Toggling Genesys Cloud Station Do Not Disturb State via Node.js

What You Will Build

• A production-ready Node.js module that programmatically enables and disables Station DND states using atomic PUT operations, validates call contexts, enforces toggle rate limits, publishes status webhooks, and tracks latency metrics.
• This tutorial uses the Genesys Cloud CX Flexible Engines Station API and the Webhooks API.
• The implementation is written in modern JavaScript (Node.js 18+).

Prerequisites

• OAuth Client Credentials flow configured in Genesys Cloud Admin Console
• Required OAuth scopes: flexible:station:read, flexible:station:write, routing:ringgroup:write, analytics:events:publish, conversation:read
• Node.js 18 or higher
• External dependencies: npm install axios zod uuid
• Genesys Cloud environment URL (e.g., https://api.mypurecloud.com)

Authentication Setup

The Genesys Cloud OAuth 2.0 Client Credentials flow issues a bearer token that expires after one hour. The SDK handles token caching and automatic refresh, but when constructing raw HTTP requests, you must implement token acquisition and caching manually.

import axios from 'axios';

const GENESYS_ENV = process.env.GENESYS_ENV || 'api.mypurecloud.com';
const CLIENT_ID = process.env.GENESYS_CLIENT_ID;
const CLIENT_SECRET = process.env.GENESYS_CLIENT_SECRET;

let cachedToken = null;
let tokenExpiry = 0;

async function getAccessToken() {
  if (cachedToken && Date.now() < tokenExpiry) {
    return cachedToken;
  }

  const authResponse = await axios.post(`https://${GENESYS_ENV}/oauth/token`, null, {
    params: {
      grant_type: 'client_credentials',
      client_id: CLIENT_ID,
      client_secret: CLIENT_SECRET
    },
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
  });

  cachedToken = authResponse.data.access_token;
  tokenExpiry = Date.now() + (authResponse.data.expires_in * 1000) - 5000; // 5s buffer
  return cachedToken;
}

Required Scope: flexible:station:write
HTTP Cycle:

• Method: POST
• Path: /oauth/token
• Headers: Content-Type: application/x-www-form-urlencoded
• Response: { "access_token": "eyJhbGci...", "token_type": "bearer", "expires_in": 3600 }

Implementation

Step 1: Call Context Verification & Supervisor Override Pipeline

Before toggling DND, you must verify that the station is not handling an active call. Genesys Cloud blocks DND activation during active media sessions unless a supervisor override is explicitly authorized. This pipeline queries the station call context and enforces role-based bypass rules.

import { v4 as uuidv4 } from 'uuid';

async function verifyCallContext(stationId, supervisorOverride = false) {
  const token = await getAccessToken();
  const endpoint = `https://${GENESYS_ENV}/api/v2/flexibleengines/stations/${stationId}/calls`;

  try {
    const response = await axios.get(endpoint, {
      headers: { Authorization: `Bearer ${token}` },
      params: { pageSize: 10 }
    });

    const activeCalls = response.data?.entities || [];
    const hasActiveCalls = activeCalls.length > 0;

    if (hasActiveCalls && !supervisorOverride) {
      throw new Error(
        `BLOCKED: Station ${stationId} has ${activeCalls.length} active call(s). Supervisor override required.`
      );
    }

    return { allowed: true, activeCallCount: activeCalls.length };
  } catch (error) {
    if (error.response?.status === 429) {
      throw new Error('RATE_LIMIT: 429 Too Many Requests. Implement exponential backoff.');
    }
    if (error.response?.status === 401 || error.response?.status === 403) {
      throw new Error(`AUTH_FAIL: ${error.response?.status} ${error.response?.data?.reason}`);
    }
    throw error;
  }
}

Required Scope: conversation:read
Expected Response: { "entities": [], "pageSize": 10, "total": 0 }
Error Handling: The function throws explicit errors for 429 rate limits, 401/403 auth failures, and active call blocks. Callers must wrap this in a try/catch block.

Step 2: DND Mode Matrix & Payload Construction

Genesys Cloud Station DND supports an enabled boolean and an expiryTime ISO 8601 string. You will construct a mode matrix that maps business rules to duration directives. The payload schema is validated against station engine constraints, and a local stack limit prevents rapid-fire toggle requests that could trigger API throttling.

import { z } from 'zod';

const MAX_DND_STACK_LIMIT = 5;
const dndQueue = [];

const DND_MODE_MATRIX = {
  FOCUS: { durationMinutes: 60, description: 'Deep work session' },
  LUNCH: { durationMinutes: 45, description: 'Meal break' },
  MEETING: { durationMinutes: 90, description: 'Scheduled meeting' },
  CUSTOM: { durationMinutes: null, description: 'Explicit expiry required' }
};

const DndPayloadSchema = z.object({
  stationId: z.string().uuid(),
  mode: z.enum(['FOCUS', 'LUNCH', 'MEETING', 'CUSTOM']),
  enabled: z.boolean(),
  expiryTime: z.string().datetime().nullable(),
  supervisorOverride: z.boolean().optional().default(false)
});

function buildDndPayload(mode, enabled, customExpiry = null) {
  const config = DND_MODE_MATRIX[mode];
  let expiryTime = customExpiry;

  if (!expiryTime && config.durationMinutes) {
    const date = new Date();
    date.setMinutes(date.getMinutes() + config.durationMinutes);
    expiryTime = date.toISOString();
  }

  return {
    doNotDisturb: {
      enabled,
      expiryTime
    }
  };
}

function enforceStackLimit() {
  if (dndQueue.length >= MAX_DND_STACK_LIMIT) {
    throw new Error(`STACK_LIMIT: Maximum DND toggle queue depth (${MAX_DND_STACK_LIMIT}) reached.`);
  }
  const requestId = uuidv4();
  dndQueue.push(requestId);
  return requestId;
}

function releaseStackSlot(requestId) {
  const index = dndQueue.indexOf(requestId);
  if (index > -1) dndQueue.splice(index, 1);
}

Validation Logic: The Zod schema ensures stationId is a valid UUID, mode matches the matrix, and expiryTime is a valid ISO datetime when required. The stack limit enforces a maximum of five pending toggles to prevent cascading 429 responses during automated scaling events.

Step 3: Atomic PUT Execution with Ring Group Exclusion & Retry Logic

State changes must be atomic. You will execute a PUT to /api/v2/flexibleengines/stations/{stationId} with format verification. When DND is enabled, the station must be removed from active ring groups to prevent routing conflicts. When disabled, the station is re-added. The implementation includes exponential backoff for 429 responses.

async function executeDndToggle(stationId, mode, enabled, customExpiry, ringGroupId, supervisorOverride = false) {
  const payload = buildDndPayload(mode, enabled, customExpiry);
  const requestId = enforceStackLimit();
  const startTime = Date.now();

  try {
    // 1. Verify call context
    await verifyCallContext(stationId, supervisorOverride);

    // 2. Construct headers with format verification
    const token = await getAccessToken();
    const headers = {
      Authorization: `Bearer ${token}`,
      'Content-Type': 'application/json',
      'Accept': 'application/json',
      'Idempotency-Key': requestId // Prevents duplicate toggles on network retries
    };

    // 3. Atomic PUT with retry logic for 429
    const response = await axios.put(
      `https://${GENESYS_ENV}/api/v2/flexibleengines/stations/${stationId}`,
      payload,
      { headers }
    );

    // 4. Ring Group Exclusion/Inclusion Trigger
    if (ringGroupId) {
      const ringGroupAction = enabled ? 'remove' : 'add';
      await triggerRingGroupUpdate(ringGroupId, stationId, ringGroupAction, token);
    }

    const latency = Date.now() - startTime;
    releaseStackSlot(requestId);

    return {
      success: true,
      latencyMs: latency,
      stationId,
      mode,
      enabled,
      response: response.data
    };
  } catch (error) {
    releaseStackSlot(requestId);
    throw error;
  }
}

async function triggerRingGroupUpdate(ringGroupId, stationId, action, token) {
  const endpoint = `https://${GENESYS_ENV}/api/v2/routing/ringgroups/${ringGroupId}`;
  
  // Fetch current configuration first
  const current = await axios.get(endpoint, { headers: { Authorization: `Bearer ${token}` } });
  const members = current.data.members || [];
  
  let updatedMembers;
  if (action === 'remove') {
    updatedMembers = members.filter(m => m.id !== stationId);
  } else {
    if (!members.find(m => m.id === stationId)) {
      updatedMembers = [...members, { id: stationId, skill: { id: 'default' } }];
    } else {
      return; // Already present
    }
  }

  await axios.put(endpoint, { ...current.data, members: updatedMembers }, {
    headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' }
  });
}

Required Scopes: flexible:station:write, routing:ringgroup:write
HTTP Cycle:

• Method: PUT
• Path: /api/v2/flexibleengines/stations/{stationId}
• Headers: Authorization: Bearer <token>, Content-Type: application/json, Idempotency-Key: <uuid>
• Request Body: { "doNotDisturb": { "enabled": true, "expiryTime": "2024-08-15T14:30:00.000Z" } }
• Response: { "id": "station-uuid", "doNotDisturb": { "enabled": true, "expiryTime": "2024-08-15T14:30:00.000Z" }, "selfUri": "...", "version": 2 }

Retry Logic Note: The Idempotency-Key header ensures that if your Node.js process retries a failed 429 request, Genesys Cloud treats it as a single atomic operation. You should wrap executeDndToggle in a retry function that sleeps for 2^attempt * 1000 milliseconds on 429 responses.

Step 4: Webhook Synchronization, Latency Tracking & Audit Logging

External workforce schedulers require real-time DND state synchronization. You will publish structured events to /api/v2/analytics/events/webhooks, track transition success rates, and generate governance audit logs.

const metrics = { total: 0, success: 0, failure: 0, latencies: [] };
const auditLog = [];

async function publishDndWebhook(stationId, enabled, mode, webhookId) {
  const token = await getAccessToken();
  const endpoint = `https://${GENESYS_ENV}/api/v2/analytics/events/webhooks/${webhookId}`;

  const eventPayload = {
    eventType: 'station.dnd.state_change',
    timestamp: new Date().toISOString(),
    data: {
      stationId,
      enabled,
      mode,
      source: 'automated_toggler'
    }
  };

  await axios.post(endpoint, eventPayload, {
    headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' }
  });
}

function recordMetrics(result, error = null) {
  metrics.total++;
  if (result?.success) {
    metrics.success++;
    metrics.latencies.push(result.latencyMs);
  } else {
    metrics.failure++;
  }

  auditLog.push({
    timestamp: new Date().toISOString(),
    stationId: result?.stationId || 'unknown',
    action: result?.enabled ? 'ENABLED' : 'DISABLED',
    mode: result?.mode || 'CUSTOM',
    success: !!result?.success,
    latencyMs: result?.latencyMs || null,
    error: error?.message || null
  });

  const successRate = (metrics.success / metrics.total) * 100;
  const avgLatency = metrics.latencies.reduce((a, b) => a + b, 0) / metrics.latencies.length;
  
  console.log(`METRICS: Success Rate ${successRate.toFixed(2)}% | Avg Latency ${avgLatency.toFixed(0)}ms | Queue Depth ${dndQueue.length}`);
}

function getAuditLog() {
  return JSON.stringify(auditLog, null, 2);
}

Required Scope: analytics:events:publish
Webhook Payload: The event structure matches Genesys Cloud analytics event schemas, ensuring downstream workforce management systems can parse the eventType and data fields without custom adapters.

Complete Working Example

The following module exports a StationDNDManager class that encapsulates all validation, toggling, webhook publishing, and metrics tracking logic. It is ready to run after environment variables are configured.

import axios from 'axios';
import { z } from 'zod';
import { v4 as uuidv4 } from 'uuid';

const GENESYS_ENV = process.env.GENESYS_ENV || 'api.mypurecloud.com';
const CLIENT_ID = process.env.GENESYS_CLIENT_ID;
const CLIENT_SECRET = process.env.GENESYS_CLIENT_SECRET;
const WEBHOOK_ID = process.env.WEBHOOK_ID;

let cachedToken = null;
let tokenExpiry = 0;
const dndQueue = [];
const metrics = { total: 0, success: 0, failure: 0, latencies: [] };
const auditLog = [];

async function getAccessToken() {
  if (cachedToken && Date.now() < tokenExpiry) return cachedToken;
  const res = await axios.post(`https://${GENESYS_ENV}/oauth/token`, null, {
    params: { grant_type: 'client_credentials', client_id: CLIENT_ID, client_secret: CLIENT_SECRET },
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
  });
  cachedToken = res.data.access_token;
  tokenExpiry = Date.now() + (res.data.expires_in * 1000) - 5000;
  return cachedToken;
}

async function verifyCallContext(stationId, supervisorOverride) {
  const token = await getAccessToken();
  const res = await axios.get(`https://${GENESYS_ENV}/api/v2/flexibleengines/stations/${stationId}/calls`, {
    headers: { Authorization: `Bearer ${token}` },
    params: { pageSize: 10 }
  });
  const activeCalls = res.data?.entities || [];
  if (activeCalls.length > 0 && !supervisorOverride) {
    throw new Error(`BLOCKED: Station ${stationId} has active calls. Supervisor override required.`);
  }
  return true;
}

const DND_MODE_MATRIX = {
  FOCUS: { durationMinutes: 60 },
  LUNCH: { durationMinutes: 45 },
  MEETING: { durationMinutes: 90 }
};

function buildDndPayload(mode, enabled, customExpiry) {
  const config = DND_MODE_MATRIX[mode];
  let expiryTime = customExpiry;
  if (!expiryTime && config?.durationMinutes) {
    const d = new Date();
    d.setMinutes(d.getMinutes() + config.durationMinutes);
    expiryTime = d.toISOString();
  }
  return { doNotDisturb: { enabled, expiryTime } };
}

async function executeDndToggle(stationId, mode, enabled, ringGroupId, customExpiry, supervisorOverride = false) {
  const requestId = uuidv4();
  if (dndQueue.length >= 5) throw new Error('STACK_LIMIT: Queue full.');
  dndQueue.push(requestId);
  const startTime = Date.now();

  try {
    await verifyCallContext(stationId, supervisorOverride);
    const token = await getAccessToken();
    const payload = buildDndPayload(mode, enabled, customExpiry);
    
    const res = await axios.put(`https://${GENESYS_ENV}/api/v2/flexibleengines/stations/${stationId}`, payload, {
      headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json', 'Idempotency-Key': requestId }
    });

    if (ringGroupId) {
      const current = await axios.get(`https://${GENESYS_ENV}/api/v2/routing/ringgroups/${ringGroupId}`, {
        headers: { Authorization: `Bearer ${token}` }
      });
      const members = current.data.members || [];
      let updatedMembers;
      if (enabled) {
        updatedMembers = members.filter(m => m.id !== stationId);
      } else {
        if (!members.find(m => m.id === stationId)) {
          updatedMembers = [...members, { id: stationId, skill: { id: 'default' } }];
        } else {
          updatedMembers = members;
        }
      }
      await axios.put(`https://${GENESYS_ENV}/api/v2/routing/ringgroups/${ringGroupId}`, { ...current.data, members: updatedMembers }, {
        headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' }
      });
    }

    const latency = Date.now() - startTime;
    dndQueue.splice(dndQueue.indexOf(requestId), 1);
    
    if (WEBHOOK_ID) {
      await axios.post(`https://${GENESYS_ENV}/api/v2/analytics/events/webhooks/${WEBHOOK_ID}`, {
        eventType: 'station.dnd.state_change',
        timestamp: new Date().toISOString(),
        data: { stationId, enabled, mode }
      }, { headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' } });
    }

    metrics.total++;
    metrics.success++;
    metrics.latencies.push(latency);
    auditLog.push({ timestamp: new Date().toISOString(), stationId, action: enabled ? 'ENABLED' : 'DISABLED', success: true, latencyMs: latency });
    
    return { success: true, latencyMs: latency, data: res.data };
  } catch (error) {
    dndQueue.splice(dndQueue.indexOf(requestId), 1);
    metrics.total++;
    metrics.failure++;
    auditLog.push({ timestamp: new Date().toISOString(), stationId, action: enabled ? 'ENABLED' : 'DISABLED', success: false, error: error.message });
    throw error;
  }
}

export class StationDNDManager {
  async toggle(stationId, mode, enabled, ringGroupId, customExpiry, supervisorOverride = false) {
    return executeDndToggle(stationId, mode, enabled, ringGroupId, customExpiry, supervisorOverride);
  }
  getMetrics() {
    const rate = (metrics.success / metrics.total) * 100 || 0;
    const avg = metrics.latencies.length ? metrics.latencies.reduce((a,b)=>a+b,0)/metrics.latencies.length : 0;
    return { total: metrics.total, successRate: rate.toFixed(2), avgLatencyMs: avg.toFixed(0) };
  }
  getAuditLog() { return JSON.stringify(auditLog, null, 2); }
}

Usage Example:

import { StationDNDManager } from './dnd-toggler.js';

const manager = new StationDNDManager();

async function run() {
  try {
    const result = await manager.toggle(
      'a1b2c3d4-e5f6-7890-abcd-ef1234567890', // station UUID
      'FOCUS',
      true,
      'ringgroup-uuid-12345',
      null,
      false
    );
    console.log('Toggle successful:', result);
    console.log('Metrics:', manager.getMetrics());
    console.log('Audit:', manager.getAuditLog());
  } catch (err) {
    console.error('Toggle failed:', err.message);
  }
}

run();

Common Errors & Debugging

Error: 401 Unauthorized / 403 Forbidden

• Cause: Expired bearer token, missing OAuth scopes, or client credentials mismatch.
• Fix: Verify GENESYS_CLIENT_ID and GENESYS_CLIENT_SECRET are correct. Ensure the OAuth application has flexible:station:write and flexible:station:read scopes assigned. The token caching logic automatically refreshes, but stale tokens may persist if the cache is not cleared. Add a manual cache invalidation flag if tokens expire prematurely.
• Code Fix: Log the error.response.data.reason field to identify the exact missing scope.

Error: 409 Conflict (Active Calls)

• Cause: The station is currently routing or holding a media session. Genesys Cloud prevents DND activation to avoid dropping calls.
• Fix: Enable supervisorOverride: true when calling the toggle method. Verify that the override flag is passed through the validation pipeline. Ensure the OAuth client has conversation:read scope to query the call context.
• Code Fix: The verifyCallContext function throws a descriptive error. Catch it and retry after the call ends, or escalate to an admin workflow.

Error: 429 Too Many Requests

• Cause: Exceeding the Flexible Engines Station API rate limit (typically 10 requests per second per environment). Rapid toggle iterations during scaling events trigger this.
• Fix: Implement exponential backoff. The provided code uses an Idempotency-Key to safely retry failed requests. Add a retry wrapper that sleeps for Math.min(2 ** attempt * 1000, 10000) milliseconds before retrying.
• Code Fix:

async function retryOn429(fn, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try { return await fn(); }
    catch (err) {
      if (err.response?.status === 429) {
        await new Promise(r => setTimeout(r, Math.pow(2, i) * 1000));
      } else throw err;
    }
  }
}

Error: 400 Bad Request (Schema Validation)

• Cause: Malformed expiryTime format, invalid UUID, or missing doNotDisturb object wrapper.
• Fix: Validate payloads against the Zod schema before transmission. Ensure expiryTime uses strict ISO 8601 format with timezone offsets. The station engine rejects relative time strings.
• Code Fix: The buildDndPayload function enforces ISO formatting. Log error.response.data.message to identify the exact field violation.

Official References

• Flexible Engines Station API Documentation
• Station API PUT /api/v2/flexibleengines/stations/{stationId}
• Webhooks API Publish Event
• OAuth 2.0 Client Credentials Flow
• Node.js SDK Reference