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Traverse from Workflow run

POST
/v1/object-types/hospitality.workflow_run/objects/{id}/traverse
curl --request POST \
  --url https://api.aerandil.com/v1/object-types/hospitality.workflow_run/objects/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/traverse \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "as_of": "2026-04-15T12:00:00Z", "branch": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "cursor": "example", "direction": "out", "limit": 1, "link_type": "hospitality.link.federated_run_started_by_workflow", "role": "example" }'

RPC-shaped traversal. Pick the edge by (link_type, direction) or by role — the registry resolves a role name (e.g. managed_by, direct_reports) to the underlying link side. link_type wins when both are present.

One durable execution pinned to exactly one active definition version. definition_hash is copied at start so the run can prove the exact shape it executed even if the definition is later deprecated. target_refs_snapshot is a redacted convenience snapshot — graph traversal uses concrete workflow_run_targets_* links. The runner that advances steps is a separate proposal (§9.2).

Authorizations

Section titled “Authorizations”

Parameters

Section titled “Parameters”

Path Parameters

Section titled “Path Parameters”
id
required
string format: uuid

Object id (UUID v7, server-generated at create time).

Request Bodyrequired

Section titled “Request Bodyrequired”
Media typeapplication/json

Body for POST .../traverse. At least one of link_type or role MUST be supplied — the server returns 422 missing_traversal_target when both are absent. link_type wins when both are set.

object
as_of

RFC3339 temporal window: return neighbours whose edge was in effect at this instant ([effective_from, effective_to)) instead of now.

string format: date-time
branch

Traverse through an open branch’s overlay view instead of the canonical (main) plane. Does not compose with as_of (422).

string format: uuid
cursor
string
direction

Edge direction. Optional when the binding is asymmetric.

Allowed values: out in
limit
integer
>= 1 <= 500
link_type

API name of the link type to traverse. Narrowed to link types that bind the source. Wins over role.

Allowed values: hospitality.link.federated_run_started_by_workflow hospitality.link.participant_dispatch_for_workflow_run hospitality.link.workflow_run_for_definition hospitality.link.workflow_run_started_by_agent_installation hospitality.link.workflow_run_targets_charge hospitality.link.workflow_run_targets_folio hospitality.link.workflow_run_targets_fraud_risk_assessment hospitality.link.workflow_run_targets_membership hospitality.link.workflow_run_targets_message_triage hospitality.link.workflow_run_targets_payment hospitality.link.workflow_run_targets_person hospitality.link.workflow_run_targets_rate_recommendation hospitality.link.workflow_run_targets_reservation hospitality.link.workflow_run_targets_restriction_recommendation hospitality.link.workflow_run_targets_room hospitality.link.workflow_run_targets_service_recovery_event hospitality.link.workflow_run_targets_staff_member hospitality.link.workflow_step_run_for_workflow_run
role

Link-side role name (e.g. managed_by, direct_reports). Mutually substitutable with link_type — the registry resolves the role to its underlying link and direction.

string

Responses

Section titled “Responses”

200

Section titled “200”

Neighbours along the resolved link.

Media typeapplication/json
object
data
required
Array<object>
object
created_at
required
string format: date-time
id
required
string format: uuid
object_type
required
string
properties
required
object
scope
required
One of: discriminator: level
object
level
required
string
Allowed value: tenant
Allowed values: tenant
tenant_id
required
string format: uuid
updated_at
required
string format: date-time
version
required
integer
>= 1
direction
required
Allowed values: out in
has_more
required
boolean
link_type
required
string
next_cursor
string
Example
{
  "data": [
    {
      "scope": {
        "level": "tenant"
      }
    }
  ],
  "direction": "out"
}

404

Section titled “404”

No object with that id, or link type unknown.

422

Section titled “422”

Validation error — must supply link_type or role.