@hexmon_tech/engine-rebac

ReBAC adapter contract and in-memory adapter for direct tuple checks.

Install

pnpm add @hexmon_tech/engine-rebac

Minimal Usage

import { InMemoryRebacAdapter } from '@hexmon_tech/engine-rebac';

const adapter = new InMemoryRebacAdapter();
await adapter.writeTuples([
  {
    tenantId: 'tenant-a',
    object: { type: 'file', id: 'f1' },
    relation: 'viewer',
    subject: { type: 'user', id: 'u1' },
  },
]);

const result = await adapter.check({
  tenantId: 'tenant-a',
  object: { type: 'file', id: 'f1' },
  relation: 'viewer',
  subject: { type: 'user', id: 'u1' },
});

API Overview

• Types: RelationshipTuple, RebacCheckInput, RebacCheckResult
• Interface: RebacAdapter
• Adapter: InMemoryRebacAdapter

Compatibility

• Node >=18
• Direct tuple matching only (no graph traversal)

Verify

pnpm --filter @hexmon_tech/engine-rebac typecheck
pnpm --filter @hexmon_tech/engine-rebac test
pnpm --filter @hexmon_tech/engine-rebac build