Executing Genesys Cloud Purge API Deletion Jobs via REST API with Go

What You Will Build

A production-ready Go module that constructs, validates, submits, and monitors asynchronous data purge jobs against Genesys Cloud CX. The module uses the POST /api/v2/purge endpoint to schedule bulk deletions, implements dependency validation to prevent orphaned records, handles rate limits with exponential backoff, synchronizes completion events via webhooks, and generates compliance audit logs. The implementation covers Go 1.21+ with standard library HTTP clients.

Prerequisites

• OAuth 2.0 Client Credentials grant type with scopes purge:write and purge:read
• Genesys Cloud CX API version v2
• Go runtime version 1.21 or higher
• Standard library packages: net/http, encoding/json, context, time, sync, crypto/rand, math, log, fmt

Authentication Setup

Genesys Cloud uses a standard OAuth 2.0 client credentials flow. The token expires after one hour and must be cached and refreshed before expiration. The following function handles token acquisition and basic caching.

package purgeexecutor

import (
	"context"
	"crypto/rand"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"net/http"
	"strings"
	"sync"
	"time"
)

type OAuthConfig struct {
	BaseURL      string
	ClientID     string
	ClientSecret string
}

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

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

func NewTokenCache() *TokenCache {
	return &TokenCache{}
}

func (c *TokenCache) Get() (string, bool) {
	c.mu.RLock()
	defer c.mu.RUnlock()
	if time.Until(c.expiresAt) < time.Minute {
		return "", false
	}
	return c.token, true
}

func (c *TokenCache) Set(token string, expiresAt time.Time) {
	c.mu.Lock()
	defer c.mu.Unlock()
	c.token = token
	c.expiresAt = expiresAt
}

func GetAuthToken(cfg OAuthConfig, cache *TokenCache) (string, error) {
	if tok, ok := cache.Get(); ok {
		return tok, nil
	}

	client := &http.Client{Timeout: 10 * time.Second}
	cred := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", cfg.ClientID, cfg.ClientSecret)))
	body := strings.NewReader("grant_type=client_credentials")
	req, err := http.NewRequestWithContext(context.Background(), http.MethodPost, cfg.BaseURL+"/login/oauth2/token", body)
	if err != nil {
		return "", fmt.Errorf("failed to create auth request: %w", err)
	}
	req.Header.Set("Authorization", fmt.Sprintf("Basic %s", cred))
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	req.Header.Set("Accept", "application/json")

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

	if resp.StatusCode != http.StatusOK {
		return "", fmt.Errorf("auth failed with status %d", resp.StatusCode)
	}

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

	cache.Set(tokenResp.AccessToken, time.Now().Add(time.Duration(tokenResp.ExpiresIn)*time.Second))
	return tokenResp.AccessToken, nil
}

Implementation

Step 1: Construct Deletion Job Payloads

The Genesys Cloud purge API accepts a structured JSON body defining the resource type, filters, retention overrides, and execution windows. The following struct matches the PurgeRequest schema. You must specify the resourceType and at least one filter condition.

type DateRange struct {
	Start string `json:"start"`
	End   string `json:"end"`
}

type Filters struct {
	DateRange  DateRange `json:"dateRange,omitempty"`
	MediaTypes []string  `json:"mediaTypes,omitempty"`
	WrapupCodes []string `json:"wrapupCodes,omitempty"`
}

type RetentionOverride struct {
	Days   int    `json:"days"`
	Reason string `json:"reason"`
}

type ExecutionWindow struct {
	Start string `json:"start"`
	End   string `json:"end"`
}

type PurgeRequest struct {
	ResourceType      string            `json:"resourceType"`
	PurgeReason       string            `json:"purgeReason"`
	Filters           Filters           `json:"filters"`
	RetentionOverride *RetentionOverride `json:"retentionOverride,omitempty"`
	ExecutionWindow   *ExecutionWindow   `json:"executionWindow,omitempty"`
}

func BuildPurgePayload(resourceType, purgeReason string, filters Filters, retentionDays int, window *ExecutionWindow) PurgeRequest {
	req := PurgeRequest{
		ResourceType: resourceType,
		PurgeReason:  purgeReason,
		Filters:      filters,
		ExecutionWindow: window,
	}
	if retentionDays > 0 {
		req.RetentionOverride = &RetentionOverride{
			Days:   retentionDays,
			Reason: "COMPLIANCE_OVERRIDE",
		}
	}
	return req
}

The required OAuth scope for submission is purge:write. The resourceType must match a supported Genesys Cloud entity such as conversation, user, or skill. The dateRange filter uses ISO 8601 timestamps.

Step 2: Validate Schemas Against Quotas and Dependency Matrices

Genesys Cloud enforces daily purge quotas and data dependency constraints. The following function validates the payload against a simulated dependency matrix and checks remaining quota before submission. This prevents cascading deletions and orphaned records.

type QuotaCheck struct {
	Remaining int `json:"quotaRemaining"`
	Limit     int `json:"quotaLimit"`
}

type DependencyMatrix struct {
	mu       sync.RWMutex
	relations map[string][]string // parent -> children
	softDeleted map[string]bool   // records marked for soft delete
}

func NewDependencyMatrix() *DependencyMatrix {
	return &DependencyMatrix{
		relations:   make(map[string][]string),
		softDeleted: make(map[string]bool),
	}
}

func (dm *DependencyMatrix) AddRelation(parent string, children []string) {
	dm.mu.Lock()
	defer dm.mu.Unlock()
	dm.relations[parent] = append(dm.relations[parent], children...)
}

func (dm *DependencyMatrix) MarkSoftDeleted(id string) {
	dm.mu.Lock()
	defer dm.mu.Unlock()
	dm.softDeleted[id] = true
}

func (dm *DependencyMatrix) ValidateReferentialIntegrity(targetType string) error {
	dm.mu.RLock()
	defer dm.mu.RUnlock()
	
	children, exists := dm.relations[targetType]
	if !exists || len(children) == 0 {
		return nil
	}
	
	for _, childType := range children {
		if _, isSoft := dm.softDeleted[childType]; isSoft {
			return fmt.Errorf("referential integrity violation: cannot purge %s while dependent %s records are in soft-delete state", targetType, childType)
		}
	}
	return nil
}

func ValidateJob(cfg OAuthConfig, token string, req PurgeRequest, dm *DependencyMatrix) error {
	if err := dm.ValidateReferentialIntegrity(req.ResourceType); err != nil {
		return fmt.Errorf("dependency validation failed: %w", err)
	}

	client := &http.Client{Timeout: 10 * time.Second}
	reqCheck, err := http.NewRequestWithContext(context.Background(), http.MethodGet, cfg.BaseURL+"/api/v2/purge/quota", nil)
	if err != nil {
		return fmt.Errorf("failed to create quota request: %w", err)
	}
	reqCheck.Header.Set("Authorization", "Bearer "+token)
	reqCheck.Header.Set("Accept", "application/json")

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

	if resp.StatusCode == http.StatusNotFound {
		return nil
	}
	if resp.StatusCode != http.StatusOK {
		return fmt.Errorf("quota check returned status %d", resp.StatusCode)
	}

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

	if quota.Remaining <= 0 {
		return fmt.Errorf("daily purge quota exhausted: %d/%d", quota.Remaining, quota.Limit)
	}
	return nil
}

The ValidateJob function performs foreign key traversal by checking the dependency matrix and verifies soft-delete states. It also queries the quota endpoint to ensure the daily limit is not exceeded.

Step 3: Submit Jobs with Asynchronous Orchestration and Retry Hooks

Purge jobs run asynchronously. The submission endpoint returns immediately with a job identifier. The following function handles submission with exponential backoff for 429 and 5xx responses.

type PurgeResponse struct {
	PurgeID          string `json:"purgeId"`
	Status           string `json:"status"`
	EstimatedDuration int    `json:"estimatedDuration"`
	QuotaRemaining   int    `json:"quotaRemaining"`
}

type JobMetrics struct {
	mu          sync.Mutex
	TotalJobs   int
	Successful  int
	Failures    int
	TotalDuration time.Duration
}

func (m *JobMetrics) Record(success bool, duration time.Duration) {
	m.mu.Lock()
	defer m.mu.Unlock()
	m.TotalJobs++
	if success {
		m.Successful++
	} else {
		m.Failures++
	}
	m.TotalDuration += duration
}

func (m *JobMetrics) SuccessRate() float64 {
	m.mu.Lock()
	defer m.mu.Unlock()
	if m.TotalJobs == 0 {
		return 0
	}
	return float64(m.Successful) / float64(m.TotalJobs)
}

func SubmitPurgeJob(cfg OAuthConfig, token string, req PurgeRequest, metrics *JobMetrics) (PurgeResponse, error) {
	payload, err := json.Marshal(req)
	if err != nil {
		return PurgeResponse{}, fmt.Errorf("failed to marshal purge request: %w", err)
	}

	client := &http.Client{Timeout: 30 * time.Second}
	maxRetries := 3
	baseDelay := 2 * time.Second

	for attempt := 0; attempt <= maxRetries; attempt++ {
		reqSubmit, err := http.NewRequestWithContext(context.Background(), http.MethodPost, cfg.BaseURL+"/api/v2/purge", strings.NewReader(string(payload)))
		if err != nil {
			return PurgeResponse{}, fmt.Errorf("failed to create submit request: %w", err)
		}
		reqSubmit.Header.Set("Authorization", "Bearer "+token)
		reqSubmit.Header.Set("Content-Type", "application/json")
		reqSubmit.Header.Set("Accept", "application/json")

		start := time.Now()
		resp, err := client.Do(reqSubmit)
		duration := time.Since(start)
		if err != nil {
			return PurgeResponse{}, fmt.Errorf("submit request failed: %w", err)
		}
		defer resp.Body.Close()

		if resp.StatusCode == http.StatusTooManyRequests {
			backoff := baseDelay * time.Duration(math.Pow(2, float64(attempt)))
			time.Sleep(backoff)
			continue
		}
		if resp.StatusCode >= 500 {
			backoff := baseDelay * time.Duration(math.Pow(2, float64(attempt)))
			time.Sleep(backoff)
			continue
		}
		if resp.StatusCode != http.StatusAccepted && resp.StatusCode != http.StatusOK {
			return PurgeResponse{}, fmt.Errorf("submit failed with status %d", resp.StatusCode)
		}

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

		metrics.Record(true, duration)
		return purgeResp, nil
	}

	metrics.Record(false, 0)
	return PurgeResponse{}, fmt.Errorf("max retries exceeded for purge submission")
}

The function implements automatic retry hooks for transient compute unavailability. It tracks execution duration and success rates in a thread-safe metrics struct.

Step 4: Poll Status, Synchronize Webhooks, and Generate Audit Logs

After submission, the job transitions through QUEUED, RUNNING, and COMPLETED states. The following function polls the status endpoint, triggers webhook callbacks upon completion, and generates audit logs for data governance compliance.

type PurgeStatusResponse struct {
	PurgeID  string `json:"purgeId"`
	Status   string `json:"status"`
	Records  int    `json:"recordsPurged"`
	Errors   []string `json:"errors,omitempty"`
}

type WebhookPayload struct {
	PurgeID      string `json:"purgeId"`
	Status       string `json:"status"`
	RecordsPurged int   `json:"recordsPurged"`
	Timestamp    string `json:"timestamp"`
}

type AuditLog struct {
	Action      string `json:"action"`
	PurgeID     string `json:"purgeId"`
	Reason      string `json:"reason"`
	Status      string `json:"status"`
	Records     int    `json:"records"`
	Timestamp   string `json:"timestamp"`
	Operator    string `json:"operator"`
}

func PollAndSync(cfg OAuthConfig, token string, purgeID string, webhookURL string, auditWriter func(AuditLog) error) error {
	client := &http.Client{Timeout: 15 * time.Second}
	pollInterval := 10 * time.Second

	for {
		reqStatus, err := http.NewRequestWithContext(context.Background(), http.MethodGet, fmt.Sprintf("%s/api/v2/purge/%s", cfg.BaseURL, purgeID), nil)
		if err != nil {
			return fmt.Errorf("failed to create status request: %w", err)
		}
		reqStatus.Header.Set("Authorization", "Bearer "+token)
		reqStatus.Header.Set("Accept", "application/json")

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

		if resp.StatusCode != http.StatusOK {
			return fmt.Errorf("status poll returned %d", resp.StatusCode)
		}

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

		if statusResp.Status == "COMPLETED" || statusResp.Status == "FAILED" {
			webhook := WebhookPayload{
				PurgeID:       purgeID,
				Status:        statusResp.Status,
				RecordsPurged: statusResp.Records,
				Timestamp:     time.Now().UTC().Format(time.RFC3339),
			}

			if webhookURL != "" {
				if err := sendWebhook(webhookURL, webhook); err != nil {
					log.Printf("webhook sync failed: %v", err)
				}
			}

			audit := AuditLog{
				Action:    "PURGE_JOB_COMPLETED",
				PurgeID:   purgeID,
				Reason:    "RETENTION_POLICY",
				Status:    statusResp.Status,
				Records:   statusResp.Records,
				Timestamp: time.Now().UTC().Format(time.RFC3339),
				Operator:  "SYSTEM_API",
			}
			if err := auditWriter(audit); err != nil {
				log.Printf("audit log write failed: %v", err)
			}
			return nil
		}

		time.Sleep(pollInterval)
	}
}

func sendWebhook(url string, payload WebhookPayload) error {
	body, err := json.Marshal(payload)
	if err != nil {
		return fmt.Errorf("failed to marshal webhook payload: %w", err)
	}
	req, err := http.NewRequestWithContext(context.Background(), http.MethodPost, url, strings.NewReader(string(body)))
	if err != nil {
		return fmt.Errorf("failed to create webhook request: %w", err)
	}
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-Genesys-Purge-Event", "true")

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

	if resp.StatusCode >= 400 {
		return fmt.Errorf("webhook returned status %d", resp.StatusCode)
	}
	return nil
}

The polling loop verifies job status at fixed intervals. Upon completion, it synchronizes with external data lifecycle platforms via webhook callbacks and writes structured audit logs for compliance alignment.

Complete Working Example

The following script combines all components into a single executable module. Replace the placeholder credentials and base URL before execution.

package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"time"

	purgeexecutor "github.com/example/genesys-purge-executor"
)

func main() {
	cfg := purgeexecutor.OAuthConfig{
		BaseURL:      "https://your-org.mygen.com",
		ClientID:     "YOUR_CLIENT_ID",
		ClientSecret: "YOUR_CLIENT_SECRET",
	}
	cache := purgeexecutor.NewTokenCache()
	metrics := &purgeexecutor.JobMetrics{}
	dm := purgeexecutor.NewDependencyMatrix()
	dm.AddRelation("conversation", []string{"interaction", "media"})
	dm.MarkSoftDeleted("interaction_123")

	token, err := purgeexecutor.GetAuthToken(cfg, cache)
	if err != nil {
		log.Fatalf("authentication failed: %v", err)
	}

	window := &purgeexecutor.ExecutionWindow{
		Start: time.Now().UTC().Format(time.RFC3339),
		End:   time.Now().Add(2 * time.Hour).UTC().Format(time.RFC3339),
	}

	req := purgeexecutor.BuildPurgePayload(
		"conversation",
		"RETENTION",
		purgeexecutor.Filters{
			DateRange: purgeexecutor.DateRange{
				Start: "2023-01-01T00:00:00.000Z",
				End:   "2023-01-31T23:59:59.999Z",
			},
			MediaTypes: []string{"voice", "chat"},
		},
		30,
		window,
	)

	if err := purgeexecutor.ValidateJob(cfg, token, req, dm); err != nil {
		log.Fatalf("validation failed: %v", err)
	}

	resp, err := purgeexecutor.SubmitPurgeJob(cfg, token, req, metrics)
	if err != nil {
		log.Fatalf("submission failed: %v", err)
	}
	fmt.Printf("Purge job submitted: %s (Status: %s)\n", resp.PurgeID, resp.Status)

	auditWriter := func(audit purgeexecutor.AuditLog) error {
		f, err := os.OpenFile("purge_audit.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
		if err != nil {
			return err
		}
		defer f.Close()
		writer := bufio.NewWriter(f)
		data, _ := json.Marshal(audit)
		writer.WriteString(string(data) + "\n")
		return writer.Flush()
	}

	if err := purgeexecutor.PollAndSync(cfg, token, resp.PurgeID, "https://your-lifecycle-platform.com/webhook", auditWriter); err != nil {
		log.Fatalf("polling failed: %v", err)
	}

	fmt.Printf("Execution complete. Success rate: %.2f%%, Avg duration: %v\n", 
		metrics.SuccessRate()*100, metrics.TotalDuration/time.Duration(metrics.TotalJobs))
}

Common Errors & Debugging

Error: 401 Unauthorized

• Cause: The OAuth token expired or the client credentials are invalid.
• Fix: Verify the client_id and client_secret. Ensure the token cache refreshes before expiration. The GetAuthToken function automatically handles refresh, but network timeouts during the token request will propagate this error.

Error: 403 Forbidden

• Cause: The OAuth token lacks the purge:write or purge:read scope, or the client application is not authorized for purge operations in the Genesys Cloud admin console.
• Fix: Navigate to the API Client configuration and add the required scopes. Ensure the client has the Purge API permission enabled.

Error: 429 Too Many Requests

• Cause: Genesys Cloud rate limiting triggered by rapid job submissions or status polling.
• Fix: The SubmitPurgeJob function implements exponential backoff. If polling triggers rate limits, increase the pollInterval in PollAndSync. Implement a token bucket algorithm for high-throughput environments.

Error: 400 Bad Request

• Cause: Invalid JSON payload, unsupported resourceType, or malformed date ranges.
• Fix: Validate the PurgeRequest struct against the Genesys Cloud schema. Ensure dateRange timestamps are in UTC and the start precedes end. The ValidateJob function catches dependency violations, but payload schema errors must be caught during construction.

Error: Dependency Validation Failure

• Cause: The dependency matrix detected soft-deleted child records that would become orphaned if the parent resource is purged.
• Fix: Resolve the soft-delete state on dependent records before submitting the purge job. Update the DependencyMatrix configuration to reflect current data relationships.

Official References

• Genesys Cloud Purge API Documentation
• Genesys Cloud OAuth 2.0 Authentication
• Go net/http Package Reference