curl -s -X POST \
  "https://engine.example.com/v1/approvals/holder.close-377aef663240721210eb6b60:reject" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "reason": "gamma still holds FUND; close after its redemption settles"
  }'

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

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

try {
  const answer = await api.rejectAction({
    actionKey: "holder.close-377aef663240721210eb6b60",
    rejectApprovalBody: RejectApprovalBodyFromJSON({
      reason: "gamma still holds FUND; close after its redemption settles",
    }),
  });
  console.log(answer);
} 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.ApprovalsAndOperationsApi(client)
    try:
        answer = api.reject_action(
            action_key="holder.close-377aef663240721210eb6b60",
            reject_approval_body=nodeasset_client.RejectApprovalBody.model_validate({
                "reason": "gamma still holds FUND; close after its redemption settles",
            }),
        )
        print(answer)
    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.ApprovalsAndOperationsApi;
import nodeasset.client.model.Problem;
import nodeasset.client.model.RejectApprovalBody;

public class RejectAction {
  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")));
    ApprovalsAndOperationsApi api = new ApprovalsAndOperationsApi(client);

    try {
      var request = ApprovalsAndOperationsApi.APIRejectActionRequest.newBuilder()
          .actionKey("holder.close-377aef663240721210eb6b60")
          .rejectApprovalBody(client.getObjectMapper().readValue("""
              {
                "reason": "gamma still holds FUND; close after its redemption settles"
              }
              """, RejectApprovalBody.class))
          .build();
      var answer = api.rejectAction(request);
      System.out.println(answer);
    } 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());
    }
  }
}

{
  "actionKey": "holder.close-377aef663240721210eb6b60",
  "kind": "holder.close",
  "resource": {
    "kind": "holder",
    "id": "gamma",
    "href": "/v1/holders/gamma"
  },
  "maker": "operator-1",
  "makerName": "Olive Park",
  "makerEmail": "olive.park@venue.example",
  "makerRole": "operator",
  "madeAt": "2026-10-03T13:25:51.024726Z",
  "state": "rejected",
  "checker": "approver-1",
  "checkerName": "Ann Kim",
  "checkerEmail": "ann.kim@venue.example",
  "checkedAt": "2026-10-03T13:25:51.030616228Z",
  "operationId": null,
  "reason": "gamma still holds FUND; close after its redemption settles",
  "method": "POST",
  "path": "/v1/holders/gamma:close",
  "body": {
    "holderId": "gamma"
  },
  "required": 1,
  "signedBy": [],
  "signers": []
}

{
  "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>"
    }
  ]
}