OriginChainDB
Database endpoints

Count triangles

Enumerates every triangle in a graph schema's self-relation.

GET /v1/tenants/{tenant}/graph/{schema}/triangles

Find connected sets of three recordsThe result lists node keys rather than full records.
  1. Choose a self-relationSelect the graph's schema and relation.
  2. Find three-node cyclesEnumerate triangles in those links.
  3. Read each tripleUse the three keys to inspect its records.

Before you start

Use your database bearer token.

Connection setup

Register the schema and relation, then add their rows. The examples use demo.people, its bidirectional follows relation, and linked rows u1, u2 and u3.

Path parameters

FieldTypeRequired
tenantstringRequired
schemastringRequired

Query parameters

FieldTypeRequired
relstringRequired

Headers

FieldTypeRequiredDescription
x-oc-db-userstringOptionalActing database user (role, grant and row-policy checks). Send with x-oc-db-key.
x-oc-db-keystringOptionalAPI key of the x-oc-db-user user.

Read the result

Each result names the three node keys of a triangle. The response describes connections in the selected self-relation, not the nodes' complete records.

Response statuses

HTTP status reference
StatusWhat to do
200OK
400Correct the request before retrying.
401Check the credential and Authorization header.
402Check feature access or available credits.
403Check tenant access, roles and permissions.
404Check the resource ID and API route.
408Reduce query work or adjust the timeout.
413Split or reduce the request body.
429Honor Retry-After when present; back off.
499The client cancelled the request.
500Check the outcome before retrying a write.
503Honor Retry-After when present; check write outcomes.
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