How to List All OAuth Clients and Audit Scope Assignments Programmatically

How-To-Articles
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How to List All OAuth Clients and Audit Scope Assignments Programmatically

What You Will Build

  • A script that retrieves every OAuth client registered in a Genesys Cloud organization.
  • A parser that extracts and validates the specific OAuth scopes assigned to each client.
  • A Python implementation using the official Genesys Cloud SDK v2.

Prerequisites

  • OAuth Client Type: Service Account with admin:oauth_client:read scope.
  • SDK Version: genesys-cloud (Python SDK) version 2.0.0 or higher.
  • Language/Runtime: Python 3.8+.
  • External Dependencies:
    • genesys-cloud (Install via pip install genesys-cloud)
    • python-dotenv (Optional, for secure credential management via pip install python-dotenv)

Authentication Setup

Genesys Cloud uses OAuth 2.0 for all API access. For administrative tasks like listing OAuth clients, you must use a Service Account. This account requires the admin:oauth_client:read scope to view client details.

The following code demonstrates how to configure the SDK client using environment variables for security. This pattern avoids hardcoding credentials in source code.

import os
from dotenv import load_dotenv
from purecloud_platform_client_v2 import PlatformClient

# Load environment variables from .env file
load_dotenv()

# Initialize the Platform Client
platform_client = PlatformClient()

# Configure authentication using Service Account credentials
# These must be set in your environment or .env file
client_id = os.getenv("GENESYS_CLOUD_CLIENT_ID")
client_secret = os.getenv("GENESYS_CLOUD_CLIENT_SECRET")
api_host = os.getenv("GENESYS_CLOUD_API_HOST", "api.mypurecloud.com")

if not client_id or not client_secret:
    raise ValueError("GENESYS_CLOUD_CLIENT_ID and GENESYS_CLOUD_CLIENT_SECRET must be set.")

# Set the authentication configuration
platform_client.set_authentication(
    client_id=client_id,
    client_secret=client_secret,
    api_host=api_host
)

# Verify the client is configured correctly
try:
    # Attempt a simple call to verify authentication
    user_api = platform_client.UsersApi()
    me = user_api.get_users_me()
    print(f"Authenticated as: {me.name} ({me.email})")
except Exception as e:
    print(f"Authentication failed: {e}")
    raise

Implementation

Step 1: Initialize the OAuth API Client

The Genesys Cloud SDK provides a dedicated OauthApi class for managing OAuth resources. You must instantiate this client from the PlatformClient object configured in the previous step.

from purecloud_platform_client_v2 import PlatformClient, OauthApi

def get_oauth_api_client(platform_client: PlatformClient) -> OauthApi:
    """
    Initializes and returns the OauthApi client.
    """
    return platform_client.OauthApi()

Step 2: Retrieve All OAuth Clients with Pagination

The get_oauth_clients endpoint returns a paginated list of OAuth clients. The response includes a next_page token if more results exist. You must handle pagination to ensure you retrieve every client in the organization, regardless of the total count.

from purecloud_platform_client_v2 import OauthApi, ApiException
from typing import List

def fetch_all_oauth_clients(oauth_api: OauthApi) -> List[dict]:
    """
    Fetches all OAuth clients using pagination.
    
    Args:
        oauth_api: The initialized OauthApi client.
        
    Returns:
        A list of dictionaries representing each OAuth client.
    """
    all_clients = []
    page_token = None
    
    print("Starting OAuth client retrieval...")
    
    while True:
        try:
            # Fetch the next page of clients
            response = oauth_api.get_oauth_clients(
                page_size=20,  # Max page size is typically 20 for this endpoint
                page_token=page_token
            )
            
            # Append the entities from the current page
            if response.entities:
                all_clients.extend(response.entities)
                print(f"Retrieved {len(response.entities)} clients. Total so far: {len(all_clients)}")
            
            # Check if there is a next page
            if response.next_page:
                page_token = response.next_page
            else:
                # No more pages, break the loop
                break
                
        except ApiException as e:
            print(f"API Exception when fetching OAuth clients: {e.status_code} - {e.reason}")
            raise
        except Exception as e:
            print(f"Unexpected error: {e}")
            raise
            
    print(f"Finished retrieval. Total clients found: {len(all_clients)}")
    return all_clients

Step 3: Parse and Validate Scope Assignments

Each OAuth client object contains a scopes field, which is a list of strings representing the permissions granted to that client. You must parse this list to audit specific scopes. This step filters clients based on a target scope (e.g., admin:oauth_client:write) to identify potential security risks.

from typing import List, Dict, Set

def audit_scopes(clients: List[dict], target_scope: str = "admin:oauth_client:write") -> List[Dict[str, any]]:
    """
    Audits OAuth clients for a specific scope.
    
    Args:
        clients: List of OAuth client dictionaries.
        target_scope: The scope to check for.
        
    Returns:
        A list of clients that have the target scope assigned.
    """
    flagged_clients = []
    
    for client in clients:
        # Ensure the client has a scopes attribute
        if not hasattr(client, 'scopes') or client.scopes is None:
            continue
            
        # Check if the target scope is in the client's scopes
        if target_scope in client.scopes:
            flagged_clients.append({
                "id": client.id,
                "name": client.name,
                "type": client.type,
                "scopes": client.scopes,
                "created_by_id": client.created_by_id,
                "created_date": str(client.created_date) if client.created_date else None
            })
            
    return flagged_clients

Complete Working Example

The following script combines all steps into a single, runnable module. It authenticates, retrieves all OAuth clients, audits them for a specific dangerous scope, and prints the results.

import os
import sys
from dotenv import load_dotenv
from purecloud_platform_client_v2 import PlatformClient, OauthApi, ApiException
from typing import List, Dict

def load_credentials():
    """Loads credentials from environment variables."""
    load_dotenv()
    client_id = os.getenv("GENESYS_CLOUD_CLIENT_ID")
    client_secret = os.getenv("GENESYS_CLOUD_CLIENT_SECRET")
    api_host = os.getenv("GENESYS_CLOUD_API_HOST", "api.mypurecloud.com")
    
    if not client_id or not client_secret:
        raise ValueError("GENESYS_CLOUD_CLIENT_ID and GENESYS_CLOUD_CLIENT_SECRET must be set.")
        
    return client_id, client_secret, api_host

def setup_platform_client(client_id, client_secret, api_host):
    """Initializes and configures the PlatformClient."""
    platform_client = PlatformClient()
    platform_client.set_authentication(
        client_id=client_id,
        client_secret=client_secret,
        api_host=api_host
    )
    return platform_client

def get_oauth_clients(platform_client: PlatformClient) -> List[dict]:
    """Fetches all OAuth clients with pagination."""
    oauth_api = platform_client.OauthApi()
    all_clients = []
    page_token = None
    
    while True:
        try:
            response = oauth_api.get_oauth_clients(page_size=20, page_token=page_token)
            if response.entities:
                all_clients.extend(response.entities)
            if not response.next_page:
                break
            page_token = response.next_page
        except ApiException as e:
            print(f"Error fetching clients: {e.status_code} - {e.reason}")
            raise
    return all_clients

def audit_clients(clients: List[dict], target_scope: str) -> List[Dict[str, any]]:
    """Identifies clients with the target scope."""
    flagged = []
    for client in clients:
        if hasattr(client, 'scopes') and client.scopes and target_scope in client.scopes:
            flagged.append({
                "id": client.id,
                "name": client.name,
                "type": client.type,
                "scopes": client.scopes
            })
    return flagged

def main():
    try:
        # 1. Load Credentials
        client_id, client_secret, api_host = load_credentials()
        
        # 2. Setup Client
        platform_client = setup_platform_client(client_id, client_secret, api_host)
        
        # 3. Fetch Clients
        print("Fetching all OAuth clients...")
        clients = get_oauth_clients(platform_client)
        print(f"Total clients found: {len(clients)}")
        
        # 4. Audit Scopes
        target_scope = "admin:oauth_client:write"
        print(f"Auditing for scope: {target_scope}")
        flagged_clients = audit_clients(clients, target_scope)
        
        # 5. Output Results
        if flagged_clients:
            print(f"\nWARNING: Found {len(flagged_clients)} client(s) with {target_scope}:\n")
            for client in flagged_clients:
                print(f"- ID: {client['id']}")
                print(f"  Name: {client['name']}")
                print(f"  Type: {client['type']}")
                print(f"  Scopes: {', '.join(client['scopes'])}")
                print("-" * 40)
        else:
            print(f"\nNo clients found with scope: {target_scope}")
            
    except Exception as e:
        print(f"Fatal error: {e}")
        sys.exit(1)

if __name__ == "__main__":
    main()

Common Errors & Debugging

Error: 403 Forbidden - Scope Not Granted

What causes it: The Service Account used for authentication does not have the admin:oauth_client:read scope.

How to fix it:

  1. Log in to the Genesys Cloud Admin portal.
  2. Navigate to Security > OAuth clients.
  3. Select the Service Account used in the script.
  4. Click Edit.
  5. In the Scopes section, search for and add admin:oauth_client:read.
  6. Save the changes.
  7. Regenerate the OAuth token if it was cached.

Code showing the fix:
Ensure your .env file references the correct GENESYS_CLOUD_CLIENT_ID for the updated Service Account.

# .env
GENESYS_CLOUD_CLIENT_ID=your_updated_service_account_id
GENESYS_CLOUD_CLIENT_SECRET=your_secret

Error: 401 Unauthorized - Invalid Token

What causes it: The client ID or secret is incorrect, or the token has expired and the SDK failed to refresh it.

How to fix it:

  1. Verify the GENESYS_CLOUD_CLIENT_ID and GENESYS_CLOUD_CLIENT_SECRET in your environment variables.
  2. Ensure the Service Account is not disabled in the Admin portal.
  3. Check the API host. If you are in a specific region (e.g., EU), use api.eu.mypurecloud.com.

Code showing the fix:
Add explicit error handling for 401 responses.

try:
    response = oauth_api.get_oauth_clients(page_size=20)
except ApiException as e:
    if e.status_code == 401:
        print("Authentication failed. Check Client ID, Secret, and Host.")
        sys.exit(1)
    else:
        raise

Error: 429 Too Many Requests

What causes it: You are hitting the rate limit for the OAuth API. This is rare for listing clients but can occur if you run the script in a tight loop.

How to fix it: Implement exponential backoff.

Code showing the fix:

import time

def fetch_with_retry(oauth_api, max_retries=3):
    for attempt in range(max_retries):
        try:
            return oauth_api.get_oauth_clients(page_size=20)
        except ApiException as e:
            if e.status_code == 429:
                wait_time = 2 ** attempt
                print(f"Rate limited. Waiting {wait_time} seconds...")
                time.sleep(wait_time)
            else:
                raise
    raise Exception("Max retries exceeded for 429 error")

Official References