",
            "phone": null,
            "phone_2": null,
            "full_name": "Bernie Jacobson",
            "full_name_with_team": "[Stoltenberg, Okuneva and Bergnaum] Bernie Jacobson",
            "slack_id": null,
            "time_zone": "UTC",
            "updated_at": "2025-05-08T00:22:05.990-07:00",
            "created_at": "2025-05-08T00:22:05.506-07:00"
          },
          "relationships": {
            "email_addresses": {
              "data": [
                {
                  "id": "f6d079ec-c070-4e40-b654-6c5bb27c5124",
                  "type": "user_email_addresses"
                }
              ]
            },
            "phone_numbers": {
              "data": []
            },
            "devices": {
              "data": []
            }
          }
        }
      },
      "severity": {
        "data": {
          "id": "56e4caed-48c5-4ed9-8a55-e5e97d00fb98",
          "type": "severities",
          "attributes": {
            "name": "0w5po",
            "slug": "0w5po",
            "description": "Explicabo ex non voluptatem.",
            "severity": "medium",
            "color": "#E58A1F",
            "position": 1,
            "notify_emails": [],
            "slack_channels": [],
            "slack_aliases": [],
            "created_at": "2025-05-08T00:22:05.952-07:00",
            "updated_at": "2025-05-08T00:22:05.952-07:00"
          }
        }
      },
      "in_triage_by": null,
      "started_by": {
        "data": {
          "id": "292",
          "type": "users",
          "attributes": {
            "name": "Bernie Jacobson",
            "email": "lenny_skiles@botsford.test",
            "phone": null,
            "phone_2": null,
            "full_name": "Bernie Jacobson",
            "full_name_with_team": "[Stoltenberg, Okuneva and Bergnaum] Bernie Jacobson",
            "slack_id": null,
            "time_zone": "UTC",
            "updated_at": "2025-05-08T00:22:05.990-07:00",
            "created_at": "2025-05-08T00:22:05.506-07:00"
          },
          "relationships": {
            "email_addresses": {
              "data": [
                {
                  "id": "f6d079ec-c070-4e40-b654-6c5bb27c5124",
                  "type": "user_email_addresses"
                }
              ]
            },
            "phone_numbers": {
              "data": []
            },
            "devices": {
              "data": []
            }
          }
        }
      },
      "mitigated_by": null,
      "resolved_by": null,
      "closed_by": null,
      "cancelled_by": null,
      "mitigation_message": null,
      "resolution_message": null,
      "cancellation_message": null,
      "public_title": null,
      "duplicate_incident_id": null,
      "retrospective_progress_status": "not_started",
      "zoom_meeting_id": null,
      "zoom_meeting_start_url": null,
      "zoom_meeting_join_url": null,
      "zoom_meeting_password": null,
      "zoom_meeting_pstn_password": null,
      "zoom_meeting_h323_password": null,
      "zoom_meeting_global_dial_in_numbers": [],
      "shortcut_story_id": null,
      "shortcut_story_url": null,
      "shortcut_task_id": null,
      "shortcut_task_url": null,
      "asana_task_id": null,
      "asana_task_url": null,
      "github_issue_id": null,
      "github_issue_url": null,
      "gitlab_issue_id": null,
      "gitlab_issue_url": null,
      "jira_issue_key": null,
      "jira_issue_id": null,
      "jira_issue_url": null,
      "google_meeting_id": null,
      "google_meeting_url": null,
      "trello_card_id": null,
      "trello_card_url": null,
      "linear_issue_id": null,
      "linear_issue_url": null,
      "zendesk_ticket_id": null,
      "zendesk_ticket_url": null,
      "motion_task_id": null,
      "motion_task_url": null,
      "clickup_task_id": null,
      "clickup_task_url": null,
      "slack_channel_name": null,
      "slack_channel_id": null,
      "slack_channel_url": null,
      "slack_channel_short_url": null,
      "slack_channel_deep_link": null,
      "slack_channel_archived": false,
      "slack_last_message_ts": null,
      "service_now_incident_id": null,
      "service_now_incident_key": null,
      "service_now_incident_url": null,
      "opsgenie_incident_id": null,
      "opsgenie_incident_url": null,
      "opsgenie_alert_id": null,
      "opsgenie_alert_url": null,
      "victor_ops_incident_id": null,
      "victor_ops_incident_url": null,
      "pagerduty_incident_id": null,
      "pagerduty_incident_number": null,
      "pagerduty_incident_url": null,
      "mattermost_channel_id": null,
      "mattermost_channel_name": null,
      "mattermost_channel_url": null,
      "confluence_page_id": null,
      "confluence_page_url": null,
      "quip_page_id": null,
      "quip_page_url": null,
      "airtable_base_key": null,
      "airtable_table_name": null,
      "airtable_record_id": null,
      "airtable_record_url": null,
      "google_drive_id": null,
      "google_drive_parent_id": null,
      "google_drive_url": null,
      "sharepoint_page_id": null,
      "sharepoint_page_url": null,
      "datadog_notebook_id": null,
      "datadog_notebook_url": null,
      "freshservice_ticket_id": null,
      "freshservice_ticket_url": null,
      "freshservice_task_id": null,
      "freshservice_task_url": null,
      "scheduled_for": null,
      "scheduled_until": null,
      "in_triage_at": null,
      "started_at": "2025-05-08T00:22:05.959-07:00",
      "detected_at": null,
      "acknowledged_at": null,
      "mitigated_at": null,
      "resolved_at": null,
      "closed_at": null,
      "cancelled_at": null,
      "created_at": "2025-05-08T00:22:05.959-07:00",
      "updated_at": "2025-05-08T00:22:35.535-07:00",
      "labels": {}
    },
    "relationships": {
      "causes": {
        "data": []
      },
      "subscribers": {
        "data": [
          {
            "id": "ad6eac69-002e-486b-8e5a-7f21169aa0a9",
            "type": "incident_subscribers"
          }
        ]
      },
      "roles": {
        "data": [
          {
            "id": "c54124ed-0908-4d0b-b0b8-4f6b282a6957",
            "type": "incident_role_assignments"
          }
        ]
      },
      "environments": {
        "data": []
      },
      "incident_types": {
        "data": []
      },
      "services": {
        "data": []
      },
      "functionalities": {
        "data": []
      },
      "groups": {
        "data": []
      },
      "events": {
        "data": [
          {
            "id": "d80ab457-a6d0-4ea5-a49e-b4b963b062a9",
            "type": "incident_events"
          },
          {
            "id": "159726a0-cce5-489e-9e17-994182e2daae",
            "type": "incident_events"
          },
          {
            "id": "c3da3fb1-d824-4168-be69-dbac5a023f2b",
            "type": "incident_events"
          }
        ]
      },
      "action_items": {
        "data": []
      },
      "custom_field_selections": {
        "data": []
      },
      "feedbacks": {
        "data": []
      },
      "attachments": {
        "data": []
      },
      "slack_messages": {
        "data": []
      }
    }
  },
  "included": [
    {
      "id": "c54124ed-0908-4d0b-b0b8-4f6b282a6957",
      "type": "incident_role_assignments",
      "attributes": {
        "incident_role": {
          "data": {
            "id": "daa87c68-f267-4a48-98a9-d1309f019fd2",
            "type": "incident_roles",
            "attributes": {
              "slug": "eos-qui-dolores-tenetur",
              "name": "Eos qui dolores tenetur.",
              "summary": null,
              "description": null,
              "position": 1,
              "optional": false,
              "enabled": true,
              "allow_multi_user_assignment": false,
              "created_at": "2025-05-08T00:22:12.037-07:00",
              "updated_at": "2025-05-08T00:22:12.037-07:00"
            }
          }
        },
        "user": {
          "data": {
            "id": "290",
            "type": "users",
            "attributes": {
              "name": "Marshall Durgan",
              "email": "clemmie.kuhic@rogahn-volkman.example",
              "phone": null,
              "phone_2": null,
              "full_name": "Marshall Durgan",
              "full_name_with_team": "[Stoltenberg, Okuneva and Bergnaum] Marshall Durgan",
              "slack_id": null,
              "time_zone": "UTC",
              "updated_at": "2025-05-08T00:22:35.376-07:00",
              "created_at": "2025-05-08T00:22:04.454-07:00"
            },
            "relationships": {
              "email_addresses": {
                "data": [
                  {
                    "id": "a272fa03-d856-4888-9b20-1f468f64e2e4",
                    "type": "user_email_addresses"
                  }
                ]
              },
              "phone_numbers": {
                "data": []
              },
              "devices": {
                "data": []
              }
            }
          }
        }
      }
    }
  ]
}