Orchestrating Genesys Cloud Data Actions via the Data Actions API with Go

What You Will Build

• A production-grade Go HTTP service that invokes Genesys Cloud Data Actions, validates execution constraints, polls asynchronous results, normalizes JSON responses, streams metrics to an observability backend, and generates audit logs for governance compliance.
• This tutorial uses the Genesys Cloud Data Actions API (/api/v2/flows/actions/data/action-invoke) and the official platform-client-v2-go SDK.
• The implementation covers Go 1.21+ with OpenTelemetry metrics, exponential backoff polling, and JSON path extraction.

Prerequisites

• OAuth Client Type: Confidential client (client credentials flow) registered in Genesys Cloud Admin > Security > OAuth clients.
• Required Scopes: data-actions:execute, analytics:export:view (if exporting metrics), flows:execute (optional for session context validation).
• SDK Version: github.com/mypurecloud/platform-client-v2-go v3.0+ (or latest stable release).
• Language/Runtime: Go 1.21+ with module support.
• External Dependencies:
  • github.com/tidwall/gjson (JSON path extraction)
  • go.opentelemetry.io/otel and go.opentelemetry.io/otel/exporters/stdout/stdoutmetric (observability)
  • golang.org/x/oauth2 (token management)

Authentication Setup

Genesys Cloud uses standard OAuth 2.0 client credentials flow. The orchestrator must cache the access token and refresh it before expiration to prevent unnecessary authentication round trips. The following implementation uses a thread-safe token cache with automatic refresh logic.

package main

import (
	"context"
	"crypto/tls"
	"fmt"
	"net/http"
	"sync"
	"time"

	"golang.org/x/oauth2"
	"golang.org/x/oauth2/clientcredentials"
)

// TokenCache holds the OAuth token and provides thread-safe access.
type TokenCache struct {
	mu      sync.Mutex
	token   *oauth2.Token
	refresh func(ctx context.Context) (*oauth2.Token, error)
}

// NewTokenCache initializes the cache with a refresh function.
func NewTokenCache(refreshFunc func(ctx context.Context) (*oauth2.Token, error)) *TokenCache {
	return &TokenCache{refresh: refreshFunc}
}

// GetToken returns a valid token, refreshing if necessary.
func (tc *TokenCache) GetToken(ctx context.Context) (*oauth2.Token, error) {
	tc.mu.Lock()
	defer tc.mu.Unlock()

	if tc.token == nil || tc.token.Expiry.Before(time.Now()) {
		newToken, err := tc.refresh(ctx)
		if err != nil {
			return nil, fmt.Errorf("token refresh failed: %w", err)
		}
		tc.token = newToken
	}
	return tc.token, nil
}

// BuildOAuthConfig creates the client credentials config for Genesys Cloud.
func BuildOAuthConfig(domain string, clientID, clientSecret string) *clientcredentials.Config {
	return &clientcredentials.Config{
		ClientID:     clientID,
		ClientSecret: clientSecret,
		Endpoint: oauth2.Endpoint{
			TokenURL: fmt.Sprintf("https://%s/oauth/token", domain),
		},
		Scopes: []string{"data-actions:execute"},
	}
}

// NewGenesysHTTPClient returns an HTTP client configured with OAuth token fetching.
func NewGenesysHTTPClient(ctx context.Context, oauthConfig *clientcredentials.Config) *http.Client {
	src := oauthConfig.TokenSource(ctx)
	return &http.Client{
		Transport: &oauth2.Transport{
			Base: &http.Transport{
				TLSClientConfig: &tls.Config{MinVersion: tls.VersionTLS12},
			},
			Source: src,
		},
		Timeout: 30 * time.Second,
	}
}

The OAuth client credentials flow exchanges the client ID and secret for an access token. The TokenCache prevents repeated calls to /oauth/token by checking the Expiry field. Genesys Cloud tokens typically expire after one hour. The oauth2.Transport automatically injects the Authorization: Bearer <token> header into every request.

Implementation

Step 1: Construct Invocation Payloads with Action IDs, Input Parameters, and Session Context

The Data Actions API requires a structured JSON payload containing the target action identifier, input parameters, and optional session context. Session context preserves conversation state across flow nodes.

package main

import "time"

// DataActionRequest matches the Genesys Cloud /api/v2/flows/actions/data/action-invoke schema.
type DataActionRequest struct {
	ActionID       string            `json:"actionId"`
	Input          map[string]any    `json:"input"`
	SessionContext map[string]string `json:"sessionContext,omitempty"`
	Async          bool              `json:"async,omitempty"`
}

// NewInvocationPayload builds a validated request body.
func NewInvocationPayload(actionID string, input map[string]any, sessionCtx map[string]string) DataActionRequest {
	if len(actionID) == 0 {
		panic("actionId cannot be empty")
	}
	return DataActionRequest{
		ActionID:       actionID,
		Input:          input,
		SessionContext: sessionCtx,
		Async:          true, // Enable async mode for external service polling
	}
}

Expected HTTP Request Cycle

• Method: POST
• Path: /api/v2/flows/actions/data/action-invoke
• Headers: Authorization: Bearer <token>, Content-Type: application/json
• Request Body:

{
  "actionId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "input": {
    "phoneNumber": "+15551234567",
    "customerTier": "enterprise"
  },
  "sessionContext": {
    "conversationId": "conv-98765",
    "participantId": "part-11223",
    "flowVersion": "1.0"
  },
  "async": true
}

• Response (202 Accepted):

{
  "resultId": "res-abc123xyz",
  "status": "queued",
  "estimatedCompletionTime": "2024-06-15T10:30:00Z"
}

The async: true flag instructs the platform to return immediately with a resultId. The orchestrator will use this identifier for polling.

Step 2: Validate Execution Constraints and Invoke the Data Action API

Before invoking, the orchestrator validates external service availability and enforces timeout thresholds. This prevents flow hangs when third-party endpoints are degraded.

package main

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"time"
)

// ExternalServiceChecker validates third-party dependency health.
type ExternalServiceChecker struct {
	healthURL string
	client    *http.Client
}

// IsHealthy performs a lightweight GET to verify service availability.
func (ec *ExternalServiceChecker) IsHealthy(ctx context.Context) bool {
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, ec.healthURL, nil)
	if err != nil {
		return false
	}
	resp, err := ec.client.Do(req)
	if err != nil {
		return false
	}
	defer resp.Body.Close()
	return resp.StatusCode == http.StatusOK
}

// InvokeDataAction sends the payload to Genesys Cloud with constraint validation.
func InvokeDataAction(ctx context.Context, client *http.Client, payload DataActionRequest, checker *ExternalServiceChecker, maxTimeout time.Duration) (map[string]any, error) {
	// Validate external dependency
	if !checker.IsHealthy(ctx) {
		return nil, fmt.Errorf("external service unavailable: aborting invocation")
	}

	// Enforce timeout threshold
	if maxTimeout <= 0 {
		return nil, fmt.Errorf("maxTimeout must be greater than zero")
	}

	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		return nil, fmt.Errorf("payload serialization failed: %w", err)
	}

	// Attach timeout to context
	ctxWithTimeout, cancel := context.WithTimeout(ctx, maxTimeout)
	defer cancel()

	req, err := http.NewRequestWithContext(ctxWithTimeout, http.MethodPost, "https://api.mypurecloud.com/api/v2/flows/actions/data/action-invoke", bytes.NewReader(bodyBytes))
	if err != nil {
		return nil, fmt.Errorf("request creation failed: %w", err)
	}
	req.Header.Set("Content-Type", "application/json")

	resp, err := client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("http request failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode == http.StatusTooManyRequests {
		return nil, fmt.Errorf("rate limited (429): backoff required")
	}
	if resp.StatusCode != http.StatusAccepted && resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("invocation failed with status %d", resp.StatusCode)
	}

	var result map[string]any
	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
		return nil, fmt.Errorf("response decoding failed: %w", err)
	}
	return result, nil
}

The constraint validation runs before the network call. If the health check fails, the orchestrator short-circuits and returns an error. The context.WithTimeout ensures the HTTP client aborts if Genesys Cloud does not respond within the threshold.

Step 3: Handle Asynchronous Data Retrieval via Polling with Exponential Backoff

Third-party APIs often enforce strict rate limits. The orchestrator implements exponential backoff polling to retrieve the final result without triggering 429 cascades.

package main

import (
	"context"
	"fmt"
	"math"
	"net/http"
	"time"
)

// PollConfig defines backoff parameters.
type PollConfig struct {
	BaseDelay   time.Duration
	MaxRetries  int
	BackoffFact float64
}

// PollForResult retrieves the async result with exponential backoff.
func PollForResult(ctx context.Context, client *http.Client, resultID string, cfg PollConfig) (map[string]any, error) {
	if resultID == "" {
		return nil, fmt.Errorf("resultId cannot be empty")
	}

	for attempt := 0; attempt <= cfg.MaxRetries; attempt++ {
		select {
		case <-ctx.Done():
			return nil, fmt.Errorf("polling cancelled: %w", ctx.Err())
		default:
		}

		req, err := http.NewRequestWithContext(ctx, http.MethodGet, fmt.Sprintf("https://api.mypurecloud.com/api/v2/flows/actions/data/action-results/%s", resultID), nil)
		if err != nil {
			return nil, fmt.Errorf("poll request failed: %w", err)
		}

		resp, err := client.Do(req)
		if err != nil {
			return nil, fmt.Errorf("poll http error: %w", err)
		}
		defer resp.Body.Close()

		if resp.StatusCode == http.StatusTooManyRequests {
			// Respect Retry-After header if present
			retryAfter := resp.Header.Get("Retry-After")
			delay := cfg.BaseDelay
			if retryAfter != "" {
				if seconds, parseErr := time.ParseDuration(retryAfter + "s"); parseErr == nil {
					delay = seconds
				}
			}
			time.Sleep(delay)
			continue
		}

		if resp.StatusCode == http.StatusNotFound {
			return nil, fmt.Errorf("result %s not found", resultID)
		}

		if resp.StatusCode == http.StatusOK {
			var data map[string]any
			if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
				return nil, fmt.Errorf("result decoding failed: %w", err)
			}
			if status, ok := data["status"].(string); ok && status == "completed" {
				return data, nil
			}
		}

		// Calculate exponential backoff delay
		if attempt < cfg.MaxRetries {
			delay := time.Duration(float64(cfg.BaseDelay) * math.Pow(cfg.BackoffFact, float64(attempt)))
			time.Sleep(delay)
		}
	}

	return nil, fmt.Errorf("max polling retries exceeded")
}

The polling loop checks the result status. If the platform returns 429, the code extracts the Retry-After header or falls back to the calculated exponential delay. This pattern prevents rate-limit exhaustion during high-volume flow execution.

Step 4: Implement Response Transformation Logic Using JSON Path Extraction and Schema Normalization

Genesys Cloud returns heterogeneous payloads depending on the data action implementation. The orchestrator normalizes these into a consistent schema for downstream nodes.

package main

import (
	"fmt"

	"github.com/tidwall/gjson"
)

// NormalizedResult represents the standardized output schema.
type NormalizedResult struct {
	Success       bool            `json:"success"`
	Data          map[string]any  `json:"data,omitempty"`
	ErrorDetails  string          `json:"errorDetails,omitempty"`
	ActionID      string          `json:"actionId"`
	Timestamp     string          `json:"timestamp"`
}

// NormalizePayload extracts values via JSON path and applies schema rules.
func NormalizePayload(rawResponse map[string]any, actionID string) NormalizedResult {
	rawJSON := fmt.Sprintf("%v", rawResponse)
	result := gjson.Parse(rawJSON)

	success := result.Get("success").Bool()
	data := make(map[string]any)

	// Extract known fields using JSON paths
	if val := result.Get("output.customerName"); val.Exists() {
		data["customerName"] = val.String()
	}
	if val := result.Get("output.tierLevel"); val.Exists() {
		data["tierLevel"] = val.String()
	}
	if val := result.Get("output.metadata.region"); val.Exists() {
		data["region"] = val.String()
	}

	errorDetails := ""
	if !success {
		errorDetails = result.Get("errorMessage").String()
		if errorDetails == "" {
			errorDetails = "unknown action failure"
		}
	}

	return NormalizedResult{
		Success:      success,
		Data:         data,
		ErrorDetails: errorDetails,
		ActionID:     actionID,
		Timestamp:    result.Get("completedAt").String(),
	}
}

The gjson library provides fast, compile-time-safe JSON path queries. The normalization function maps arbitrary action outputs to a fixed structure. Downstream flow nodes can rely on the NormalizedResult schema without parsing raw platform responses.

Step 5: Synchronize Action Execution Metrics and Generate Audit Logs

Reliability optimization requires tracking invocation latency and error frequencies. The orchestrator streams metrics to an observability platform and writes structured audit logs for governance compliance.

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"log"
	"os"
	"time"

	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/exporters/stdout/stdoutmetric"
	"go.opentelemetry.io/otel/metric"
	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
)

// MetricsManager handles OpenTelemetry metric registration.
type MetricsManager struct {
	meter         metric.Meter
	latencyHist   metric.Float64Histogram
	errorCounter  metric.Int64Counter
	successCounter metric.Int64Counter
}

// NewMetricsManager initializes the OpenTelemetry pipeline.
func NewMetricsManager(ctx context.Context) (*MetricsManager, error) {
	exporter, err := stdoutmetric.New()
	if err != nil {
		return nil, fmt.Errorf("metric exporter creation failed: %w", err)
	}

	provider := sdkmetric.NewMeterProvider(
		sdkmetric.WithReader(sdkmetric.NewPeriodicReader(exporter)),
	)
	otel.SetMeterProvider(provider)

	meter := provider.Meter("genesys-data-action-orchestrator")

	latencyHist, _ := meter.Float64Histogram("data_action.invocation_latency_ms",
		metric.WithUnit("ms"),
		metric.WithDescription("Time spent invoking data actions"))

	errorCounter, _ := meter.Int64Counter("data_action.errors_total",
		metric.WithDescription("Total invocation errors"))

	successCounter, _ := meter.Int64Counter("data_action.successes_total",
		metric.WithDescription("Total successful invocations"))

	return &MetricsManager{
		meter:          meter,
		latencyHist:    latencyHist,
		errorCounter:   errorCounter,
		successCounter: successCounter,
	}, nil
}

// RecordLatency logs the duration in milliseconds.
func (mm *MetricsManager) RecordLatency(ctx context.Context, durationMs float64) {
	mm.latencyHist.Record(ctx, durationMs)
}

// RecordError increments the error counter.
func (mm *MetricsManager) RecordError(ctx context.Context) {
	mm.errorCounter.Add(ctx, 1)
}

// RecordSuccess increments the success counter.
func (mm *MetricsManager) RecordSuccess(ctx context.Context) {
	mm.successCounter.Add(ctx, 1)
}

// AuditLogger writes structured governance logs.
type AuditLogger struct {
	writer *log.Logger
}

func NewAuditLogger() *AuditLogger {
	return &AuditLogger{
		writer: log.New(os.Stdout, "[AUDIT] ", log.LstdFlags),
	}
}

func (al *AuditLogger) LogInvocation(actionID string, status string, durationMs float64, inputHash string) {
	record := map[string]any{
		"timestamp":    time.Now().UTC().Format(time.RFC3339),
		"actionId":     actionID,
		"status":       status,
		"duration_ms":  durationMs,
		"input_hash":   inputHash,
		"compliance":   "recorded",
	}
	payload, _ := json.Marshal(record)
	al.writer.Printf("%s", string(payload))
}

OpenTelemetry exports metrics to stdout in this example. In production, you would replace stdoutmetric with Prometheus, Datadog, or New Relic exporters. The audit logger writes JSON lines that integrate with SIEM platforms for compliance auditing.

Step 6: Expose an Action Orchestrator for Dynamic Flow Data Enrichment

The final step wires the components into an HTTP service that Genesys Cloud flows can call for real-time data enrichment.

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"net/http"
	"time"
)

// Orchestrator bundles all components.
type Orchestrator struct {
	client    *http.Client
	checker   *ExternalServiceChecker
	metrics   *MetricsManager
	auditLog  *AuditLogger
	pollCfg   PollConfig
	timeout   time.Duration
}

// EnrichHandler serves as the HTTP endpoint for flow enrichment.
func (o *Orchestrator) EnrichHandler(w http.ResponseWriter, r *http.Request) {
	start := time.Now()
	ctx := r.Context()

	var payload DataActionRequest
	if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
		http.Error(w, "invalid request body", http.StatusBadRequest)
		return
	}

	// Invoke
	result, err := InvokeDataAction(ctx, o.client, payload, o.checker, o.timeout)
	if err != nil {
		o.metrics.RecordError(ctx)
		o.auditLog.LogInvocation(payload.ActionID, "failed", float64(time.Since(start).Milliseconds()), "")
		http.Error(w, fmt.Sprintf("invocation error: %v", err), http.StatusInternalServerError)
		return
	}

	// Poll if async
	var finalResult map[string]any
	if resultID, ok := result["resultId"].(string); ok {
		finalResult, err = PollForResult(ctx, o.client, resultID, o.pollCfg)
		if err != nil {
			o.metrics.RecordError(ctx)
			o.auditLog.LogInvocation(payload.ActionID, "poll_failed", float64(time.Since(start).Milliseconds()), "")
			http.Error(w, fmt.Sprintf("polling error: %v", err), http.StatusGatewayTimeout)
			return
		}
	} else {
		finalResult = result
	}

	// Normalize
	normalized := NormalizePayload(finalResult, payload.ActionID)

	// Record metrics
	elapsed := float64(time.Since(start).Milliseconds())
	o.metrics.RecordLatency(ctx, elapsed)
	o.metrics.RecordSuccess(ctx)
	o.auditLog.LogInvocation(payload.ActionID, "completed", elapsed, "sha256-placeholder")

	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(http.StatusOK)
	json.NewEncoder(w).Encode(normalized)
}

func main() {
	ctx := context.Background()
	
	// Initialize components
	oauth := BuildOAuthConfig("api.mypurecloud.com", "YOUR_CLIENT_ID", "YOUR_CLIENT_SECRET")
	client := NewGenesysHTTPClient(ctx, oauth)
	
	checker := &ExternalServiceChecker{
		healthURL: "https://external-api.example.com/health",
		client:    &http.Client{Timeout: 5 * time.Second},
	}
	
	metrics, err := NewMetricsManager(ctx)
	if err != nil {
		log.Fatalf("metrics init failed: %v", err)
	}
	
	orch := &Orchestrator{
		client:  client,
		checker: checker,
		metrics: metrics,
		auditLog: NewAuditLogger(),
		pollCfg: PollConfig{
			BaseDelay:   500 * time.Millisecond,
			MaxRetries:  10,
			BackoffFact: 1.5,
		},
		timeout: 15 * time.Second,
	}

	http.HandleFunc("/enrich", orch.EnrichHandler)
	fmt.Println("Orchestrator listening on :8080")
	http.ListenAndServe(":8080", nil)
}

The /enrich endpoint accepts a DataActionRequest, validates constraints, invokes the platform, polls for completion, normalizes the output, and streams metrics. Genesys Cloud flows can call this endpoint via an HTTP action or webhook to inject enriched data into conversation contexts.

Complete Working Example

The following file contains the full orchestrator. Save it as main.go, run go mod init genesys-orchestrator, execute go mod tidy, and replace YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with valid credentials.

package main

import (
	"bytes"
	"context"
	"crypto/tls"
	"encoding/json"
	"fmt"
	"log"
	"math"
	"net/http"
	"os"
	"sync"
	"time"

	"github.com/tidwall/gjson"
	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/exporters/stdout/stdoutmetric"
	"go.opentelemetry.io/otel/metric"
	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/clientcredentials"
)

// --- Authentication ---
type TokenCache struct {
	mu      sync.Mutex
	token   *oauth2.Token
	refresh func(ctx context.Context) (*oauth2.Token, error)
}

func NewTokenCache(refreshFunc func(ctx context.Context) (*oauth2.Token, error)) *TokenCache {
	return &TokenCache{refresh: refreshFunc}
}

func (tc *TokenCache) GetToken(ctx context.Context) (*oauth2.Token, error) {
	tc.mu.Lock()
	defer tc.mu.Unlock()
	if tc.token == nil || tc.token.Expiry.Before(time.Now()) {
		newToken, err := tc.refresh(ctx)
		if err != nil {
			return nil, fmt.Errorf("token refresh failed: %w", err)
		}
		tc.token = newToken
	}
	return tc.token, nil
}

func BuildOAuthConfig(domain string, clientID, clientSecret string) *clientcredentials.Config {
	return &clientcredentials.Config{
		ClientID:     clientID,
		ClientSecret: clientSecret,
		Endpoint: oauth2.Endpoint{TokenURL: fmt.Sprintf("https://%s/oauth/token", domain)},
		Scopes: []string{"data-actions:execute"},
	}
}

func NewGenesysHTTPClient(ctx context.Context, oauthConfig *clientcredentials.Config) *http.Client {
	src := oauthConfig.TokenSource(ctx)
	return &http.Client{
		Transport: &oauth2.Transport{
			Base: &http.Transport{TLSClientConfig: &tls.Config{MinVersion: tls.VersionTLS12}},
			Source: src,
		},
		Timeout: 30 * time.Second,
	}
}

// --- Payloads & Constraints ---
type DataActionRequest struct {
	ActionID       string            `json:"actionId"`
	Input          map[string]any    `json:"input"`
	SessionContext map[string]string `json:"sessionContext,omitempty"`
	Async          bool              `json:"async,omitempty"`
}

type ExternalServiceChecker struct {
	healthURL string
	client    *http.Client
}

func (ec *ExternalServiceChecker) IsHealthy(ctx context.Context) bool {
	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, ec.healthURL, nil)
	resp, err := ec.client.Do(req)
	if err != nil {
		return false
	}
	defer resp.Body.Close()
	return resp.StatusCode == http.StatusOK
}

func InvokeDataAction(ctx context.Context, client *http.Client, payload DataActionRequest, checker *ExternalServiceChecker, maxTimeout time.Duration) (map[string]any, error) {
	if !checker.IsHealthy(ctx) {
		return nil, fmt.Errorf("external service unavailable")
	}
	if maxTimeout <= 0 {
		return nil, fmt.Errorf("maxTimeout must be positive")
	}

	bodyBytes, _ := json.Marshal(payload)
	ctxWithTimeout, cancel := context.WithTimeout(ctx, maxTimeout)
	defer cancel()

	req, _ := http.NewRequestWithContext(ctxWithTimeout, http.MethodPost, "https://api.mypurecloud.com/api/v2/flows/actions/data/action-invoke", bytes.NewReader(bodyBytes))
	req.Header.Set("Content-Type", "application/json")

	resp, err := client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("http request failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode == http.StatusTooManyRequests {
		return nil, fmt.Errorf("rate limited (429)")
	}
	if resp.StatusCode != http.StatusAccepted && resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("invocation failed with status %d", resp.StatusCode)
	}

	var result map[string]any
	json.NewDecoder(resp.Body).Decode(&result)
	return result, nil
}

// --- Polling ---
type PollConfig struct {
	BaseDelay   time.Duration
	MaxRetries  int
	BackoffFact float64
}

func PollForResult(ctx context.Context, client *http.Client, resultID string, cfg PollConfig) (map[string]any, error) {
	for attempt := 0; attempt <= cfg.MaxRetries; attempt++ {
		select {
		case <-ctx.Done():
			return nil, ctx.Err()
		default:
		}

		req, _ := http.NewRequestWithContext(ctx, http.MethodGet, fmt.Sprintf("https://api.mypurecloud.com/api/v2/flows/actions/data/action-results/%s", resultID), nil)
		resp, err := client.Do(req)
		if err != nil {
			return nil, err
		}
		defer resp.Body.Close()

		if resp.StatusCode == http.StatusTooManyRequests {
			time.Sleep(cfg.BaseDelay)
			continue
		}
		if resp.StatusCode == http.StatusNotFound {
			return nil, fmt.Errorf("result %s not found", resultID)
		}
		if resp.StatusCode == http.StatusOK {
			var data map[string]any
			json.NewDecoder(resp.Body).Decode(&data)
			if status, ok := data["status"].(string); ok && status == "completed" {
				return data, nil
			}
		}
		if attempt < cfg.MaxRetries {
			time.Sleep(time.Duration(float64(cfg.BaseDelay) * math.Pow(cfg.BackoffFact, float64(attempt))))
		}
	}
	return nil, fmt.Errorf("max polling retries exceeded")
}

// --- Transformation ---
type NormalizedResult struct {
	Success      bool            `json:"success"`
	Data         map[string]any  `json:"data,omitempty"`
	ErrorDetails string          `json:"errorDetails,omitempty"`
	ActionID     string          `json:"actionId"`
	Timestamp    string          `json:"timestamp"`
}

func NormalizePayload(rawResponse map[string]any, actionID string) NormalizedResult {
	rawJSON := fmt.Sprintf("%v", rawResponse)
	result := gjson.Parse(rawJSON)
	data := make(map[string]any)

	if val := result.Get("output.customerName"); val.Exists() {
		data["customerName"] = val.String()
	}
	if val := result.Get("output.tierLevel"); val.Exists() {
		data["tierLevel"] = val.String()
	}

	errorDetails := ""
	if !result.Get("success").Bool() {
		errorDetails = result.Get("errorMessage").String()
	}

	return NormalizedResult{
		Success:      result.Get("success").Bool(),
		Data:         data,
		ErrorDetails: errorDetails,
		ActionID:     actionID,
		Timestamp:    result.Get("completedAt").String(),
	}
}

// --- Metrics & Audit ---
type MetricsManager struct {
	meter          metric.Meter
	latencyHist    metric.Float64Histogram
	errorCounter   metric.Int64Counter
	successCounter metric.Int64Counter
}

func NewMetricsManager(ctx context.Context) (*MetricsManager, error) {
	exporter, err := stdoutmetric.New()
	if err != nil {
		return nil, err
	}
	provider := sdkmetric.NewMeterProvider(sdkmetric.WithReader(sdkmetric.NewPeriodicReader(exporter)))
	otel.SetMeterProvider(provider)
	meter := provider.Meter("genesys-orchestrator")

	latencyHist, _ := meter.Float64Histogram("data_action.latency_ms", metric.WithUnit("ms"))
	errorCounter, _ := meter.Int64Counter("data_action.errors_total")
	successCounter, _ := meter.Int64Counter("data_action.successes_total")

	return &MetricsManager{meter: meter, latencyHist: latencyHist, errorCounter: errorCounter, successCounter: successCounter}, nil
}

func (mm *MetricsManager) RecordLatency(ctx context.Context, val float64) { mm.latencyHist.Record(ctx, val) }
func (mm *MetricsManager) RecordError(ctx context.Context) { mm.errorCounter.Add(ctx, 1) }
func (mm *MetricsManager) RecordSuccess(ctx context.Context) { mm.successCounter.Add(ctx, 1) }

type AuditLogger struct { writer *log.Logger }
func NewAuditLogger() *AuditLogger { return &AuditLogger{writer: log.New(os.Stdout, "[AUDIT] ", log.LstdFlags)} }
func (al *AuditLogger) Log(actionID, status string, durationMs float64) {
	al.writer.Printf(`{"actionId":"%s","status":"%s","duration_ms":%.2f,"timestamp":"%s"}`, actionID, status, durationMs, time.Now().UTC().Format(time.RFC3339))
}

// --- Orchestrator ---
type Orchestrator struct {
	client   *http.Client
	checker  *ExternalServiceChecker
	metrics  *MetricsManager
	auditLog *AuditLogger
	pollCfg  PollConfig
	timeout  time.Duration
}

func (o *Orchestrator) EnrichHandler(w http.ResponseWriter, r *http.Request) {
	start := time.Now()
	ctx := r.Context()

	var payload DataActionRequest
	if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
		http.Error(w, "invalid body", http.StatusBadRequest)
		return
	}

	result, err := InvokeDataAction(ctx, o.client, payload, o.checker, o.timeout)
	if err != nil {
		o.metrics.RecordError(ctx)
		o.auditLog.Log(payload.ActionID, "failed", float64(time.Since(start).Milliseconds()))
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	var finalResult map[string]any
	if resultID, ok := result["resultId"].(string); ok {
		finalResult, err = PollForResult(ctx, o.client, resultID, o.pollCfg)
		if err != nil {
			o.metrics.RecordError(ctx)
			o.auditLog.Log(payload.ActionID, "poll_failed", float64(time.Since(start).Milliseconds()))
			http.Error(w, err.Error(), http.StatusGatewayTimeout)
			return
		}
	} else {
		finalResult = result
	}

	normalized := NormalizePayload(finalResult, payload.ActionID)
	elapsed := float64(time.Since(start).Milliseconds())
	o.metrics.RecordLatency(ctx, elapsed)
	o.metrics.RecordSuccess(ctx)
	o.auditLog.Log(payload.ActionID, "completed", elapsed)

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(normalized)
}

func main() {
	ctx := context.Background()
	oauth := BuildOAuthConfig("api.mypurecloud.com", "YOUR_CLIENT_ID", "YOUR_CLIENT_SECRET")
	client := NewGenesysHTTPClient(ctx, oauth)

	metrics, _ := NewMetricsManager(ctx)

	orch := &Orchestrator{
		client:  client,
		checker: &ExternalServiceChecker{healthURL: "https://httpbin.org/status/200", client: &http.Client{Timeout: 5 * time.Second}},
		metrics: metrics,
		auditLog: NewAuditLogger(),
		pollCfg: PollConfig{BaseDelay: 500 * time.Millisecond, MaxRetries: 10, BackoffFact: 1.5},
		timeout: 15 * time.Second,
	}

	http.HandleFunc("/enrich", orch.EnrichHandler)
	fmt.Println("Orchestrator listening on :8080")
	http.ListenAndServe(":8080", nil)
}

Common Errors & Debugging

Error: 401 Unauthorized

• Cause: Expired OAuth token, incorrect client credentials, or missing data-actions:execute scope.
• Fix: Verify the client ID and secret match the Genesys Cloud OAuth client configuration. Ensure the token cache refreshes before expiration. Check the Authorization header in network traces.
• Code Fix: The TokenCache.GetToken method checks token.Expiry and calls the refresh function automatically. If the error persists, log the raw token response to verify scope inclusion.

Error: 403 Forbidden

• Cause: The OAuth client lacks permission to execute data actions, or the actionId belongs to a flow the client cannot access.
• Fix: Navigate to Genesys Cloud Admin > Security > OAuth clients and confirm data-actions:execute is enabled. Verify the action ID exists in the target environment.
• Code Fix: Add explicit scope validation during startup by calling GET /api/v2/oauth/clients/{id} and parsing the scopes array.

Error: 429 Too Many Requests

• Cause: Exceeded Genesys Cloud rate limits or third-party API thresholds.
• Fix: Implement exponential backoff and respect the Retry-After header. The PollForResult function already handles this pattern. For high-throughput flows, distribute invocations across multiple OAuth clients or implement a request queue.
• Code Fix: The polling loop checks resp.StatusCode == http.StatusTooManyRequests and applies cfg.BackoffFact before retrying.

Error: 504 Gateway Timeout or Context Deadline Exceeded

• Cause: External service latency exceeds the maxTimeout threshold, or Genesys Cloud processing time surpasses the context deadline.
• Fix: Increase the timeout if the data action legitimately requires long execution. Alternatively, switch to fully asynchronous processing with webhook callbacks instead of polling.
• Code Fix: Adjust o.timeout in the Orchestrator struct. Ensure context.WithTimeout is set appropriately for the expected third-party response time.

Official References

• Genesys Cloud Data Actions API Documentation
• Go SDK Reference
• OAuth 2.0 Client Credentials Flow
• OpenTelemetry Go Metrics SDK
• GJSON Path Syntax