curl -s \
  "https://engine.example.com/v1/holders/alpha/attributes" \
  -H "Authorization: Bearer $TOKEN"

// A client from OpenAPI Generator: see Build a client.
import {
  Configuration,
  HoldersApi,
  ProblemFromJSON,
  ResponseError,
} from "./nodeasset-client";

const api = new HoldersApi(new Configuration({
  basePath: "https://engine.example.com",
  accessToken: process.env.TOKEN,
}));

try {
  const answer = await api.getHolderAttributes({ holderId: "alpha" });
  console.log(answer.value);
} catch (e) {
  if (!(e instanceof ResponseError)) throw e;
  // A refusal is a problem; its type ends in the slug.
  const problem = ProblemFromJSON(await e.response.json());
  const slug = problem.type.split(":").pop();
  console.error(e.response.status, slug, problem.detail);
}

# A client from OpenAPI Generator: see Build a client.
import os
import sys

import nodeasset_client

config = nodeasset_client.Configuration(
    host="https://engine.example.com",
    access_token=os.environ["TOKEN"],
)
with nodeasset_client.ApiClient(config) as client:
    api = nodeasset_client.HoldersApi(client)
    try:
        answer = api.get_holder_attributes(holder_id="alpha")
        print(answer.value)
    except nodeasset_client.ApiException as e:
        # A refusal is a problem; its type ends in the slug.
        problem = nodeasset_client.Problem.from_json(e.body)
        slug = problem.type.rsplit(":", 1)[-1]
        print(e.status, slug, problem.detail, file=sys.stderr)

// A client from OpenAPI Generator: see Build a client.
import nodeasset.client.ApiClient;
import nodeasset.client.ApiException;
import nodeasset.client.api.HoldersApi;
import nodeasset.client.model.Problem;

public class GetHolderAttributes {
  public static void main(String[] args) throws Exception {
    ApiClient client = new ApiClient();
    client.updateBaseUri("https://engine.example.com");
    client.setRequestInterceptor(builder ->
        builder.header("Authorization", "Bearer " + System.getenv("TOKEN")));
    HoldersApi api = new HoldersApi(client);

    try {
      var request = HoldersApi.APIGetHolderAttributesRequest.newBuilder()
          .holderId("alpha")
          .build();
      var answer = api.getHolderAttributes(request);
      System.out.println(answer.getValue());
    } catch (ApiException e) {
      // A refusal is a problem; its type ends in the slug.
      Problem problem = client.getObjectMapper()
          .readValue(e.getResponseBody(), Problem.class);
      String type = problem.getType();
      String slug = type.substring(type.lastIndexOf(':') + 1);
      System.err.println(e.getCode() + " " + slug + " " + problem.getDetail());
    }
  }
}

{
  "offset": 0,
  "ledgerTime": null,
  "now": "2026-10-03T13:26:06.148629453Z",
  "value": {
    "holderId": "alpha",
    "attributes": {
      "residency": {
        "value": "SG",
        "state": "verified",
        "expiresAt": "2027-10-01T00:00:00Z",
        "proofHash": "sha256:71bb0d85eaa3ef967532c1362a20fed032d5889aa1cdd659e18a61485aefde94",
        "evidence": "kyc/alpha/residency"
      },
      "investorType": {
        "value": "professional",
        "state": "verified",
        "expiresAt": null,
        "proofHash": "sha256:99104191dccbd729f5ee8dd91329ceb2be83da5eec4358e7e33c410e2882ad96",
        "evidence": "kyc/alpha/investor-type"
      },
      "accreditation": null
    },
    "kyc": null,
    "claims": [
      {
        "property": "residency",
        "value": "SG"
      },
      {
        "property": "residencyValidUntil",
        "value": "2027-10-01T00:00:00Z"
      },
      {
        "property": "investorType",
        "value": "professional"
      }
    ],
    "version": 2,
    "updatedAt": "2026-10-03T13:22:41.508812Z",
    "updatedBy": "operator-1",
    "operationId": "op-2b8e1c5d-4f3a-4d6e-9a7b-1c2d3e4f5a6b"
  }
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "detail": "<string>",
  "requestId": "<string>",
  "gate": "<string>",
  "check": "<string>",
  "recovery": "<string>",
  "retryAfter": 123,
  "retryable": true,
  "packageName": "<string>",
  "party": "<string>",
  "contractId": "<string>",
  "projectionOffset": 123,
  "ledgerEnd": 123,
  "code": 123,
  "reason": "<string>",
  "policyVersion": 123,
  "errors": [
    {
      "pointer": "<string>",
      "detail": "<string>"
    }
  ]
}