example.js

import { v1 } from "@authzed/authzed-node";
// set up it on localhost like this:
// const client = v1.NewClient('mytokenhere', 'localhost:50051', 1);
const client = v1.NewClient("mytokenhere");

const writeRequest = v1.WriteSchemaRequest.create({
  schema: `definition test/user {}

  definition test/document {
    relation viewer: test/user
    permission view = viewer
  }
  `,
});

// Write a schema.
await new Promise((resolve, reject) => {
  client.writeSchema(writeRequest, (err, response) => {
    if (err) reject(err);
    resolve(response);
  });
});

// Write a relationship.
const writeRelationshipRequest = v1.WriteRelationshipsRequest.create({
  updates: [
    v1.RelationshipUpdate.create({
      relationship: v1.Relationship.create({
        resource: v1.ObjectReference.create({
          objectType: "test/document",
          objectId: "somedocument",
        }),
        relation: "viewer",
        subject: v1.SubjectReference.create({
          object: v1.ObjectReference.create({
            objectType: "test/user",
            objectId: "fred",
          }),
        }),
      }),
      operation: v1.RelationshipUpdate_Operation.CREATE,
    }),
  ],
});

await new Promise((resolve, reject) => {
  client.writeRelationships(writeRelationshipRequest, (err, response) => {
    if (err) reject(err);
    resolve(response);
  });
});

// Check a permission.
const checkPermissionRequest = v1.CheckPermissionRequest.create({
  resource: v1.ObjectReference.create({
    objectType: "test/document",
    objectId: "somedocument",
  }),
  permission: "view",
  subject: v1.SubjectReference.create({
    object: v1.ObjectReference.create({
      objectType: "test/user",
      objectId: "fred",
    }),
  }),
  consistency: v1.Consistency.create({
    requirement: {
      oneofKind: "fullyConsistent",
      fullyConsistent: true,
    },
  }),
});

const checkResult = await new Promise((resolve, reject) => {
  client.checkPermission(checkPermissionRequest, (err, response) => {
    if (err) reject(err);
    resolve(response);
  });
});

console.log(
  checkResult.permissionship ===
    v1.CheckPermissionResponse_Permissionship.HAS_PERMISSION,
);