Configuring Genesys Cloud Routing Working Hours via REST API with TypeScript

What You Will Build

• A TypeScript module that constructs, validates, and persists Genesys Cloud schedule objects with timezone directives, overlap checks, and optimistic locking.
• This implementation uses the Genesys Cloud Platform API v2 /api/v2/schedulegroups/schedules endpoint for atomic schedule updates.
• The code runs in Node.js 18+ using native fetch, strict TypeScript typing, and structured logging for audit compliance.

Prerequisites

• OAuth 2.0 confidential client credentials registered in Genesys Cloud
• Required scopes: schedule:read, schedule:write, webhook:write
• Node.js 18.0 or higher (native fetch support)
• TypeScript 5.0+ with strict: true enabled
• No external runtime dependencies required. The tutorial uses only standard library modules and native fetch.

Authentication Setup

Genesys Cloud uses OAuth 2.0 client credentials flow for server-to-server API access. You must cache the access token and handle expiration before issuing schedule operations.

import { Buffer } from 'node:buffer';

interface TokenResponse {
  access_token: string;
  expires_in: number;
  token_type: string;
  scope: string;
}

let cachedToken: string | null = null;
let tokenExpiry: number = 0;

export async function getAccessToken(clientId: string, clientSecret: string): Promise<string> {
  const now = Date.now();
  if (cachedToken && now < tokenExpiry - 60000) {
    return cachedToken;
  }

  const authHeader = `Basic ${Buffer.from(`${clientId}:${clientSecret}`).toString('base64')}`;
  const body = new URLSearchParams({ grant_type: 'client_credentials' });

  const response = await fetch('https://api.mypurecloud.com/oauth/token', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded',
      Authorization: authHeader
    },
    body
  });

  if (!response.ok) {
    const errorText = await response.text();
    throw new Error(`OAuth token request failed with status ${response.status}: ${errorText}`);
  }

  const data: TokenResponse = await response.json();
  cachedToken = data.access_token;
  tokenExpiry = now + (data.expires_in * 1000);
  return cachedToken;
}

The token response returns a JWT valid for 3600 seconds. The caching logic subtracts 60 seconds to prevent edge-case expiration during long-running validation pipelines.

Implementation

Step 1: Schedule Retrieval and ETag Extraction

Genesys Cloud enforces optimistic locking on schedule resources. You must fetch the current schedule to obtain the ETag header value. Subsequent PUT requests must include the If-Match header with this value. The API returns 412 Precondition Failed if the resource was modified by another process.

interface ScheduleResource {
  id: string;
  scheduleGroupId: string;
  name: string;
  description: string | null;
  timezoneId: string;
  scheduleEntries: Array<{
    daysOfWeek: string[];
    startTime: string;
    endTime: string;
  }>;
  holidays: string[];
}

async function fetchScheduleWithETag(
  token: string,
  scheduleGroupId: string,
  scheduleId: string
): Promise<{ schedule: ScheduleResource; etag: string }> {
  const url = `https://api.mypurecloud.com/api/v2/schedulegroups/${scheduleGroupId}/schedules/${scheduleId}`;
  
  const response = await fetch(url, {
    method: 'GET',
    headers: {
      Authorization: `Bearer ${token}`,
      Accept: 'application/json'
    }
  });

  if (response.status === 404) {
    throw new Error(`Schedule ${scheduleId} not found in group ${scheduleGroupId}`);
  }
  if (!response.ok) {
    throw new Error(`Schedule retrieval failed with status ${response.status}`);
  }

  const etag = response.headers.get('ETag') || '';
  const schedule: ScheduleResource = await response.json();
  return { schedule, etag };
}

HTTP Response Cycle Example

GET /api/v2/schedulegroups/a1b2c3d4/schedules/e5f6g7h8 HTTP/1.1
Authorization: Bearer eyJhbGciOiJSUzI1NiIs...
Accept: application/json

HTTP/1.1 200 OK
ETag: "abc123def456"
Content-Type: application/json

{
  "id": "e5f6g7h8",
  "scheduleGroupId": "a1b2c3d4",
  "name": "Support Team Hours",
  "timezoneId": "America/New_York",
  "scheduleEntries": [
    { "daysOfWeek": ["monday", "tuesday", "wednesday", "thursday", "friday"], "startTime": "08:00:00.000", "endTime": "18:00:00.000" }
  ],
  "holidays": []
}

Step 2: Payload Construction and Overlap Validation

You must validate the schedule payload before submission. The validation pipeline checks for timezone conformity, detects overlapping time slots on the same day, and verifies holiday ID references. This prevents routing conflicts and agent capacity drops.

const VALID_DAYS = ['sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'];

function validateSchedulePayload(payload: ScheduleResource): void {
  if (!payload.timezoneId) {
    throw new Error('timezoneId is required for accurate routing windows');
  }

  const entries = payload.scheduleEntries || [];
  if (entries.length === 0) {
    throw new Error('scheduleEntries must contain at least one entry');
  }

  for (const entry of entries) {
    for (const day of entry.daysOfWeek) {
      if (!VALID_DAYS.includes(day)) {
        throw new Error(`Invalid day of week: ${day}`);
      }
    }

    const start = new Date(`1970-01-01T${entry.startTime}`);
    const end = new Date(`1970-01-01T${entry.endTime}`);
    if (start >= end) {
      throw new Error(`startTime must be earlier than endTime for entry: ${JSON.stringify(entry)}`);
    }
  }

  // Overlap detection per day
  const dayEntries = new Map<string, typeof entries>();
  for (const entry of entries) {
    for (const day of entry.daysOfWeek) {
      if (!dayEntries.has(day)) dayEntries.set(day, []);
      dayEntries.get(day)!.push(entry);
    }
  }

  for (const [day, dayList] of dayEntries.entries()) {
    if (dayList.length < 2) continue;
    for (let i = 0; i < dayList.length; i++) {
      for (let j = i + 1; j < dayList.length; j++) {
        const a = dayList[i];
        const b = dayList[j];
        const aStart = new Date(`1970-01-01T${a.startTime}`);
        const aEnd = new Date(`1970-01-01T${a.endTime}`);
        const bStart = new Date(`1970-01-01T${b.startTime}`);
        const bEnd = new Date(`1970-01-01T${b.endTime}`);

        if (aStart < bEnd && bStart < aEnd) {
          throw new Error(`Time overlap detected on ${day} between entries: ${JSON.stringify(a)} and ${JSON.stringify(b)}`);
        }
      }
    }
  }
}

Step 3: Atomic PUT with Optimistic Locking and Holiday Integration

The persistence layer issues an atomic PUT request. You must include the If-Match header with the previously extracted ETag. The payload integrates holiday rule IDs to automatically exclude scheduled availability during recognized holidays. The request includes exponential backoff retry logic for 429 Too Many Requests responses.

interface RetryConfig {
  maxRetries: number;
  baseDelayMs: number;
}

const DEFAULT_RETRY: RetryConfig = { maxRetries: 3, baseDelayMs: 1000 };

async function fetchWithRetry(url: string, options: RequestInit, retryConfig: RetryConfig = DEFAULT_RETRY): Promise<Response> {
  let attempt = 0;
  while (true) {
    const response = await fetch(url, options);
    
    if (response.status === 429) {
      const retryAfter = response.headers.get('Retry-After');
      const delay = retryAfter ? parseInt(retryAfter, 10) * 1000 : retryConfig.baseDelayMs * Math.pow(2, attempt);
      if (attempt >= retryConfig.maxRetries) {
        throw new Error(`Exhausted ${retryConfig.maxRetries} retries due to 429 rate limiting`);
      }
      await new Promise(resolve => setTimeout(resolve, delay));
      attempt++;
      continue;
    }

    if (response.status === 412) {
      throw new Error('Optimistic lock failure: schedule was modified by another process since last fetch');
    }

    return response;
  }
}

async function persistSchedule(
  token: string,
  scheduleGroupId: string,
  scheduleId: string,
  etag: string,
  payload: ScheduleResource
): Promise<ScheduleResource> {
  const url = `https://api.mypurecloud.com/api/v2/schedulegroups/${scheduleGroupId}/schedules/${scheduleId}`;
  
  const response = await fetchWithRetry(url, {
    method: 'PUT',
    headers: {
      Authorization: `Bearer ${token}`,
      'Content-Type': 'application/json',
      'If-Match': etag,
      Accept: 'application/json'
    },
    body: JSON.stringify(payload)
  });

  if (!response.ok) {
    const errorBody = await response.text();
    throw new Error(`Schedule update failed with status ${response.status}: ${errorBody}`);
  }

  return response.json();
}

Required OAuth Scope: schedule:write

Step 4: Capacity Impact Analysis and Webhook Synchronization

Before committing, you should run a capacity impact analysis to verify that the new schedule does not drop available routing hours below a configured threshold during peak periods. You will also register a webhook to synchronize schedule change events with external calendar systems.

interface CapacityMetrics {
  totalWeeklyHours: number;
  peakDayHours: number;
  validationSuccessRate: number;
  configLatencyMs: number;
}

function calculateCapacityImpact(entries: ScheduleResource['scheduleEntries']): CapacityMetrics {
  let totalHours = 0;
  let peakHours = 0;

  for (const entry of entries) {
    const start = new Date(`1970-01-01T${entry.startTime}`);
    const end = new Date(`1970-01-01T${entry.endTime}`);
    const diffHours = (end.getTime() - start.getTime()) / (1000 * 60 * 60);
    
    for (const _ of entry.daysOfWeek) {
      totalHours += diffHours;
    }
    if (diffHours > peakHours) peakHours = diffHours;
  }

  return {
    totalWeeklyHours: totalHours,
    peakDayHours: peakHours,
    validationSuccessRate: 1.0,
    configLatencyMs: 0
  };
}

async function registerScheduleWebhook(token: string, webhookUrl: string): Promise<void> {
  const webhookPayload = {
    name: 'External Calendar Sync',
    uri: webhookUrl,
    events: ['schedule:updated'],
    enabled: true,
    httpMethod: 'POST',
    contentType: 'application/json',
    authentication: {
      scheme: 'Basic',
      username: 'webhook_user',
      password: 'webhook_secret'
    }
  };

  const response = await fetch('https://api.mypurecloud.com/api/v2/webhooks', {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${token}`,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify(webhookPayload)
  });

  if (!response.ok) {
    const err = await response.text();
    throw new Error(`Webhook registration failed: ${response.status} ${err}`);
  }
}

Required OAuth Scope: webhook:write

The capacity analysis pipeline calculates total weekly routing hours and identifies the peak day duration. You can integrate this with Genesys Cloud analytics endpoints like /api/v2/analytics/conversations/details/query to compare theoretical availability against actual inbound volume. The webhook registration ensures external calendar systems receive schedule:updated payloads immediately after the atomic PUT succeeds.

Complete Working Example

The following module combines authentication, validation, persistence, capacity analysis, and audit logging into a single executable TypeScript file. Replace the placeholder credentials and identifiers before execution.

import { Buffer } from 'node:buffer';
import fs from 'node:fs';
import path from 'node:path';

// --- Interfaces ---
interface ScheduleResource {
  id: string;
  scheduleGroupId: string;
  name: string;
  description: string | null;
  timezoneId: string;
  scheduleEntries: Array<{
    daysOfWeek: string[];
    startTime: string;
    endTime: string;
  }>;
  holidays: string[];
}

interface AuditLogEntry {
  timestamp: string;
  action: string;
  scheduleId: string;
  status: 'success' | 'failure';
  latencyMs: number;
  details: string;
}

// --- Constants ---
const VALID_DAYS = ['sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'];
const AUDIT_LOG_PATH = path.join(process.cwd(), 'schedule_audit.log');
let cachedToken: string | null = null;
let tokenExpiry: number = 0;

// --- Authentication ---
async function getAccessToken(clientId: string, clientSecret: string): Promise<string> {
  const now = Date.now();
  if (cachedToken && now < tokenExpiry - 60000) return cachedToken;

  const authHeader = `Basic ${Buffer.from(`${clientId}:${clientSecret}`).toString('base64')}`;
  const body = new URLSearchParams({ grant_type: 'client_credentials' });

  const response = await fetch('https://api.mypurecloud.com/oauth/token', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded', Authorization: authHeader },
    body
  });

  if (!response.ok) throw new Error(`Auth failed: ${response.status}`);
  const data = await response.json();
  cachedToken = data.access_token;
  tokenExpiry = now + (data.expires_in * 1000);
  return cachedToken;
}

// --- Validation ---
function validateSchedulePayload(payload: ScheduleResource): void {
  if (!payload.timezoneId) throw new Error('timezoneId is required');
  if (!payload.scheduleEntries?.length) throw new Error('scheduleEntries must contain at least one entry');

  for (const entry of payload.scheduleEntries) {
    for (const day of entry.daysOfWeek) {
      if (!VALID_DAYS.includes(day)) throw new Error(`Invalid day: ${day}`);
    }
    const start = new Date(`1970-01-01T${entry.startTime}`);
    const end = new Date(`1970-01-01T${entry.endTime}`);
    if (start >= end) throw new Error(`startTime must precede endTime`);
  }

  const dayMap = new Map<string, typeof payload.scheduleEntries>();
  for (const entry of payload.scheduleEntries) {
    for (const day of entry.daysOfWeek) {
      if (!dayMap.has(day)) dayMap.set(day, []);
      dayMap.get(day)!.push(entry);
    }
  }

  for (const [, entries] of dayMap.entries()) {
    if (entries.length < 2) continue;
    for (let i = 0; i < entries.length; i++) {
      for (let j = i + 1; j < entries.length; j++) {
        const a = entries[i], b = entries[j];
        const aS = new Date(`1970-01-01T${a.startTime}`), aE = new Date(`1970-01-01T${a.endTime}`);
        const bS = new Date(`1970-01-01T${b.startTime}`), bE = new Date(`1970-01-01T${b.endTime}`);
        if (aS < bE && bS < aE) throw new Error(`Overlap detected on same day`);
      }
    }
  }
}

// --- Retry & Persistence ---
async function fetchWithRetry(url: string, opts: RequestInit): Promise<Response> {
  let attempt = 0;
  while (true) {
    const res = await fetch(url, opts);
    if (res.status === 429) {
      const retryAfter = res.headers.get('Retry-After');
      const delay = retryAfter ? parseInt(retryAfter, 10) * 1000 : 1000 * Math.pow(2, attempt);
      if (attempt >= 3) throw new Error('Rate limit exhausted');
      await new Promise(r => setTimeout(r, delay));
      attempt++;
      continue;
    }
    if (res.status === 412) throw new Error('Optimistic lock conflict');
    return res;
  }
}

async function persistSchedule(token: string, groupId: string, id: string, etag: string, payload: ScheduleResource): Promise<ScheduleResource> {
  const url = `https://api.mypurecloud.com/api/v2/schedulegroups/${groupId}/schedules/${id}`;
  const res = await fetchWithRetry(url, {
    method: 'PUT',
    headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json', 'If-Match': etag },
    body: JSON.stringify(payload)
  });
  if (!res.ok) throw new Error(`PUT failed: ${res.status}`);
  return res.json();
}

// --- Audit & Metrics ---
function writeAuditLog(entry: AuditLogEntry): void {
  const line = JSON.stringify(entry) + '\n';
  fs.appendFileSync(AUDIT_LOG_PATH, line);
}

// --- Main Configurator ---
async function configureSchedule(
  clientId: string,
  clientSecret: string,
  scheduleGroupId: string,
  scheduleId: string,
  newEntries: ScheduleResource['scheduleEntries'],
  holidayIds: string[],
  timezoneId: string,
  webhookUrl: string
): Promise<void> {
  const startTime = Date.now();
  const token = await getAccessToken(clientId, clientSecret);

  // 1. Fetch current & ETag
  const getUrl = `https://api.mypurecloud.com/api/v2/schedulegroups/${scheduleGroupId}/schedules/${scheduleId}`;
  const getRes = await fetch(getUrl, { headers: { Authorization: `Bearer ${token}`, Accept: 'application/json' } });
  if (!getRes.ok) throw new Error(`Fetch failed: ${getRes.status}`);
  const etag = getRes.headers.get('ETag') || '';
  const current: ScheduleResource = await getRes.json();

  // 2. Construct & Validate
  const payload: ScheduleResource = {
    ...current,
    timezoneId,
    scheduleEntries: newEntries,
    holidays: holidayIds
  };

  validateSchedulePayload(payload);

  // 3. Capacity Analysis
  let totalHours = 0;
  for (const e of newEntries) {
    const s = new Date(`1970-01-01T${e.startTime}`);
    const en = new Date(`1970-01-01T${e.endTime}`);
    totalHours += ((en.getTime() - s.getTime()) / 3600000) * e.daysOfWeek.length;
  }
  console.log(`Capacity Impact: ${totalHours.toFixed(2)} weekly routing hours`);

  // 4. Persist
  const updated = await persistSchedule(token, scheduleGroupId, scheduleId, etag, payload);
  const latency = Date.now() - startTime;

  // 5. Webhook Sync
  await fetch('https://api.mypurecloud.com/api/v2/webhooks', {
    method: 'POST',
    headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' },
    body: JSON.stringify({
      name: 'Schedule Sync',
      uri: webhookUrl,
      events: ['schedule:updated'],
      enabled: true,
      httpMethod: 'POST',
      contentType: 'application/json'
    })
  });

  // 6. Audit Log
  writeAuditLog({
    timestamp: new Date().toISOString(),
    action: 'SCHEDULE_UPDATE',
    scheduleId,
    status: 'success',
    latencyMs: latency,
    details: `ETag: ${etag}, Hours: ${totalHours.toFixed(2)}`
  });

  console.log(`Schedule ${scheduleId} updated successfully in ${latency}ms`);
}

// Execution guard
if (import.meta.url === `file://${process.argv[1]}`) {
  configureSchedule(
    'YOUR_CLIENT_ID',
    'YOUR_CLIENT_SECRET',
    'YOUR_SCHEDULE_GROUP_ID',
    'YOUR_SCHEDULE_ID',
    [
      { daysOfWeek: ['monday', 'tuesday', 'wednesday', 'thursday', 'friday'], startTime: '09:00:00.000', endTime: '17:00:00.000' },
      { daysOfWeek: ['saturday'], startTime: '10:00:00.000', endTime: '14:00:00.000' }
    ],
    ['holiday-id-1', 'holiday-id-2'],
    'America/Chicago',
    'https://your-external-calendar.com/api/sync'
  ).catch(err => {
    console.error('Configuration failed:', err.message);
    process.exit(1);
  });
}

Common Errors & Debugging

Error: 412 Precondition Failed

• Cause: The If-Match header value does not match the current server-side ETag. Another process or admin modified the schedule between your GET and PUT calls.
• Fix: Implement a retry loop that re-fetches the schedule, merges your changes into the fresh payload, and re-submits with the new ETag. The provided fetchWithRetry function throws explicitly on 412 to force application-level resolution.

Error: 429 Too Many Requests

• Cause: Genesys Cloud enforces rate limits per tenant and per endpoint. Schedule configuration pipelines often trigger cascading limits when processing multiple groups.
• Fix: The retry wrapper reads the Retry-After header if present. If absent, it applies exponential backoff. Always monitor the X-RateLimit-Remaining header in responses to adjust request pacing.

Error: 400 Bad Request - Overlap or Invalid Timezone

• Cause: The payload contains overlapping scheduleEntries for the same day, or the timezoneId is not a valid IANA identifier.
• Fix: The validateSchedulePayload function catches overlaps and invalid days. Ensure timezoneId matches IANA format (e.g., Europe/London). Do not use abbreviations like EST or CST.

Error: 403 Forbidden

• Cause: The OAuth token lacks the schedule:write or webhook:write scope, or the client ID is not authorized for the target schedule group.
• Fix: Verify the token payload contains the required scopes. Assign the client credentials to a user with Routing Administrator or Schedule Manager permissions in the Genesys Cloud admin console.

Official References

• Schedule API Documentation
• ScheduleGroup API Documentation
• Webhook API Documentation
• OAuth 2.0 Client Credentials Flow
• Rate Limiting Guidelines