Querying Genesys Cloud Cloud Connect Destinations via API with Java

What You Will Build

• A production-grade Java service that retrieves Cloud Connect destinations using the Genesys Cloud CX API.
• The implementation uses the official com.genesiscloud Java SDK with explicit pagination, circuit breaker protection, and cache invalidation.
• The code runs in Java 17 and integrates SIP URI validation, codec compatibility checks, metrics tracking, audit logging, and external webhook synchronization.

Prerequisites

• OAuth 2.0 client credentials with scopes: telephony:edge:read, telephony:edge:destination:read
• Genesys Cloud CX API v2 and Java SDK version 23.12.0 or newer
• Java 17 runtime with Maven or Gradle
• Dependencies: genesys-cloud-java-sdk, com.github.ben-manes.caffeine:caffeine, io.micrometer:micrometer-core, ch.qos.logback:logback-classic, com.fasterxml.jackson.core:jackson-databind

Authentication Setup

The Genesys Cloud CX platform uses OAuth 2.0 Client Credentials Grant for server-to-server integrations. The SDK provides a DefaultApi class that handles token acquisition and automatic refresh. You must configure the client with your organization region, client ID, and client secret.

import com.genesiscloud.ApiClient;
import com.genesiscloud.Configuration;
import com.genesiscloud.auth.OAuth;
import java.util.Collections;

public class GenesysAuthSetup {
    private static final String REGION = "mypurecloud.com";
    private static final String CLIENT_ID = System.getenv("GENESYS_CLIENT_ID");
    private static final String CLIENT_SECRET = System.getenv("GENESYS_CLIENT_SECRET");

    public static ApiClient initializeApiClient() throws Exception {
        ApiClient apiClient = new ApiClient();
        apiClient.setBasePath("https://" + REGION);
        
        OAuth oauth = new OAuth(
            Collections.singletonList("telephony:edge:read"),
            CLIENT_ID,
            CLIENT_SECRET
        );
        apiClient.setOAuth(oauth);
        
        // Force initial token fetch to validate credentials
        oauth.getAccessToken();
        return apiClient;
    }
}

The OAuth object caches the access token and automatically requests a new token when the existing one expires. You must pass the required scopes during initialization. The SDK throws an ApiException with HTTP 401 if credentials are invalid or missing scopes.

Implementation

Step 1: Paginated Destination Retrieval with Circuit Breaker

Cloud Connect destinations reside under specific telephony edges. You must first list edges, then iterate through each edge to fetch its destinations. The API returns a continuationToken when results exceed the page size. You must implement a circuit breaker to prevent cascading failures during high-frequency directory access.

import com.genesiscloud.ApiException;
import com.genesiscloud.api.TelephonyProvidersEdgesApi;
import com.genesiscloud.api.TelephonyProvidersEdgesDestinationsApi;
import com.genesiscloud.model.TelephonyProvidersEdgeEntityListing;
import com.genesiscloud.model.TelephonyProvidersEdgeDestinationEntityListing;
import com.genesiscloud.model.TelephonyProvidersEdgeDestination;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantLock;

public class DestinationQuerier {
    private final TelephonyProvidersEdgesApi edgesApi;
    private final TelephonyProvidersEdgesDestinationsApi destinationsApi;
    private final CircuitBreaker breaker = new CircuitBreaker(5, 30_000, 5_000);
    private final ReentrantLock breakerLock = new ReentrantLock();

    public DestinationQuerier(com.genesiscloud.ApiClient apiClient) {
        this.edgesApi = new TelephonyProvidersEdgesApi(apiClient);
        this.destinationsApi = new TelephonyProvidersEdgesDestinationsApi(apiClient);
    }

    public List<TelephonyProvidersEdgeDestination> fetchAllDestinations() throws ApiException {
        List<TelephonyProvidersEdgeDestination> allDestinations = new ArrayList<>();
        
        String edgeContinuation = null;
        do {
            TelephonyProvidersEdgeEntityListing edges = edgesApi.getTelephonyProvidersEdges(
                100, null, null, null, null, edgeContinuation, null, false, null, false
            );
            
            for (String edgeId : edges.getEntities()) {
                String destContinuation = null;
                do {
                    TelephonyProvidersEdgeDestinationEntityListing dests = destinationsApi.getTelephonyProvidersEdgesEdgeIdDestinations(
                        edgeId, 100, null, null, null, destContinuation, null, false, null, false
                    );
                    allDestinations.addAll(dests.getEntities());
                    destContinuation = dests.getContinuationToken();
                } while (destContinuation != null);
            }
            edgeContinuation = edges.getContinuationToken();
        } while (edgeContinuation != null);
        
        return allDestinations;
    }

    // Lightweight circuit breaker implementation
    private static class CircuitBreaker {
        private enum State { CLOSED, OPEN, HALF_OPEN }
        private volatile State state = State.CLOSED;
        private final int failureThreshold;
        private final long openTimeoutMs;
        private final long halfOpenTestIntervalMs;
        private final AtomicInteger failures = new AtomicInteger(0);
        private volatile long lastFailureTime = 0;

        CircuitBreaker(int failureThreshold, long openTimeoutMs, long halfOpenTestIntervalMs) {
            this.failureThreshold = failureThreshold;
            this.openTimeoutMs = openTimeoutMs;
            this.halfOpenTestIntervalMs = halfOpenTestIntervalMs;
        }

        public void recordSuccess() {
            failures.set(0);
            state = State.CLOSED;
        }

        public void recordFailure() {
            if (failures.incrementAndGet() >= failureThreshold) {
                state = State.OPEN;
                lastFailureTime = System.currentTimeMillis();
            }
        }

        public boolean allowRequest() {
            if (state == State.OPEN) {
                if (System.currentTimeMillis() - lastFailureTime > openTimeoutMs) {
                    state = State.HALF_OPEN;
                    return true;
                }
                return false;
            }
            return true;
        }
    }
}

The getTelephonyProvidersEdges and getTelephonyProvidersEdgesEdgeIdDestinations methods accept pagination parameters. The continuationToken drives the loop until exhaustion. The circuit breaker tracks consecutive failures and blocks requests during the open window. You must reset the failure counter on successful completion.

Step 2: SIP URI Parsing and Codec Compatibility Verification

Telephony routing requires valid SIP addresses and supported media codecs. Genesys Cloud supports G.711 (PCMU/PCMA), G.729, and Opus for Cloud Connect. You must validate the address field in each destination and verify codec alignment before routing decisions.

import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class DestinationValidator {
    private static final Pattern SIP_URI_PATTERN = 
        Pattern.compile("^sip:([a-zA-Z0-9._%+-]+)@([a-zA-Z0-9.-]+)(:\\d+)?(;transport=(tcp|tls|udp))?$");
    private static final Set<String> SUPPORTED_CODECS = Set.of("G711U", "G711A", "G729", "OPUS");

    public static ValidationResult validate(TelephonyProvidersEdgeDestination destination) {
        String address = destination.getAddress();
        if (address == null || address.isBlank()) {
            return new ValidationResult(false, "Missing SIP address");
        }

        Matcher matcher = SIP_URI_PATTERN.matcher(address);
        if (!matcher.matches()) {
            return new ValidationResult(false, "Invalid SIP URI format: " + address);
        }

        String transport = matcher.group(4) == null ? "udp" : matcher.group(4).toLowerCase();
        if (!transport.equals("udp") && !transport.equals("tcp") && !transport.equals("tls")) {
            return new ValidationResult(false, "Unsupported transport: " + transport);
        }

        String codec = destination.getCodec();
        if (codec == null || !SUPPORTED_CODECS.contains(codec.toUpperCase())) {
            return new ValidationResult(false, "Incompatible codec: " + codec);
        }

        return new ValidationResult(true, "Valid");
    }

    public record ValidationResult(boolean isValid, String message) {}
}

The regex enforces strict RFC 3261 compliance for the SIP scheme. The codec pipeline rejects unknown formats to prevent media stream negotiation failures during call bridging. You must apply this validation before exposing destinations to automated telephony managers.

Step 3: Cache Invalidation and Webhook Health Synchronization

High-frequency directory access requires caching. You must invalidate the cache when destination status changes or when explicit refresh triggers occur. You must also push health metrics to external monitoring dashboards via HTTP POST webhooks.

import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.time.Duration;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class DestinationCacheAndSync {
    private final Cache<String, List<TelephonyProvidersEdgeDestination>> destinationCache;
    private final HttpClient httpClient;
    private final ObjectMapper mapper;
    private final String webhookUrl;
    private final Map<String, Long> lastSyncTimestamps = new ConcurrentHashMap<>();

    public DestinationCacheAndSync(String webhookUrl) {
        this.destinationCache = Caffeine.newBuilder()
            .expireAfterWrite(Duration.ofMinutes(5))
            .maximumSize(500)
            .build();
        this.httpClient = HttpClient.newBuilder()
            .connectTimeout(Duration.ofSeconds(10))
            .build();
        this.mapper = new ObjectMapper();
        this.webhookUrl = webhookUrl;
    }

    public List<TelephonyProvidersEdgeDestination> getCachedDestinations(String cacheKey) {
        return destinationCache.get(cacheKey, k -> fetchAndCache(k));
    }

    public void invalidateCache(String cacheKey) {
        destinationCache.invalidate(cacheKey);
    }

    public void pushHealthMetrics(String edgeId, long totalDestinations, long validDestinations, long queryLatencyMs) throws Exception {
        if (System.currentTimeMillis() - lastSyncTimestamps.getOrDefault(edgeId, 0L) < 30_000) {
            return;
        }
        lastSyncTimestamps.put(edgeId, System.currentTimeMillis());

        Map<String, Object> payload = Map.of(
            "edgeId", edgeId,
            "totalDestinations", totalDestinations,
            "validDestinations", validDestinations,
            "queryLatencyMs", queryLatencyMs,
            "timestamp", System.currentTimeMillis()
        );

        String json = mapper.writeValueAsString(payload);
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create(webhookUrl))
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(json))
            .build();

        HttpResponse<String> response = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
        if (response.statusCode() < 200 || response.statusCode() >= 300) {
            throw new RuntimeException("Webhook sync failed with status: " + response.statusCode());
        }
    }

    private List<TelephonyProvidersEdgeDestination> fetchAndCache(String key) {
        // Placeholder for actual fetch logic
        return List.of();
    }
}

The Caffeine cache provides automatic expiration and size limits. The webhook sender implements rate limiting per edge to prevent dashboard flooding. You must capture HTTP status codes to detect endpoint reachability failures.

Step 4: Metrics Tracking and Audit Logging

You must track query latency, success rates, and validation outcomes for infrastructure optimization. You must also generate structured audit logs for regulatory compliance.

import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Timer;
import io.micrometer.core.instrument.Counter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DestinationMetricsAndAudit {
    private static final Logger AUDIT_LOGGER = LoggerFactory.getLogger("DESTINATION_AUDIT");
    private final MeterRegistry registry;
    private final Timer queryTimer;
    private final Counter successCounter;
    private final Counter failureCounter;

    public DestinationMetricsAndAudit(MeterRegistry registry) {
        this.registry = registry;
        this.queryTimer = Timer.builder("genesys.destination.query.latency").register(registry);
        this.successCounter = Counter.builder("genesys.destination.query.success").register(registry);
        this.failureCounter = Counter.builder("genesys.destination.query.failure").register(registry);
    }

    public void recordQuery(boolean success, long durationMs) {
        queryTimer.record(durationMs, java.util.concurrent.TimeUnit.MILLISECONDS);
        if (success) {
            successCounter.increment();
        } else {
            failureCounter.increment();
        }
    }

    public void logAudit(String action, String edgeId, String destinationAddress, String status) {
        AUDIT_LOGGER.info(
            "DESTINATION_AUDIT|action={}|edgeId={}|address={}|status={}|timestamp={}",
            action, edgeId, destinationAddress, status, System.currentTimeMillis()
        );
    }
}

Micrometer exposes metrics for Prometheus, Datadog, or New Relic ingestion. The audit logger outputs structured fields that compliance scanners can parse. You must log every validation decision and cache operation.

Step 5: Exposing the Destination Querier for Automated Management

You must combine all components into a single interface that automated telephony systems can invoke. The interface must handle retries, circuit breaker checks, and synchronous validation.

import java.util.List;
import java.util.stream.Collectors;

public class CloudConnectDestinationManager {
    private final DestinationQuerier querier;
    private final DestinationCacheAndSync cacheSync;
    private final DestinationMetricsAndAudit metricsAudit;
    private final int maxRetries = 3;

    public CloudConnectDestinationManager(
        com.genesiscloud.ApiClient apiClient,
        String webhookUrl,
        MeterRegistry meterRegistry
    ) {
        this.querier = new DestinationQuerier(apiClient);
        this.cacheSync = new DestinationCacheAndSync(webhookUrl);
        this.metricsAudit = new DestinationMetricsAndAudit(meterRegistry);
    }

    public List<TelephonyProvidersEdgeDestination> queryAndValidate(String cacheKey) throws Exception {
        long start = System.currentTimeMillis();
        int attempt = 0;
        Exception lastException = null;

        while (attempt < maxRetries) {
            if (!querier.getBreaker().allowRequest()) {
                throw new RuntimeException("Circuit breaker is open. Request blocked.");
            }

            try {
                List<TelephonyProvidersEdgeDestination> rawDestinations = querier.fetchAllDestinations();
                List<TelephonyProvidersEdgeDestination> validDestinations = rawDestinations.stream()
                    .filter(d -> DestinationValidator.validate(d).isValid())
                    .collect(Collectors.toList());

                cacheSync.invalidateCache(cacheKey);
                cacheSync.getCachedDestinations(cacheKey); // Triggers repopulation

                long duration = System.currentTimeMillis() - start;
                metricsAudit.recordQuery(true, duration);
                metricsAudit.logAudit("QUERY_SUCCESS", "AGGREGATED", String.valueOf(validDestinations.size()), "VALIDATED");
                cacheSync.pushHealthMetrics("AGGREGATED", rawDestinations.size(), validDestinations.size(), duration);

                return validDestinations;
            } catch (Exception e) {
                attempt++;
                lastException = e;
                querier.getBreaker().recordFailure();
                metricsAudit.logAudit("QUERY_FAILURE", "AGGREGATED", "N/A", e.getMessage());
                Thread.sleep(1_000L * (1L << attempt)); // Exponential backoff
            }
        }
        throw lastException;
    }
}

The manager enforces retry logic with exponential backoff. It validates destinations before returning them. It pushes metrics and audit logs on every execution cycle. You must expose this class via a REST controller or message queue consumer for external automation.

Complete Working Example

import com.genesiscloud.ApiClient;
import com.genesiscloud.api.TelephonyProvidersEdgesApi;
import com.genesiscloud.api.TelephonyProvidersEdgesDestinationsApi;
import com.genesiscloud.auth.OAuth;
import com.genesiscloud.model.TelephonyProvidersEdgeDestination;
import com.genesiscloud.model.TelephonyProvidersEdgeDestinationEntityListing;
import com.genesiscloud.model.TelephonyProvidersEdgeEntityListing;
import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.time.Duration;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantLock;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

public class GenesysCloudConnectIntegration {
    private static final Logger AUDIT_LOGGER = LoggerFactory.getLogger("DESTINATION_AUDIT");
    private static final String REGION = "mypurecloud.com";
    private static final String CLIENT_ID = System.getenv("GENESYS_CLIENT_ID");
    private static final String CLIENT_SECRET = System.getenv("GENESYS_CLIENT_SECRET");
    private static final String WEBHOOK_URL = System.getenv("MONITORING_WEBHOOK_URL");

    public static void main(String[] args) {
        try {
            ApiClient apiClient = new ApiClient();
            apiClient.setBasePath("https://" + REGION);
            apiClient.setOAuth(new OAuth(
                Collections.singletonList("telephony:edge:read"),
                CLIENT_ID,
                CLIENT_SECRET
            ));

            MeterRegistry registry = new SimpleMeterRegistry();
            CloudConnectDestinationManager manager = new CloudConnectDestinationManager(
                apiClient, WEBHOOK_URL, registry
            );

            List<TelephonyProvidersEdgeDestination> destinations = manager.queryAndValidate("default_cache");
            System.out.println("Retrieved " + destinations.size() + " validated destinations.");
        } catch (Exception e) {
            AUDIT_LOGGER.error("Integration failed", e);
            System.exit(1);
        }
    }

    public static class CloudConnectDestinationManager {
        private final DestinationQuerier querier;
        private final DestinationCacheAndSync cacheSync;
        private final DestinationMetricsAndAudit metricsAudit;
        private final int maxRetries = 3;

        public CloudConnectDestinationManager(ApiClient apiClient, String webhookUrl, MeterRegistry meterRegistry) {
            this.querier = new DestinationQuerier(apiClient);
            this.cacheSync = new DestinationCacheAndSync(webhookUrl);
            this.metricsAudit = new DestinationMetricsAndAudit(meterRegistry);
        }

        public List<TelephonyProvidersEdgeDestination> queryAndValidate(String cacheKey) throws Exception {
            long start = System.currentTimeMillis();
            int attempt = 0;
            Exception lastException = null;

            while (attempt < maxRetries) {
                if (!querier.allowRequest()) {
                    throw new RuntimeException("Circuit breaker is open. Request blocked.");
                }

                try {
                    List<TelephonyProvidersEdgeDestination> rawDestinations = querier.fetchAllDestinations();
                    List<TelephonyProvidersEdgeDestination> validDestinations = rawDestinations.stream()
                        .filter(d -> DestinationValidator.validate(d).isValid())
                        .collect(Collectors.toList());

                    cacheSync.invalidateCache(cacheKey);
                    cacheSync.getCachedDestinations(cacheKey);

                    long duration = System.currentTimeMillis() - start;
                    metricsAudit.recordQuery(true, duration);
                    metricsAudit.logAudit("QUERY_SUCCESS", "AGGREGATED", String.valueOf(validDestinations.size()), "VALIDATED");
                    cacheSync.pushHealthMetrics("AGGREGATED", rawDestinations.size(), validDestinations.size(), duration);

                    return validDestinations;
                } catch (Exception e) {
                    attempt++;
                    lastException = e;
                    querier.recordFailure();
                    metricsAudit.logAudit("QUERY_FAILURE", "AGGREGATED", "N/A", e.getMessage());
                    Thread.sleep(1_000L * (1L << attempt));
                }
            }
            throw lastException;
        }
    }

    public static class DestinationQuerier {
        private final TelephonyProvidersEdgesApi edgesApi;
        private final TelephonyProvidersEdgesDestinationsApi destinationsApi;
        private final AtomicInteger failures = new AtomicInteger(0);
        private volatile boolean circuitOpen = false;
        private volatile long lastFailureTime = 0;
        private static final int FAILURE_THRESHOLD = 5;
        private static final long OPEN_TIMEOUT_MS = 30_000;

        public DestinationQuerier(ApiClient apiClient) {
            this.edgesApi = new TelephonyProvidersEdgesApi(apiClient);
            this.destinationsApi = new TelephonyProvidersEdgesDestinationsApi(apiClient);
        }

        public boolean allowRequest() {
            if (circuitOpen) {
                if (System.currentTimeMillis() - lastFailureTime > OPEN_TIMEOUT_MS) {
                    circuitOpen = false;
                    failures.set(0);
                    return true;
                }
                return false;
            }
            return true;
        }

        public void recordFailure() {
            if (failures.incrementAndGet() >= FAILURE_THRESHOLD) {
                circuitOpen = true;
                lastFailureTime = System.currentTimeMillis();
            }
        }

        public void recordSuccess() {
            failures.set(0);
            circuitOpen = false;
        }

        public List<TelephonyProvidersEdgeDestination> fetchAllDestinations() throws Exception {
            List<TelephonyProvidersEdgeDestination> allDestinations = new ArrayList<>();
            String edgeContinuation = null;

            do {
                TelephonyProvidersEdgeEntityListing edges = edgesApi.getTelephonyProvidersEdges(
                    100, null, null, null, null, edgeContinuation, null, false, null, false
                );
                for (String edgeId : edges.getEntities()) {
                    String destContinuation = null;
                    do {
                        TelephonyProvidersEdgeDestinationEntityListing dests = destinationsApi.getTelephonyProvidersEdgesEdgeIdDestinations(
                            edgeId, 100, null, null, null, destContinuation, null, false, null, false
                        );
                        allDestinations.addAll(dests.getEntities());
                        destContinuation = dests.getContinuationToken();
                    } while (destContinuation != null);
                }
                edgeContinuation = edges.getContinuationToken();
            } while (edgeContinuation != null);

            recordSuccess();
            return allDestinations;
        }
    }

    public static class DestinationValidator {
        private static final Pattern SIP_URI_PATTERN = 
            Pattern.compile("^sip:([a-zA-Z0-9._%+-]+)@([a-zA-Z0-9.-]+)(:\\d+)?(;transport=(tcp|tls|udp))?$");
        private static final Set<String> SUPPORTED_CODECS = Set.of("G711U", "G711A", "G729", "OPUS");

        public static ValidationResult validate(TelephonyProvidersEdgeDestination destination) {
            String address = destination.getAddress();
            if (address == null || address.isBlank()) {
                return new ValidationResult(false, "Missing SIP address");
            }
            Matcher matcher = SIP_URI_PATTERN.matcher(address);
            if (!matcher.matches()) {
                return new ValidationResult(false, "Invalid SIP URI format: " + address);
            }
            String codec = destination.getCodec();
            if (codec == null || !SUPPORTED_CODECS.contains(codec.toUpperCase())) {
                return new ValidationResult(false, "Incompatible codec: " + codec);
            }
            return new ValidationResult(true, "Valid");
        }

        public record ValidationResult(boolean isValid, String message) {}
    }

    public static class DestinationCacheAndSync {
        private final Cache<String, List<TelephonyProvidersEdgeDestination>> destinationCache;
        private final HttpClient httpClient;
        private final ObjectMapper mapper;
        private final String webhookUrl;
        private final Map<String, Long> lastSyncTimestamps = new ConcurrentHashMap<>();

        public DestinationCacheAndSync(String webhookUrl) {
            this.destinationCache = Caffeine.newBuilder()
                .expireAfterWrite(Duration.ofMinutes(5))
                .maximumSize(500)
                .build();
            this.httpClient = HttpClient.newBuilder().connectTimeout(Duration.ofSeconds(10)).build();
            this.mapper = new ObjectMapper();
            this.webhookUrl = webhookUrl;
        }

        public List<TelephonyProvidersEdgeDestination> getCachedDestinations(String cacheKey) {
            return destinationCache.get(cacheKey, k -> List.of());
        }

        public void invalidateCache(String cacheKey) {
            destinationCache.invalidate(cacheKey);
        }

        public void pushHealthMetrics(String edgeId, long total, long valid, long latencyMs) throws Exception {
            if (System.currentTimeMillis() - lastSyncTimestamps.getOrDefault(edgeId, 0L) < 30_000) return;
            lastSyncTimestamps.put(edgeId, System.currentTimeMillis());

            Map<String, Object> payload = Map.of(
                "edgeId", edgeId, "total", total, "valid", valid, "latencyMs", latencyMs, "ts", System.currentTimeMillis()
            );
            HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(webhookUrl))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(mapper.writeValueAsString(payload)))
                .build();
            HttpResponse<String> response = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
            if (response.statusCode() < 200 || response.statusCode() >= 300) {
                throw new RuntimeException("Webhook sync failed: " + response.statusCode());
            }
        }
    }

    public static class DestinationMetricsAndAudit {
        private final io.micrometer.core.instrument.Timer queryTimer;
        private final io.micrometer.core.instrument.Counter successCounter;
        private final io.micrometer.core.instrument.Counter failureCounter;

        public DestinationMetricsAndAudit(MeterRegistry registry) {
            this.queryTimer = io.micrometer.core.instrument.Timer.builder("genesys.destination.query.latency").register(registry);
            this.successCounter = io.micrometer.core.instrument.Counter.builder("genesys.destination.query.success").register(registry);
            this.failureCounter = io.micrometer.core.instrument.Counter.builder("genesys.destination.query.failure").register(registry);
        }

        public void recordQuery(boolean success, long durationMs) {
            queryTimer.record(durationMs, java.util.concurrent.TimeUnit.MILLISECONDS);
            if (success) successCounter.increment();
            else failureCounter.increment();
        }

        public void logAudit(String action, String edgeId, String address, String status) {
            AUDIT_LOGGER.info("DESTINATION_AUDIT|action={}|edgeId={}|address={}|status={}|timestamp={}",
                action, edgeId, address, status, System.currentTimeMillis());
        }
    }
}

Common Errors & Debugging

Error: HTTP 401 Unauthorized

• Cause: Invalid client credentials, missing OAuth scopes, or expired token without automatic refresh.
• Fix: Verify GENESYS_CLIENT_ID and GENESYS_CLIENT_SECRET environment variables. Ensure the OAuth constructor includes telephony:edge:read. The SDK refreshes tokens automatically, but manual initialization requires a successful initial call to oauth.getAccessToken().
• Code: Add explicit token validation before API calls.

Error: HTTP 403 Forbidden

• Cause: The OAuth client lacks telephony:edge:destination:read scope or the organization has not enabled Cloud Connect licensing.
• Fix: Update the OAuth client scopes in the Genesys Cloud admin console. Verify integration license entitlements under the Organization settings.
• Code: Check e.getCode() in ApiException catch blocks and map 403 to a license validation alert.

Error: HTTP 429 Too Many Requests

• Cause: Exceeding Genesys Cloud rate limits during pagination or high-frequency polling.
• Fix: Implement the circuit breaker pattern shown in Step 1. Increase exponential backoff intervals. Respect Retry-After headers if present.
• Code: The DestinationQuerier class tracks failures and blocks requests during the open window. Adjust FAILURE_THRESHOLD and OPEN_TIMEOUT_MS based on your quota.

Error: SIP URI Validation Failure

• Cause: Destination addresses contain non-RFC 3261 compliant formats, missing transport parameters, or unsupported ports.
• Fix: Standardize address provisioning in the telephony edge configuration. Update the regex pattern if custom transports are required.
• Code: The DestinationValidator returns a structured ValidationResult. Log rejected addresses to the audit trail for provisioning correction.

Error: Codec Incompatibility

• Cause: Edge destinations configured with codecs outside the supported set (G.711U, G.711A, G.729, OPUS).
• Fix: Align edge codec settings with Genesys Cloud media requirements. Update SUPPORTED_CODECS if your deployment enables additional codecs.
• Code: The validation pipeline filters incompatible destinations before returning them to the automation layer.

Official References

• Telephony Providers Edges API
• Telephony Providers Edge Destinations API
• Genesys Cloud Java SDK Reference
• OAuth 2.0 Client Credentials Flow
• SIP URI RFC 3261 Compliance