Pagination and Scope Retrieval for OAuth Clients via Genesys Cloud API

NICE CXone API & Integrations
1

Why does this setting require manual intervention when I need to audit scope assignments across 50+ OAuth clients in my n8n automation pipeline?

I am building a self-hosted n8n workflow to programmatically validate OAuth client configurations against a compliance matrix. The goal is to list all OAuth clients in our organization and check their specific scope assignments. I am using the GET /api/v2/oauth/clients endpoint to retrieve the list of clients.

Here is the relevant HTTP node configuration in my n8n workflow:

Method: GET
Endpoint: /api/v2/oauth/clients
Headers: 
 Authorization: Bearer {{ $json.accessToken }}
 X-Genesys-Application-Id: my-automation-app

The initial request returns a 200 OK status with the first page of results. The response body looks like this:

{
 "page": 1,
 "pageSize": 25,
 "total": 120,
 "entities": [
 {
 "id": "abc-123",
 "name": "Legacy Reporting App",
 "description": "Used for dashboard reporting",
 "redirectUri": "https://example.com/callback",
 "clientSecret": "***"
 }
 ]
}

The problem is that the entities array does not include the scope or permissions details. I assumed these would be included, but they are missing. I have tried appending ?fields=scope to the query string, but the API still returns the same structure without the scope data.

I need to determine which clients have the admin:oauth:client scope versus analytics:reports:read. Without this data in the list endpoint, I would need to make a separate GET /api/v2/oauth/clients/{clientId} call for each of the 120 clients. This approach seems inefficient and risks hitting rate limits.

Is there a query parameter I am missing to include scopes in the list response? Or is there a bulk endpoint for retrieving scope assignments? I want to avoid a loop with 120 individual API calls in my n8n workflow. Any guidance on the correct API pattern for this audit task would be appreciated. I am working within the America/Sao_Paulo timezone and have verified my OAuth token has the admin:oauth:client scope.

2

Ah, this is a recognized issue… Pagination handles the volume, but you must explicitly request scope details since they are not in the base list. Use this filter to get the exact assignments per client.

{
 "page_size": 50,
 "page_number": 1,
 "expand": ["scope"]
}
3

The problem here is the expand parameter is not supported on the /api/v2/oauth/clients endpoint. You must iterate through the returned client IDs and call GET /api/v2/oauth/clients/{clientId} individually to retrieve the scopes. My Python loop handles this pagination and subsequent detail fetches efficiently without manual intervention.

  • OAuth client detail endpoint
  • Python SDK pagination
  • Scope validation logic
4

Have you tried implementing a batched async fetch pattern to avoid rate limiting when iterating client IDs? The suggestion above regarding individual GET /api/v2/oauth/clients/{clientId} calls is technically accurate since expand is indeed unsupported on the list endpoint. However, hitting the API sequentially for 50+ clients will cause significant latency and likely trigger throttling headers.

In my Electron main process, I handle similar bulk retrieval by chunking the requests.

  • Fetch the initial list of client IDs via GET /api/v2/oauth/clients.
  • Slice the ID array into chunks of 10 to respect rate limits.
  • Use Promise.all with platformClient.OauthApi.getOauthClient(clientId) for each chunk.
  • Aggregate the responses and map the scopes array to your compliance matrix.

This approach ensures you retrieve the nested scope definitions without blocking the event loop. Check the x-ratelimit-remaining header in your response metadata to adjust your chunk size dynamically.

5

The best way to fix this is…

  1. Stop trying to use expand on the list endpoint. It returns a 400 Bad Request because the schema doesn’t support it.
  2. Iterate the GET /api/v2/oauth/clients response.
  3. Fetch details via GET /api/v2/oauth/clients/{{clientId}} for each item.

I run this exact pattern in my Newman collections to audit 50+ clients. The list endpoint gives you the IDs; the detail endpoint gives you the scopes. Don’t fight the API contract.

# List clients
GET /api/v2/oauth/clients?page_size=25&page_number=1

# Fetch scopes for specific client
GET /api/v2/oauth/clients/{{clientId}}
# Requires: oauth:client:read

If you hit rate limits, add a 100ms delay between requests in your pre-request script. I use pm.execution.setNextRequestDelay(100) in my Postman flow to stay under the 100 req/min burst limit. It’s not elegant, but it works without manual intervention.