Thing .relate
POST /{namespace}/things/{thing}/relate
Relate links two Things by a Relationship their Nouns declare, readable from both ends at once.
- Noun
- Thing
- Mode
do- Event
Thing.related
Inputs
| Input | Type | Required | Description |
|---|---|---|---|
thing | Thing | required | The source Thing. |
predicate | string | required | The Relationship as read from the source, such as places. |
to | Thing | required | The target Thing. |
Outputs
| Output | Type | Required | Description |
|---|---|---|---|
relationship | Relationship | required | The Relationship, with its provenance. |
thing | Thing | required | The Thing the Relationship starts from. |
Effects
- Emits
Thing.related. - Performed by the Data Engineer.
- Two-way: it runs at once, in the
try,sendanddomodes. - Refuses a predicate that neither Noun declares.
- On a to-one Relationship, replaces the old target; the old link stays in history.
Refuses when
| Check | Error | Fix | Then call |
|---|---|---|---|
| The key is valid, but its scopes do not allow this operation. | forbidden | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | Thing.relate |
| A predicate that neither Noun declares | refused | Clear what the check names, then call it again. | Thing.relate |
When it waits
| Gate | Default |
|---|---|
| Decision class | Low: two-way, nothing at stake |
| Delay window | None: it runs once review passes. |
| Limit | The call Limit of the Permission it runs under. |
| Over the Limit | It waits pending for an Approval from the Founder. Approved, it runs; refused, it ends refused with limit-exceeded; unanswered by its deadline, it ends canceled. |