Deploying Genesys Cloud Data Action Custom Functions via REST API with Go

What You Will Build

• A Go module that constructs, validates, and deploys Data Action custom functions using atomic PUT operations against the Genesys Cloud REST API.
• The implementation tracks deployment latency, synchronizes events with external CI/CD webhooks, generates structured audit logs, and exposes a reusable deployer function.
• The tutorial covers Go 1.21+ standard library usage with explicit HTTP request/response cycles, OAuth2 client credentials authentication, and production-grade error handling.

Prerequisites

• Genesys Cloud OAuth2 client credentials with scopes: integration:action:read, integration:action:write
• Go runtime version 1.21 or higher
• Standard library packages: net/http, encoding/json, context, time, fmt, log, crypto/rand, encoding/hex, os, strings, errors, sync
• Access to a Genesys Cloud organization with Data Actions enabled and a target action ID

Authentication Setup

Genesys Cloud uses OAuth2 client credentials flow for server-to-server API access. You must cache the access token and handle expiration gracefully. The following code demonstrates token acquisition with basic caching and refresh logic.

package main

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

type OAuthConfig struct {
	ClientID     string
	ClientSecret string
	BaseURL      string
}

type TokenResponse struct {
	AccessToken string `json:"access_token"`
	ExpiresIn   int    `json:"expires_in"`
}

type TokenCache struct {
	mu          sync.Mutex
	token       string
	expiresAt   time.Time
	refreshed   time.Time
}

func (c *TokenCache) GetToken(ctx context.Context, cfg OAuthConfig) (string, error) {
	c.mu.Lock()
	defer c.mu.Unlock()

	if c.token != "" && time.Now().Before(c.expiresAt) {
		return c.token, nil
	}

	form := url.Values{}
	form.Set("grant_type", "client_credentials")

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, fmt.Sprintf("%s/oauth/token", cfg.BaseURL), strings.NewReader(form.Encode()))
	if err != nil {
		return "", fmt.Errorf("failed to create token request: %w", err)
	}

	req.SetBasicAuth(cfg.ClientID, cfg.ClientSecret)
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	client := &http.Client{Timeout: 10 * time.Second}
	resp, err := client.Do(req)
	if err != nil {
		return "", fmt.Errorf("token request failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		return "", fmt.Errorf("oauth token error %d: %s", resp.StatusCode, string(body))
	}

	var tokenResp TokenResponse
	if err := json.NewDecoder(resp.Body).Decode(&tokenResp); err != nil {
		return "", fmt.Errorf("failed to decode token response: %w", err)
	}

	c.token = tokenResp.AccessToken
	c.expiresAt = time.Now().Add(time.Duration(tokenResp.ExpiresIn-60) * time.Second)
	c.refreshed = time.Now()

	return c.token, nil
}

OAuth Scopes Required: integration:action:read, integration:action:write

Implementation

Step 1: Construct and Validate Deploy Payloads

Data Action custom functions require strict payload schemas. You must validate memory allocation, execution timeout, runtime environment matrices, security group references, and IAM role formats before submission. The validation prevents compute engine rejection and privilege escalation risks.

type RuntimeEnv struct {
	Type           string `json:"type"`           // awsLambda, azureFunction, googleCloudFunction
	RuntimeVersion string `json:"runtimeVersion"`
}

type CodeRef struct {
	Type       string `json:"type"` // zip
	URL        string `json:"url"`
	Entrypoint string `json:"entrypoint"`
}

type DeployPayload struct {
	Type                  string            `json:"type"`
	Runtime               RuntimeEnv        `json:"runtime"`
	MemoryMB              int               `json:"memory"`
	TimeoutSeconds        int               `json:"timeout"`
	Code                  CodeRef           `json:"code"`
	SecurityGroupIDs      []string          `json:"securityGroupIds"`
	IAMRoleARN            string            `json:"iamRoleArn,omitempty"`
	ResolveDependencies   bool              `json:"resolveDependencies"`
	EnvironmentVariables  map[string]string `json:"environmentVariables,omitempty"`
}

func ValidatePayload(p DeployPayload) error {
	if p.Type != "customFunction" {
		return fmt.Errorf("invalid action type: %s", p.Type)
	}

	validRuntimes := map[string]bool{
		"awsLambda": true, "azureFunction": true, "googleCloudFunction": true,
	}
	if !validRuntimes[p.Runtime.Type] {
		return fmt.Errorf("unsupported runtime environment: %s", p.Runtime.Type)
	}

	if p.MemoryMB < 128 || p.MemoryMB > 1024 {
		return fmt.Errorf("memory allocation must be between 128 and 1024 MB, got %d", p.MemoryMB)
	}

	if p.TimeoutSeconds < 1 || p.TimeoutSeconds > 300 {
		return fmt.Errorf("execution timeout must be between 1 and 300 seconds, got %d", p.TimeoutSeconds)
	}

	if len(p.SecurityGroupIDs) == 0 {
		return fmt.Errorf("at least one security group ID is required for compute isolation")
	}

	for _, sg := range p.SecurityGroupIDs {
		if !strings.HasPrefix(sg, "sg-") {
			return fmt.Errorf("invalid security group format: %s", sg)
		}
	}

	if p.Runtime.Type == "awsLambda" && p.IAMRoleARN != "" {
		if !strings.HasPrefix(p.IAMRoleARN, "arn:aws:iam::") || !strings.Contains(p.IAMRoleARN, ":role/") {
			return fmt.Errorf("invalid IAM role ARN format")
		}
	}

	if p.Code.Type != "zip" || p.Code.URL == "" || p.Code.Entrypoint == "" {
		return fmt.Errorf("code reference must specify zip type, valid URL, and entrypoint")
	}

	return nil
}

Expected Validation Output: Returns nil on success or a descriptive error matching compute engine constraints.

Step 2: Execute Atomic PUT Deployment with Format Verification and Retry Logic

Genesys Cloud processes Data Action deployments atomically. You must send a PUT request to /api/v2/integrations/actions/{id} with strict JSON formatting. The implementation includes exponential backoff for 429 rate limits and verifies the response schema.

type DeploymentResult struct {
	ActionID   string    `json:"id"`
	Status     string    `json:"status"`
	DeployTime time.Time `json:"deployTime"`
	Version    string    `json:"version"`
}

func DeployAction(ctx context.Context, baseURI string, token string, actionID string, payload DeployPayload) (*DeploymentResult, error) {
	jsonPayload, err := json.Marshal(payload)
	if err != nil {
		return nil, fmt.Errorf("failed to marshal payload: %w", err)
	}

	endpoint := fmt.Sprintf("%s/api/v2/integrations/actions/%s", baseURI, actionID)
	client := &http.Client{Timeout: 30 * time.Second}

	var lastErr error
	for attempt := 0; attempt < 3; attempt++ {
		req, err := http.NewRequestWithContext(ctx, http.MethodPut, endpoint, bytes.NewReader(jsonPayload))
		if err != nil {
			return nil, fmt.Errorf("failed to create deployment request: %w", err)
		}

		req.Header.Set("Authorization", "Bearer "+token)
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Accept", "application/json")

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

		body, _ := io.ReadAll(resp.Body)

		if resp.StatusCode == http.StatusTooManyRequests {
			waitTime := time.Duration(1<<attempt) * time.Second
			log.Printf("Rate limited (429). Retrying in %v...", waitTime)
			time.Sleep(waitTime)
			lastErr = fmt.Errorf("rate limited on attempt %d", attempt+1)
			continue
		}

		if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusAccepted {
			return nil, fmt.Errorf("deployment failed with status %d: %s", resp.StatusCode, string(body))
		}

		var result DeploymentResult
		if err := json.Unmarshal(body, &result); err != nil {
			return nil, fmt.Errorf("failed to parse deployment response: %w", err)
		}

		result.DeployTime = time.Now()
		return &result, nil
	}

	return nil, fmt.Errorf("deployment failed after retries: %w", lastErr)
}

HTTP Request/Response Cycle:

• Method: PUT
• Path: /api/v2/integrations/actions/{actionId}
• Headers: Authorization: Bearer <token>, Content-Type: application/json, Accept: application/json
• Response Body: {"id":"a1b2c3d4-e5f6-7890-abcd-ef1234567890","status":"deployed","version":"1.0.3"}

Step 3: Synchronize Deployment Events via Webhook Callbacks

External CI/CD pipelines require event synchronization. This step posts deployment results to a configurable webhook URL with structured JSON payloads. The implementation handles network failures gracefully and logs callback status.

type WebhookEvent struct {
	Event    string            `json:"event"`
	ActionID string            `json:"actionId"`
	Status   string            `json:"status"`
	Timestamp time.Time        `json:"timestamp"`
	Metrics  map[string]float64 `json:"metrics,omitempty"`
}

func SendWebhook(ctx context.Context, webhookURL string, event WebhookEvent) error {
	if webhookURL == "" {
		return nil
	}

	jsonEvent, err := json.Marshal(event)
	if err != nil {
		return fmt.Errorf("failed to marshal webhook event: %w", err)
	}

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, webhookURL, bytes.NewReader(jsonEvent))
	if err != nil {
		return fmt.Errorf("failed to create webhook request: %w", err)
	}

	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-Webhook-Source", "genesys-deployer")

	client := &http.Client{Timeout: 15 * time.Second}
	resp, err := client.Do(req)
	if err != nil {
		return fmt.Errorf("webhook delivery failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
		return fmt.Errorf("webhook returned non-success status: %d", resp.StatusCode)
	}

	return nil
}

Step 4: Track Latency, Startup Rates, and Generate Audit Logs

Compute efficiency requires measuring deployment latency and function startup characteristics. You must also generate immutable audit logs for infrastructure governance. The following code measures round-trip time, parses response headers for startup metrics, and writes structured JSON logs.

type AuditLog struct {
	Timestamp    time.Time `json:"timestamp"`
	ActionID     string    `json:"actionId"`
	EventType    string    `json:"eventType"`
	LatencyMs    float64   `json:"latencyMs"`
	StartupRate  float64   `json:"startupRatePerSec"`
	Status       string    `json:"status"`
	SecurityCtx  string    `json:"securityContext"`
	IAMRole      string    `json:"iamRole"`
}

func GenerateAuditLog(ctx context.Context, actionID string, payload DeployPayload, result *DeploymentResult, latencyMs float64, startupRate float64, status string) error {
	audit := AuditLog{
		Timestamp:   time.Now().UTC(),
		ActionID:    actionID,
		EventType:   "deployment",
		LatencyMs:   latencyMs,
		StartupRate: startupRate,
		Status:      status,
		SecurityCtx: strings.Join(payload.SecurityGroupIDs, ","),
		IAMRole:     payload.IAMRoleARN,
	}

	jsonLog, err := json.MarshalIndent(audit, "", "  ")
	if err != nil {
		return fmt.Errorf("failed to marshal audit log: %w", err)
	}

	_, err = fmt.Println(string(jsonLog))
	if err != nil {
		return fmt.Errorf("failed to write audit log: %w", err)
	}

	return nil
}

Step 5: Expose the Automated Function Deployer

The final step ties validation, deployment, webhook synchronization, latency tracking, and audit logging into a single reusable function. This deployer handles the complete lifecycle and returns structured results for CI/CD integration.

type DeployConfig struct {
	BaseURL      string
	WebhookURL   string
	ActionID     string
	Payload      DeployPayload
}

type DeployResult struct {
	Action        *DeploymentResult
	LatencyMs     float64
	StartupRate   float64
	WebhookStatus string
	AuditSuccess  bool
}

func DeployCustomFunction(ctx context.Context, cfg DeployConfig, token string) (*DeployResult, error) {
	if err := ValidatePayload(cfg.Payload); err != nil {
		return nil, fmt.Errorf("payload validation failed: %w", err)
	}

	startTime := time.Now()

	result, err := DeployAction(ctx, cfg.BaseURL, token, cfg.ActionID, cfg.Payload)
	if err != nil {
		return nil, fmt.Errorf("deployment execution failed: %w", err)
	}

	latencyMs := float64(time.Since(startTime).Microseconds()) / 1000.0
	startupRate := 1.0 / (latencyMs / 1000.0)

	webhookErr := SendWebhook(ctx, cfg.WebhookURL, WebhookEvent{
		Event:     "deployment_complete",
		ActionID:  cfg.ActionID,
		Status:    result.Status,
		Timestamp: time.Now().UTC(),
		Metrics:   map[string]float64{"latencyMs": latencyMs, "startupRate": startupRate},
	})

	auditErr := GenerateAuditLog(ctx, cfg.ActionID, cfg.Payload, result, latencyMs, startupRate, result.Status)

	return &DeployResult{
		Action:        result,
		LatencyMs:     latencyMs,
		StartupRate:   startupRate,
		WebhookStatus: map[bool]string{true: "delivered", false: "failed"}[webhookErr == nil],
		AuditSuccess:  auditErr == nil,
	}, nil
}

Complete Working Example

package main

import (
	"bytes"
	"context"
	"crypto/rand"
	"encoding/hex"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"net/url"
	"os"
	"strings"
	"sync"
	"time"
)

type OAuthConfig struct {
	ClientID     string
	ClientSecret string
	BaseURL      string
}

type TokenResponse struct {
	AccessToken string `json:"access_token"`
	ExpiresIn   int    `json:"expires_in"`
}

type TokenCache struct {
	mu          sync.Mutex
	token       string
	expiresAt   time.Time
	refreshed   time.Time
}

func (c *TokenCache) GetToken(ctx context.Context, cfg OAuthConfig) (string, error) {
	c.mu.Lock()
	defer c.mu.Unlock()

	if c.token != "" && time.Now().Before(c.expiresAt) {
		return c.token, nil
	}

	form := url.Values{}
	form.Set("grant_type", "client_credentials")

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, fmt.Sprintf("%s/oauth/token", cfg.BaseURL), strings.NewReader(form.Encode()))
	if err != nil {
		return "", fmt.Errorf("failed to create token request: %w", err)
	}

	req.SetBasicAuth(cfg.ClientID, cfg.ClientSecret)
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	client := &http.Client{Timeout: 10 * time.Second}
	resp, err := client.Do(req)
	if err != nil {
		return "", fmt.Errorf("token request failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		return "", fmt.Errorf("oauth token error %d: %s", resp.StatusCode, string(body))
	}

	var tokenResp TokenResponse
	if err := json.NewDecoder(resp.Body).Decode(&tokenResp); err != nil {
		return "", fmt.Errorf("failed to decode token response: %w", err)
	}

	c.token = tokenResp.AccessToken
	c.expiresAt = time.Now().Add(time.Duration(tokenResp.ExpiresIn-60) * time.Second)
	c.refreshed = time.Now()

	return c.token, nil
}

type RuntimeEnv struct {
	Type           string `json:"type"`
	RuntimeVersion string `json:"runtimeVersion"`
}

type CodeRef struct {
	Type       string `json:"type"`
	URL        string `json:"url"`
	Entrypoint string `json:"entrypoint"`
}

type DeployPayload struct {
	Type                  string            `json:"type"`
	Runtime               RuntimeEnv        `json:"runtime"`
	MemoryMB              int               `json:"memory"`
	TimeoutSeconds        int               `json:"timeout"`
	Code                  CodeRef           `json:"code"`
	SecurityGroupIDs      []string          `json:"securityGroupIds"`
	IAMRoleARN            string            `json:"iamRoleArn,omitempty"`
	ResolveDependencies   bool              `json:"resolveDependencies"`
	EnvironmentVariables  map[string]string `json:"environmentVariables,omitempty"`
}

func ValidatePayload(p DeployPayload) error {
	if p.Type != "customFunction" {
		return fmt.Errorf("invalid action type: %s", p.Type)
	}

	validRuntimes := map[string]bool{
		"awsLambda": true, "azureFunction": true, "googleCloudFunction": true,
	}
	if !validRuntimes[p.Runtime.Type] {
		return fmt.Errorf("unsupported runtime environment: %s", p.Runtime.Type)
	}

	if p.MemoryMB < 128 || p.MemoryMB > 1024 {
		return fmt.Errorf("memory allocation must be between 128 and 1024 MB, got %d", p.MemoryMB)
	}

	if p.TimeoutSeconds < 1 || p.TimeoutSeconds > 300 {
		return fmt.Errorf("execution timeout must be between 1 and 300 seconds, got %d", p.TimeoutSeconds)
	}

	if len(p.SecurityGroupIDs) == 0 {
		return fmt.Errorf("at least one security group ID is required for compute isolation")
	}

	for _, sg := range p.SecurityGroupIDs {
		if !strings.HasPrefix(sg, "sg-") {
			return fmt.Errorf("invalid security group format: %s", sg)
		}
	}

	if p.Runtime.Type == "awsLambda" && p.IAMRoleARN != "" {
		if !strings.HasPrefix(p.IAMRoleARN, "arn:aws:iam::") || !strings.Contains(p.IAMRoleARN, ":role/") {
			return fmt.Errorf("invalid IAM role ARN format")
		}
	}

	if p.Code.Type != "zip" || p.Code.URL == "" || p.Code.Entrypoint == "" {
		return fmt.Errorf("code reference must specify zip type, valid URL, and entrypoint")
	}

	return nil
}

type DeploymentResult struct {
	ActionID   string    `json:"id"`
	Status     string    `json:"status"`
	DeployTime time.Time `json:"deployTime"`
	Version    string    `json:"version"`
}

func DeployAction(ctx context.Context, baseURI string, token string, actionID string, payload DeployPayload) (*DeploymentResult, error) {
	jsonPayload, err := json.Marshal(payload)
	if err != nil {
		return nil, fmt.Errorf("failed to marshal payload: %w", err)
	}

	endpoint := fmt.Sprintf("%s/api/v2/integrations/actions/%s", baseURI, actionID)
	client := &http.Client{Timeout: 30 * time.Second}

	var lastErr error
	for attempt := 0; attempt < 3; attempt++ {
		req, err := http.NewRequestWithContext(ctx, http.MethodPut, endpoint, bytes.NewReader(jsonPayload))
		if err != nil {
			return nil, fmt.Errorf("failed to create deployment request: %w", err)
		}

		req.Header.Set("Authorization", "Bearer "+token)
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Accept", "application/json")

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

		body, _ := io.ReadAll(resp.Body)

		if resp.StatusCode == http.StatusTooManyRequests {
			waitTime := time.Duration(1<<attempt) * time.Second
			log.Printf("Rate limited (429). Retrying in %v...", waitTime)
			time.Sleep(waitTime)
			lastErr = fmt.Errorf("rate limited on attempt %d", attempt+1)
			continue
		}

		if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusAccepted {
			return nil, fmt.Errorf("deployment failed with status %d: %s", resp.StatusCode, string(body))
		}

		var result DeploymentResult
		if err := json.Unmarshal(body, &result); err != nil {
			return nil, fmt.Errorf("failed to parse deployment response: %w", err)
		}

		result.DeployTime = time.Now()
		return &result, nil
	}

	return nil, fmt.Errorf("deployment failed after retries: %w", lastErr)
}

type WebhookEvent struct {
	Event     string            `json:"event"`
	ActionID  string            `json:"actionId"`
	Status    string            `json:"status"`
	Timestamp time.Time         `json:"timestamp"`
	Metrics   map[string]float64 `json:"metrics,omitempty"`
}

func SendWebhook(ctx context.Context, webhookURL string, event WebhookEvent) error {
	if webhookURL == "" {
		return nil
	}

	jsonEvent, err := json.Marshal(event)
	if err != nil {
		return fmt.Errorf("failed to marshal webhook event: %w", err)
	}

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, webhookURL, bytes.NewReader(jsonEvent))
	if err != nil {
		return fmt.Errorf("failed to create webhook request: %w", err)
	}

	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-Webhook-Source", "genesys-deployer")

	client := &http.Client{Timeout: 15 * time.Second}
	resp, err := client.Do(req)
	if err != nil {
		return fmt.Errorf("webhook delivery failed: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
		return fmt.Errorf("webhook returned non-success status: %d", resp.StatusCode)
	}

	return nil
}

type AuditLog struct {
	Timestamp    time.Time `json:"timestamp"`
	ActionID     string    `json:"actionId"`
	EventType    string    `json:"eventType"`
	LatencyMs    float64   `json:"latencyMs"`
	StartupRate  float64   `json:"startupRatePerSec"`
	Status       string    `json:"status"`
	SecurityCtx  string    `json:"securityContext"`
	IAMRole      string    `json:"iamRole"`
}

func GenerateAuditLog(ctx context.Context, actionID string, payload DeployPayload, result *DeploymentResult, latencyMs float64, startupRate float64, status string) error {
	audit := AuditLog{
		Timestamp:   time.Now().UTC(),
		ActionID:    actionID,
		EventType:   "deployment",
		LatencyMs:   latencyMs,
		StartupRate: startupRate,
		Status:      status,
		SecurityCtx: strings.Join(payload.SecurityGroupIDs, ","),
		IAMRole:     payload.IAMRoleARN,
	}

	jsonLog, err := json.MarshalIndent(audit, "", "  ")
	if err != nil {
		return fmt.Errorf("failed to marshal audit log: %w", err)
	}

	_, err = fmt.Println(string(jsonLog))
	if err != nil {
		return fmt.Errorf("failed to write audit log: %w", err)
	}

	return nil
}

type DeployConfig struct {
	BaseURL      string
	WebhookURL   string
	ActionID     string
	Payload      DeployPayload
}

type DeployResult struct {
	Action        *DeploymentResult
	LatencyMs     float64
	StartupRate   float64
	WebhookStatus string
	AuditSuccess  bool
}

func DeployCustomFunction(ctx context.Context, cfg DeployConfig, token string) (*DeployResult, error) {
	if err := ValidatePayload(cfg.Payload); err != nil {
		return nil, fmt.Errorf("payload validation failed: %w", err)
	}

	startTime := time.Now()

	result, err := DeployAction(ctx, cfg.BaseURL, token, cfg.ActionID, cfg.Payload)
	if err != nil {
		return nil, fmt.Errorf("deployment execution failed: %w", err)
	}

	latencyMs := float64(time.Since(startTime).Microseconds()) / 1000.0
	startupRate := 1.0 / (latencyMs / 1000.0)

	webhookErr := SendWebhook(ctx, cfg.WebhookURL, WebhookEvent{
		Event:     "deployment_complete",
		ActionID:  cfg.ActionID,
		Status:    result.Status,
		Timestamp: time.Now().UTC(),
		Metrics:   map[string]float64{"latencyMs": latencyMs, "startupRate": startupRate},
	})

	auditErr := GenerateAuditLog(ctx, cfg.ActionID, cfg.Payload, result, latencyMs, startupRate, result.Status)

	return &DeployResult{
		Action:        result,
		LatencyMs:     latencyMs,
		StartupRate:   startupRate,
		WebhookStatus: map[bool]string{true: "delivered", false: "failed"}[webhookErr == nil],
		AuditSuccess:  auditErr == nil,
	}, nil
}

func main() {
	ctx := context.Background()

	cfg := OAuthConfig{
		ClientID:     os.Getenv("GENESYS_CLIENT_ID"),
		ClientSecret: os.Getenv("GENESYS_CLIENT_SECRET"),
		BaseURL:      os.Getenv("GENESYS_BASE_URL"),
	}

	if cfg.ClientID == "" || cfg.ClientSecret == "" || cfg.BaseURL == "" {
		log.Fatal("GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, and GENESYS_BASE_URL must be set")
	}

	cache := &TokenCache{}
	token, err := cache.GetToken(ctx, cfg)
	if err != nil {
		log.Fatalf("Authentication failed: %v", err)
	}

	b, _ := rand.Generate(16)
	actionID := hex.EncodeToString(b)

	payload := DeployPayload{
		Type: "customFunction",
		Runtime: RuntimeEnv{
			Type:           "awsLambda",
			RuntimeVersion: "nodejs18.x",
		},
		MemoryMB:       256,
		TimeoutSeconds: 30,
		Code: CodeRef{
			Type:       "zip",
			URL:        "https://storage.example.com/functions/v1/handler.zip",
			Entrypoint: "index.handler",
		},
		SecurityGroupIDs: []string{"sg-0a1b2c3d4e5f67890"},
		IAMRoleARN:       "arn:aws:iam::123456789012:role/GenesysDataActionRole",
		ResolveDependencies: true,
		EnvironmentVariables: map[string]string{
			"NODE_ENV": "production",
			"LOG_LEVEL": "info",
		},
	}

	deployCfg := DeployConfig{
		BaseURL:    cfg.BaseURL,
		WebhookURL: os.Getenv("CI_WEBHOOK_URL"),
		ActionID:   actionID,
		Payload:    payload,
	}

	result, err := DeployCustomFunction(ctx, deployCfg, token)
	if err != nil {
		log.Fatalf("Deployment pipeline failed: %v", err)
	}

	fmt.Printf("Deployment complete. Action: %s, Status: %s, Latency: %.2fms, Startup Rate: %.2f/s, Webhook: %s, Audit: %v\n",
		result.Action.ActionID, result.Action.Status, result.LatencyMs, result.StartupRate, result.WebhookStatus, result.AuditSuccess)
}

Common Errors & Debugging

Error: 400 Bad Request - Schema Validation Failure

• Cause: Memory allocation exceeds 1024 MB, timeout exceeds 300 seconds, or security group format is invalid.
• Fix: Verify payload constraints against Genesys Cloud compute engine limits. Run ValidatePayload locally before submission.
• Code Fix: Adjust MemoryMB to 512 and TimeoutSeconds to 60 in the payload struct.

Error: 403 Forbidden - IAM Role or Security Group Mismatch

• Cause: The IAM role ARN lacks lambda:InvokeFunction permissions, or the security group ID does not exist in the target VPC.
• Fix: Confirm IAM role trust policy allows apigateway.amazonaws.com and lambda.amazonaws.com. Verify security group exists in the Genesys Cloud integration configuration.
• Code Fix: Update IAMRoleARN to match an existing role with least-privilege permissions.

Error: 429 Too Many Requests - Rate Limit Cascade

• Cause: Exceeding 100 requests per minute on the /api/v2/integrations/actions endpoint.
• Fix: The implementation includes exponential backoff. Increase retry delay if concurrent deployments occur.
• Code Fix: Modify waitTime := time.Duration(1<<attempt) * time.Second to time.Duration(2<<attempt) * time.Second for heavier loads.

Error: 503 Service Unavailable - Compute Engine Provisioning Delay

• Cause: Genesys Cloud container orchestration is scaling or experiencing temporary unavailability.
• Fix: Retry with longer intervals. Monitor X-RateLimit-Reset headers if provided.
• Code Fix: Add a 5xx retry block in DeployAction with a maximum of 5 attempts and 5-second base delay.

Official References

• Genesys Cloud Data Actions API Documentation
• Genesys Cloud OAuth2 Authentication Guide
• Genesys Cloud Go SDK Reference
• AWS Lambda Execution Environment Limits