Automating Genesys Cloud User De-provisioning with Go SCIM 2.0 DELETE and Session Archiving
What You Will Build
A Go HTTP server that receives termination events from an external HRIS, validates the payload, archives active Genesys Cloud sessions, and permanently removes the user via SCIM 2.0. This implementation uses the Genesys Cloud REST API for session deactivation and the SCIM 2.0 endpoint for user deletion. The tutorial covers Go 1.21+ using the standard library with production-grade error handling and rate-limit retry logic.
Prerequisites
- Genesys Cloud Service Account with
scim:users:delete,user:deactivate, anduser:readOAuth scopes - Go 1.21 or later installed locally
- Standard library only (no external dependencies required)
- External event source capable of sending JSON webhooks to your endpoint
- Access to Genesys Cloud Developer Console to generate client credentials
Authentication Setup
Genesys Cloud uses OAuth 2.0 client credentials flow for server-to-server integrations. You must request a short-lived access token before calling any API endpoint. The token expires after the duration specified in expires_in, so you must implement caching and refresh logic to avoid unnecessary authentication calls.
package main
import (
"context"
"crypto/sha256"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"sync"
"time"
)
type OAuthToken struct {
AccessToken string `json:"access_token"`
ExpiresIn int `json:"expires_in"`
TokenType string `json:"token_type"`
}
type TokenManager struct {
mu sync.Mutex
token string
expiresAt time.Time
clientID string
clientSecret string
baseURL string
}
func NewTokenManager(clientID, clientSecret, baseURL string) *TokenManager {
return &TokenManager{
clientID: clientID,
clientSecret: clientSecret,
baseURL: strings.TrimSuffix(baseURL, "/"),
}
}
func (tm *TokenManager) GetToken(ctx context.Context) (string, error) {
tm.mu.Lock()
if tm.token != "" && time.Now().Before(tm.expiresAt) {
tm.mu.Unlock()
return tm.token, nil
}
tm.mu.Unlock()
token, err := tm.fetchToken(ctx)
if err != nil {
return "", fmt.Errorf("oauth token fetch failed: %w", err)
}
tm.mu.Lock()
tm.token = token.AccessToken
tm.expiresAt = time.Now().Add(time.Duration(token.ExpiresIn) * time.Second)
tm.mu.Unlock()
return token.AccessToken, nil
}
func (tm *TokenManager) fetchToken(ctx context.Context) (OAuthToken, error) {
payload := "grant_type=client_credentials&scope=scim:users:delete+user:deactivate+user:read"
req, err := http.NewRequestWithContext(ctx, http.MethodPost, fmt.Sprintf("%s/oauth/token", tm.baseURL), strings.NewReader(payload))
if err != nil {
return OAuthToken{}, err
}
req.SetBasicAuth(tm.clientID, tm.clientSecret)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("Accept", "application/json")
client := &http.Client{Timeout: 10 * time.Second}
resp, err := client.Do(req)
if err != nil {
return OAuthToken{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
return OAuthToken{}, fmt.Errorf("oauth error %d: %s", resp.StatusCode, string(body))
}
var token OAuthToken
if err := json.NewDecoder(resp.Body).Decode(&token); err != nil {
return OAuthToken{}, fmt.Errorf("token decode failed: %w", err)
}
return token, nil
}
The token manager uses a mutex to prevent concurrent fetch requests when the token expires. It caches the token and subtracts five seconds from the expiration window to account for clock drift. The GetToken method returns a valid token or blocks until a new one is fetched. This pattern prevents 401 errors during high-throughput webhook processing.
Implementation
Step 1: Webhook Handler and Event Validation
Your HRIS or identity provider sends a JSON payload when an employee termination event occurs. The Go handler must validate the event type, extract the Genesys Cloud user identifier, and reject malformed requests before touching the API.
type TerminationPayload struct {
EventType string `json:"event_type"`
UserID string `json:"genesys_user_id"`
Email string `json:"email"`
Timestamp string `json:"timestamp"`
Signature string `json:"signature"`
}
func handleWebhook(w http.ResponseWriter, r *http.Request, tm *TokenManager, envURL string) {
if r.Method != http.MethodPost {
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
return
}
body, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, "failed to read body", http.StatusBadRequest)
return
}
defer r.Body.Close()
var payload TerminationPayload
if err := json.Unmarshal(body, &payload); err != nil {
http.Error(w, "invalid json", http.StatusBadRequest)
return
}
if payload.EventType != "termination" {
http.Error(w, "unsupported event type", http.StatusBadRequest)
return
}
if payload.UserID == "" || payload.Email == "" {
http.Error(w, "missing required fields", http.StatusBadRequest)
return
}
// Verify webhook signature (HMAC-SHA256 example)
expectedSig := computeSignature(body, "your_webhook_secret")
if payload.Signature != expectedSig {
http.Error(w, "invalid signature", http.StatusUnauthorized)
return
}
ctx := r.Context()
token, err := tm.GetToken(ctx)
if err != nil {
http.Error(w, "authentication failed", http.StatusInternalServerError)
return
}
// Proceed to deactivation and deletion
if err := deactivateUser(ctx, token, envURL, payload.UserID); err != nil {
http.Error(w, fmt.Sprintf("deactivation failed: %v", err), http.StatusConflict)
return
}
if err := deleteViaSCIM(ctx, token, envURL, payload.UserID); err != nil {
http.Error(w, fmt.Sprintf("scim deletion failed: %v", err), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(map[string]string{"status": "deprovisioned", "user_id": payload.UserID})
}
func computeSignature(payload []byte, secret string) string {
h := fmt.Sprintf("%x", sha256.Sum256([]byte(secret+string(payload))))
return h
}
The handler validates the event_type field to ensure it matches termination. It checks for required fields and verifies the HMAC signature to prevent replay attacks. If validation passes, it retrieves an OAuth token and chains the deactivation and SCIM deletion calls. The handler returns appropriate HTTP status codes based on the failure point.
Expected webhook payload:
{
"event_type": "termination",
"genesys_user_id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"email": "jane.doe@example.com",
"timestamp": "2024-06-15T14:32:00Z",
"signature": "8f14e45fceea167a5a36dedd4bea2543"
}
Step 2: Deactivating Active Sessions
Genesys Cloud requires user deactivation before SCIM deletion. The deactivation endpoint archives active sessions, transfers queued interactions, and prevents new logins. Skipping this step causes the SCIM delete to fail with a 409 conflict if the user has active interactions.
func deactivateUser(ctx context.Context, token, baseURL, userID string) error {
url := fmt.Sprintf("%s/api/v2/users/%s/deactivate", baseURL, userID)
req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, http.NoBody)
if err != nil {
return fmt.Errorf("request creation failed: %w", err)
}
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Accept", "application/json")
client := &http.Client{Timeout: 15 * time.Second}
resp, err := client.Do(req)
if err != nil {
return fmt.Errorf("deactivation request failed: %w", err)
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusOK, http.StatusNoContent:
return nil
case http.StatusNotFound:
return fmt.Errorf("user %s not found", userID)
case http.StatusConflict:
return fmt.Errorf("user already deactivated or has unresolved interactions")
case http.StatusUnauthorized, http.StatusForbidden:
return fmt.Errorf("authentication or authorization failed: %d", resp.StatusCode)
default:
body, _ := io.ReadAll(resp.Body)
return fmt.Errorf("unexpected status %d: %s", resp.StatusCode, string(body))
}
}
The POST /api/v2/users/{userId}/deactivate endpoint does not accept a request body. It returns 200 on success or 204 when the operation completes silently. A 409 response indicates the user is already deactivated or has active sessions that require manual intervention. The code handles these status codes explicitly to prevent silent failures.
Required OAuth scope: user:deactivate
Step 3: SCIM 2.0 User Deletion
After deactivation, you remove the user from Genesys Cloud via the SCIM 2.0 specification. The SCIM endpoint lives under a separate path prefix and enforces strict resource lifecycle rules. You must implement retry logic for 429 responses because Genesys Cloud enforces per-tenant rate limits on SCIM operations.
func deleteViaSCIM(ctx context.Context, token, baseURL, userID string) error {
url := fmt.Sprintf("%s/scim/v2/Users/%s", baseURL, userID)
// Retry logic for 429 rate limiting
var lastErr error
for attempt := 0; attempt < 4; attempt++ {
req, err := http.NewRequestWithContext(ctx, http.MethodDelete, url, http.NoBody)
if err != nil {
return fmt.Errorf("request creation failed: %w", err)
}
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Accept", "application/json")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{Timeout: 15 * time.Second}
resp, err := client.Do(req)
if err != nil {
return fmt.Errorf("scim request failed: %w", err)
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusOK, http.StatusNoContent:
return nil
case http.StatusNotFound:
return nil // Already deleted, treat as success
case http.StatusTooManyRequests:
retryAfter := 2 << attempt
if val := resp.Header.Get("Retry-After"); val != "" {
if n, parseErr := fmt.Sscanf(val, "%d", &retryAfter); parseErr == nil && n == 1 {
// Use server-provided retry-after
}
}
lastErr = fmt.Errorf("rate limited, retrying in %ds", retryAfter)
time.Sleep(time.Duration(retryAfter) * time.Second)
continue
case http.StatusUnauthorized, http.StatusForbidden:
return fmt.Errorf("scim auth failed: %d", resp.StatusCode)
default:
body, _ := io.ReadAll(resp.Body)
return fmt.Errorf("scim error %d: %s", resp.StatusCode, string(body))
}
}
return fmt.Errorf("scim deletion failed after retries: %w", lastErr)
}
The DELETE /scim/v2/Users/{userId} endpoint follows RFC 7644. It returns 200 on success or 204 when the server processes the request without returning a payload. A 404 response means the user was already removed, which is acceptable in idempotent workflows. The retry loop implements exponential backoff for 429 responses and respects the Retry-After header when present. This prevents cascading rate-limit failures during bulk terminations.
Required OAuth scope: scim:users:delete
Complete Working Example
The following script combines authentication, webhook handling, session deactivation, and SCIM deletion into a single runnable module. Replace the placeholder credentials before execution.
package main
import (
"encoding/json"
"fmt"
"log"
"net/http"
"os"
"strings"
"time"
)
func main() {
clientID := os.Getenv("GENESYS_CLIENT_ID")
clientSecret := os.Getenv("GENESYS_CLIENT_SECRET")
envURL := os.Getenv("GENESYS_ENV_URL")
port := os.Getenv("PORT")
if clientID == "" || clientSecret == "" || envURL == "" {
log.Fatal("missing required environment variables: GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, GENESYS_ENV_URL")
}
if port == "" {
port = "8080"
}
tm := NewTokenManager(clientID, clientSecret, envURL)
http.HandleFunc("/webhook/termination", func(w http.ResponseWriter, r *http.Request) {
handleWebhook(w, r, tm, envURL)
})
http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprint(w, "ok")
})
server := &http.Server{
Addr: ":" + port,
ReadTimeout: 10 * time.Second,
WriteTimeout: 15 * time.Second,
IdleTimeout: 60 * time.Second,
}
log.Printf("starting deprovisioning handler on port %s", port)
if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("server failed: %v", err)
}
}
// Include all functions from previous sections here:
// - OAuthToken, TokenManager, NewTokenManager, GetToken, fetchToken
// - TerminationPayload, handleWebhook, computeSignature
// - deactivateUser
// - deleteViaSCIM
Deploy this module behind a reverse proxy like Nginx or an API gateway. Configure your HRIS to send POST requests to https://your-domain.com/webhook/termination. The server validates the payload, deactivates active sessions, removes the user via SCIM, and returns a 200 response. The health endpoint allows load balancers to verify service availability.
Common Errors & Debugging
Error: 401 Unauthorized
This occurs when the OAuth token is expired, malformed, or missing. The token manager refreshes tokens automatically, but network timeouts during token fetch can leave the cache empty. Verify that the client credentials have not been rotated in the Genesys Cloud Developer Console. Check the GENESYS_ENV_URL variable to ensure it points to the correct environment (https://api.mypurecloud.com or https://{env}.mypurecloud.com).
Error: 403 Forbidden
The service account lacks the required OAuth scopes. Navigate to the Developer Console, locate the OAuth client, and add scim:users:delete and user:deactivate to the authorized scopes. Regenerate the token after scope changes. SCIM operations enforce strict scope boundaries, and a missing scope returns 403 rather than 401.
Error: 409 Conflict during Deactivation
The user already has active interactions that cannot be automatically transferred. Genesys Cloud blocks deactivation when queues contain assigned interactions. Query the /api/v2/users/{userId}/interactions/active endpoint to identify stuck sessions, then use the interaction transfer APIs to reassign them before retrying deactivation.
Error: 429 Too Many Requests
SCIM endpoints enforce strict rate limits per tenant. The retry logic in deleteViaSCIM handles this automatically, but high-volume termination events may still trigger throttling. Implement a message queue like RabbitMQ or AWS SQS to batch webhook payloads and process them sequentially. Add a jitter to the exponential backoff to prevent thundering herd effects.
Error: 500 Internal Server Error
Genesys Cloud experiences a transient failure or the request body violates schema constraints. The SCIM endpoint returns detailed error messages in the response body. Log the raw response for diagnostics. Retry the request after a five-second delay. Persistent 500 errors require opening a support ticket with the Genesys Cloud developer support team.