Retrieving Genesys Cloud Conversation Sentiment Scores with Go
What You Will Build
- A Go service that queries Genesys Cloud conversation analytics for sentiment scores, normalizes them to internal quality benchmarks, and aggregates polarity trends.
- The implementation uses the
POST /api/v2/analytics/conversations/details/queryendpoint with token-based pagination, retry logic, and structured audit logging. - The code is written in Go and exposes a clean analyzer interface for CX reporting integration.
Prerequisites
- OAuth 2.0 Client Credentials grant with the scope
analytics:conversations:read - Genesys Cloud API version
v2 - Go 1.21 or later
- Standard library only (
net/http,encoding/json,time,sync,log,context) - A configured Genesys Cloud environment with conversation sentiment analysis enabled
Authentication Setup
Genesys Cloud uses standard OAuth 2.0 client credentials flow. You must cache the access token and handle expiration before issuing analytics queries. The following Go function handles token acquisition and refresh logic.
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"sync"
"time"
)
type OAuthConfig struct {
Host string
ClientID string
Secret string
}
type TokenResponse struct {
AccessToken string `json:"access_token"`
ExpiresIn int `json:"expires_in"`
TokenType string `json:"token_type"`
}
var (
currentToken string
tokenExpiry time.Time
tokenMu sync.Mutex
)
func FetchOAuthToken(cfg OAuthConfig) (string, error) {
tokenMu.Lock()
defer tokenMu.Unlock()
if time.Now().Before(tokenExpiry.Add(-5 * time.Minute)) {
return currentToken, nil
}
payload := fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", cfg.ClientID, cfg.Secret)
req, err := http.NewRequest("POST", fmt.Sprintf("https://%s/oauth/token", cfg.Host), bytes.NewBufferString(payload))
if err != nil {
return "", fmt.Errorf("failed to create oauth request: %w", err)
}
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 "", fmt.Errorf("oauth request failed: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
return "", fmt.Errorf("oauth error %d: %s", resp.StatusCode, string(body))
}
var tr TokenResponse
if err := json.NewDecoder(resp.Body).Decode(&tr); err != nil {
return "", fmt.Errorf("failed to decode oauth response: %w", err)
}
currentToken = tr.AccessToken
tokenExpiry = time.Now().Add(time.Duration(tr.ExpiresIn) * time.Second)
return currentToken, nil
}
Required OAuth scope: analytics:conversations:read
Implementation
Step 1: Construct Query Payloads and Validate Constraints
Genesys Cloud enforces data retention windows and sentiment model availability per region. You must validate dateFrom and dateTo against your organization retention policy before sending the request. The analytics query payload requires explicit metric selection and filtering.
type AnalyticsQuery struct {
DateFrom string `json:"dateFrom"`
DateTo string `json:"dateTo"`
Size int `json:"size"`
NextPageToken string `json:"nextPageToken,omitempty"`
Select []string `json:"select"`
Where []string `json:"where,omitempty"`
}
type SentimentEntity struct {
InteractionID string `json:"interactionId"`
Date string `json:"date"`
Sentiment SentimentData `json:"sentiment"`
}
type SentimentData struct {
Score float64 `json:"score"`
Polarity string `json:"polarity"`
}
func ValidateAndBuildQuery(interactionIDs []string, start, end time.Time, retentionDays int) (AnalyticsQuery, error) {
// Validate retention constraint
minDate := time.Now().AddDate(0, 0, -retentionDays)
if start.Before(minDate) {
return AnalyticsQuery{}, fmt.Errorf("dateFrom %s exceeds retention policy of %d days", start.Format(time.RFC3339), retentionDays)
}
if end.Before(start) {
return AnalyticsQuery{}, fmt.Errorf("dateTo must be after dateFrom")
}
whereClause := ""
if len(interactionIDs) > 0 {
quotedIDs := make([]string, len(interactionIDs))
for i, id := range interactionIDs {
quotedIDs[i] = fmt.Sprintf("'%s'", id)
}
whereClause = fmt.Sprintf("interaction.id IN [%s]", joinStrings(quotedIDs, ", "))
}
return AnalyticsQuery{
DateFrom: start.Format(time.RFC3339),
DateTo: end.Format(time.RFC3339),
Size: 250,
Select: []string{"sentiment.score", "sentiment.polarity", "interaction.id", "date"},
Where: []string{whereClause},
}, nil
}
func joinStrings(s []string, sep string) string {
var b bytes.Buffer
for i, v := range s {
if i > 0 {
b.WriteString(sep)
}
b.WriteString(v)
}
return b.String()
}
Expected request body:
{
"dateFrom": "2024-06-01T00:00:00Z",
"dateTo": "2024-06-30T23:59:59Z",
"size": 250,
"select": ["sentiment.score", "sentiment.polarity", "interaction.id", "date"],
"where": ["interaction.id IN ['1a2b3c4d-5e6f-7g8h-9i0j-1k2l3m4n5o6p']"]
}
Step 2: Execute Query and Handle Token-Based Pagination
Genesys Cloud returns a nextPageToken when results exceed the size limit. You must loop until the token is empty. The implementation includes exponential backoff retry logic for 429 Too Many Requests responses.
type AnalyticsResponse struct {
Entities []SentimentEntity `json:"entities"`
NextPageToken string `json:"nextPageToken"`
Total int `json:"total"`
}
func QuerySentimentWithPagination(host, token string, query AnalyticsQuery) ([]SentimentEntity, error) {
var allEntities []SentimentEntity
currentQuery := query
maxRetries := 5
for {
jsonBody, err := json.Marshal(currentQuery)
if err != nil {
return nil, fmt.Errorf("failed to marshal query: %w", err)
}
req, err := http.NewRequest("POST", fmt.Sprintf("https://%s/api/v2/analytics/conversations/details/query", host), bytes.NewReader(jsonBody))
if err != nil {
return nil, fmt.Errorf("failed to create analytics request: %w", err)
}
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
client := &http.Client{Timeout: 30 * time.Second}
resp, err := client.Do(req)
if err != nil {
return nil, fmt.Errorf("analytics request failed: %w", err)
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusOK:
var result AnalyticsResponse
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
return nil, fmt.Errorf("failed to decode analytics response: %w", err)
}
allEntities = append(allEntities, result.Entities...)
if result.NextPageToken == "" {
return allEntities, nil
}
currentQuery.NextPageToken = result.NextPageToken
case http.StatusTooManyRequests:
if maxRetries <= 0 {
return nil, fmt.Errorf("exceeded max retries for 429 rate limit")
}
backoff := time.Duration(1<<uint(maxRetries-1)) * time.Second
time.Sleep(backoff)
maxRetries--
case http.StatusUnauthorized, http.StatusForbidden:
return nil, fmt.Errorf("authentication/authorization failed: %d", resp.StatusCode)
default:
body, _ := io.ReadAll(resp.Body)
return nil, fmt.Errorf("analytics API error %d: %s", resp.StatusCode, string(body))
}
}
}
Step 3: Normalize Scores and Aggregate Polarity Trends
Genesys Cloud returns sentiment scores in the range -1.0 to 1.0. Internal quality benchmarks typically use a 0 to 100 scale. You must apply a linear transformation and track distribution shifts for coaching synchronization.
type SentimentTrend struct {
PositiveCount int `json:"positive_count"`
NeutralCount int `json:"neutral_count"`
NegativeCount int `json:"negative_count"`
AvgScore float64 `json:"avg_score"`
Shift string `json:"polarity_shift"`
}
func NormalizeScore(rawScore float64) float64 {
// Map -1.0 to 1.0 -> 0.0 to 100.0
return ((rawScore + 1.0) / 2.0) * 100.0
}
func AggregateTrends(entities []SentimentEntity) SentimentTrend {
var trend SentimentTrend
var totalScore float64
for _, e := range entities {
switch e.Sentiment.Polarity {
case "positive":
trend.PositiveCount++
case "neutral":
trend.NeutralCount++
case "negative":
trend.NegativeCount++
}
totalScore += e.Sentiment.Score
}
if len(entities) > 0 {
trend.AvgScore = totalScore / float64(len(entities))
}
// Determine shift based on distribution
if trend.PositiveCount > trend.NegativeCount+5 {
trend.Shift = "improving"
} else if trend.NegativeCount > trend.PositiveCount+5 {
trend.Shift = "declining"
} else {
trend.Shift = "stable"
}
return trend
}
Step 4: Webhook Synchronization and Audit Logging
External coaching platforms require real-time synchronization. You will expose an HTTP endpoint that accepts webhook payloads, writes structured audit logs for governance, and pushes normalized insights to the target system.
type AuditLog struct {
Timestamp string `json:"timestamp"`
Action string `json:"action"`
Interaction string `json:"interaction_id"`
RawScore float64 `json:"raw_score"`
Normalized float64 `json:"normalized_score"`
Polarity string `json:"polarity"`
}
func WriteAuditLog(logFile string, log AuditLog) error {
f, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return err
}
defer f.Close()
log.Timestamp = time.Now().UTC().Format(time.RFC3339)
data, err := json.Marshal(log)
if err != nil {
return err
}
_, err = f.Write(append(data, '\n'))
return err
}
type WebhookPayload struct {
InteractionID string `json:"interactionId"`
Sentiment SentimentData `json:"sentiment"`
}
func HandleWebhook(w http.ResponseWriter, r *http.Request, coachEndpoint, logFile string) {
if r.Method != http.MethodPost {
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
return
}
var payload WebhookPayload
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
normalized := NormalizeScore(payload.Sentiment.Score)
// Audit logging for data governance
audit := AuditLog{
Action: "sentiment_sync",
Interaction: payload.InteractionID,
RawScore: payload.Sentiment.Score,
Normalized: normalized,
Polarity: payload.Sentiment.Polarity,
}
if err := WriteAuditLog(logFile, audit); err != nil {
log.Printf("audit write failed: %v", err)
}
// Synchronize with external coaching platform
coachPayload := map[string]interface{}{
"agent_interaction": payload.InteractionID,
"quality_score": normalized,
"polarity": payload.Sentiment.Polarity,
"action_required": normalized < 40.0,
"timestamp": time.Now().UTC().Format(time.RFC3339),
}
coachJSON, _ := json.Marshal(coachPayload)
req, _ := http.NewRequest("POST", coachEndpoint, bytes.NewReader(coachJSON))
req.Header.Set("Content-Type", "application/json")
http.DefaultClient.Do(req)
w.WriteHeader(http.StatusOK)
w.Write([]byte("processed"))
}
Complete Working Example
The following Go module combines authentication, pagination, normalization, webhook handling, and audit logging into a single runnable service. Replace placeholder credentials before execution.
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"os"
"sync"
"time"
)
// --- Models ---
type OAuthConfig struct {
Host string
ClientID string
Secret string
}
type TokenResponse struct {
AccessToken string `json:"access_token"`
ExpiresIn int `json:"expires_in"`
}
type AnalyticsQuery struct {
DateFrom string `json:"dateFrom"`
DateTo string `json:"dateTo"`
Size int `json:"size"`
NextPageToken string `json:"nextPageToken,omitempty"`
Select []string `json:"select"`
Where []string `json:"where,omitempty"`
}
type SentimentEntity struct {
InteractionID string `json:"interactionId"`
Date string `json:"date"`
Sentiment SentimentData `json:"sentiment"`
}
type SentimentData struct {
Score float64 `json:"score"`
Polarity string `json:"polarity"`
}
type AnalyticsResponse struct {
Entities []SentimentEntity `json:"entities"`
NextPageToken string `json:"nextPageToken"`
}
type AuditLog struct {
Timestamp string `json:"timestamp"`
Action string `json:"action"`
Interaction string `json:"interaction_id"`
RawScore float64 `json:"raw_score"`
Normalized float64 `json:"normalized_score"`
Polarity string `json:"polarity"`
}
type SentimentTrend struct {
PositiveCount int `json:"positive_count"`
NeutralCount int `json:"neutral_count"`
NegativeCount int `json:"negative_count"`
AvgScore float64 `json:"avg_score"`
Shift string `json:"polarity_shift"`
}
type WebhookPayload struct {
InteractionID string `json:"interactionId"`
Sentiment SentimentData `json:"sentiment"`
}
// --- State ---
var (
currentToken string
tokenExpiry time.Time
tokenMu sync.Mutex
)
// --- Auth ---
func FetchOAuthToken(cfg OAuthConfig) (string, error) {
tokenMu.Lock()
defer tokenMu.Unlock()
if time.Now().Before(tokenExpiry.Add(-5 * time.Minute)) {
return currentToken, nil
}
payload := fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", cfg.ClientID, cfg.Secret)
req, err := http.NewRequest("POST", fmt.Sprintf("https://%s/oauth/token", cfg.Host), bytes.NewBufferString(payload))
if err != nil {
return "", fmt.Errorf("oauth request creation failed: %w", err)
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("Accept", "application/json")
resp, err := (&http.Client{Timeout: 10 * time.Second}).Do(req)
if err != nil {
return "", fmt.Errorf("oauth request failed: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
return "", fmt.Errorf("oauth error %d: %s", resp.StatusCode, string(body))
}
var tr TokenResponse
if err := json.NewDecoder(resp.Body).Decode(&tr); err != nil {
return "", fmt.Errorf("oauth decode failed: %w", err)
}
currentToken = tr.AccessToken
tokenExpiry = time.Now().Add(time.Duration(tr.ExpiresIn) * time.Second)
return currentToken, nil
}
// --- Query & Pagination ---
func QuerySentimentWithPagination(host, token string, query AnalyticsQuery) ([]SentimentEntity, error) {
var allEntities []SentimentEntity
currentQuery := query
maxRetries := 5
for {
jsonBody, _ := json.Marshal(currentQuery)
req, err := http.NewRequest("POST", fmt.Sprintf("https://%s/api/v2/analytics/conversations/details/query", host), bytes.NewReader(jsonBody))
if err != nil {
return nil, fmt.Errorf("request creation failed: %w", err)
}
req.Header.Set("Authorization", "Bearer "+token)
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
resp, err := (&http.Client{Timeout: 30 * time.Second}).Do(req)
if err != nil {
return nil, fmt.Errorf("request failed: %w", err)
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusOK:
var result AnalyticsResponse
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
return nil, fmt.Errorf("decode failed: %w", err)
}
allEntities = append(allEntities, result.Entities...)
if result.NextPageToken == "" {
return allEntities, nil
}
currentQuery.NextPageToken = result.NextPageToken
case http.StatusTooManyRequests:
if maxRetries <= 0 {
return nil, fmt.Errorf("429 rate limit exceeded")
}
time.Sleep(time.Duration(1<<uint(maxRetries-1)) * time.Second)
maxRetries--
default:
body, _ := io.ReadAll(resp.Body)
return nil, fmt.Errorf("api error %d: %s", resp.StatusCode, string(body))
}
}
}
// --- Normalization & Aggregation ---
func NormalizeScore(rawScore float64) float64 {
return ((rawScore + 1.0) / 2.0) * 100.0
}
func AggregateTrends(entities []SentimentEntity) SentimentTrend {
var trend SentimentTrend
var totalScore float64
for _, e := range entities {
switch e.Sentiment.Polarity {
case "positive":
trend.PositiveCount++
case "neutral":
trend.NeutralCount++
case "negative":
trend.NegativeCount++
}
totalScore += e.Sentiment.Score
}
if len(entities) > 0 {
trend.AvgScore = totalScore / float64(len(entities))
}
if trend.PositiveCount > trend.NegativeCount+5 {
trend.Shift = "improving"
} else if trend.NegativeCount > trend.PositiveCount+5 {
trend.Shift = "declining"
} else {
trend.Shift = "stable"
}
return trend
}
// --- Audit & Webhook ---
func WriteAuditLog(logFile string, log AuditLog) error {
f, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return err
}
defer f.Close()
log.Timestamp = time.Now().UTC().Format(time.RFC3339)
data, _ := json.Marshal(log)
_, err = f.Write(append(data, '\n'))
return err
}
func HandleWebhook(w http.ResponseWriter, r *http.Request, coachEndpoint, logFile string) {
if r.Method != http.MethodPost {
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
return
}
var payload WebhookPayload
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
normalized := NormalizeScore(payload.Sentiment.Score)
audit := AuditLog{
Action: "sentiment_sync",
Interaction: payload.InteractionID,
RawScore: payload.Sentiment.Score,
Normalized: normalized,
Polarity: payload.Sentiment.Polarity,
}
WriteAuditLog(logFile, audit)
coachPayload := map[string]interface{}{
"agent_interaction": payload.InteractionID,
"quality_score": normalized,
"polarity": payload.Sentiment.Polarity,
"action_required": normalized < 40.0,
"timestamp": time.Now().UTC().Format(time.RFC3339),
}
coachJSON, _ := json.Marshal(coachPayload)
req, _ := http.NewRequest("POST", coachEndpoint, bytes.NewReader(coachJSON))
req.Header.Set("Content-Type", "application/json")
http.DefaultClient.Do(req)
w.WriteHeader(http.StatusOK)
w.Write([]byte("processed"))
}
// --- Public Analyzer Interface ---
type SentimentAnalyzer struct {
Config OAuthConfig
Retention int
CoachURL string
LogFile string
}
func (sa *SentimentAnalyzer) RunBatchAnalysis(startDate, endDate time.Time, interactionIDs []string) (SentimentTrend, error) {
token, err := FetchOAuthToken(sa.Config)
if err != nil {
return SentimentTrend{}, err
}
query, err := ValidateAndBuildQuery(interactionIDs, startDate, endDate, sa.Retention)
if err != nil {
return SentimentTrend{}, err
}
entities, err := QuerySentimentWithPagination(sa.Config.Host, token, query)
if err != nil {
return SentimentTrend{}, err
}
return AggregateTrends(entities), nil
}
func ValidateAndBuildQuery(interactionIDs []string, start, end time.Time, retentionDays int) (AnalyticsQuery, error) {
minDate := time.Now().AddDate(0, 0, -retentionDays)
if start.Before(minDate) {
return AnalyticsQuery{}, fmt.Errorf("dateFrom %s exceeds retention policy of %d days", start.Format(time.RFC3339), retentionDays)
}
if end.Before(start) {
return AnalyticsQuery{}, fmt.Errorf("dateTo must be after dateFrom")
}
whereClause := ""
if len(interactionIDs) > 0 {
quotedIDs := make([]string, len(interactionIDs))
for i, id := range interactionIDs {
quotedIDs[i] = fmt.Sprintf("'%s'", id)
}
whereClause = fmt.Sprintf("interaction.id IN [%s]", joinStrings(quotedIDs, ", "))
}
return AnalyticsQuery{
DateFrom: start.Format(time.RFC3339),
DateTo: end.Format(time.RFC3339),
Size: 250,
Select: []string{"sentiment.score", "sentiment.polarity", "interaction.id", "date"},
Where: []string{whereClause},
}, nil
}
func joinStrings(s []string, sep string) string {
var b bytes.Buffer
for i, v := range s {
if i > 0 {
b.WriteString(sep)
}
b.WriteString(v)
}
return b.String()
}
func main() {
cfg := OAuthConfig{
Host: "api.us.genesyscloud.com",
ClientID: "YOUR_CLIENT_ID",
Secret: "YOUR_CLIENT_SECRET",
}
analyzer := SentimentAnalyzer{
Config: cfg,
Retention: 90,
CoachURL: "https://coaching.internal/api/v1/sentiment/update",
LogFile: "sentiment_audit.log",
}
// Start webhook listener
http.HandleFunc("/webhook/coaching", func(w http.ResponseWriter, r *http.Request) {
HandleWebhook(w, r, analyzer.CoachURL, analyzer.LogFile)
})
go func() {
log.Println("Webhook listener started on :8080")
log.Fatal(http.ListenAndServe(":8080", nil))
}()
// Run batch analysis
start := time.Now().AddDate(0, 0, -30)
end := time.Now()
trend, err := analyzer.RunBatchAnalysis(start, end, []string{})
if err != nil {
log.Fatalf("Analysis failed: %v", err)
}
log.Printf("Trend: %+v", trend)
select {}
}
Common Errors & Debugging
Error: 401 Unauthorized or 403 Forbidden
- Cause: Expired OAuth token, missing
analytics:conversations:readscope, or client credentials lack analytics permissions. - Fix: Verify the OAuth client has the
analytics:conversations:readscope assigned in the Genesys Cloud admin console. Ensure the token refresh logic executes before expiration. The providedFetchOAuthTokenfunction caches tokens and refreshes five minutes before expiry. - Code fix: Add explicit scope validation in your OAuth client configuration. Log the token response to confirm
access_tokenis populated.
Error: 429 Too Many Requests
- Cause: Genesys Cloud enforces rate limits per tenant and per endpoint. High-frequency pagination loops trigger cascading throttles.
- Fix: Implement exponential backoff. The
QuerySentimentWithPaginationfunction includes a retry loop with sleep intervals of 1s, 2s, 4s, 8s, 16s. Respect theRetry-Afterheader if present in production deployments. - Code fix: Check the
maxRetriesdecrement and adjust sleep duration based on your tenant throughput limits.
Error: 400 Bad Request (Query Validation)
- Cause: Malformed
whereclause, unsupported metric inselect, or date range exceeds data retention. - Fix: Validate
dateFromagainst your organization retention window before sending the request. Ensureselectcontains only supported analytics metrics. TheValidateAndBuildQueryfunction enforces retention checks. - Code fix: Wrap the API call in a defer-recover or explicit error check. Parse the Genesys error payload to identify the exact invalid parameter.
Error: 412 Precondition Failed (Model Unavailable)
- Cause: Sentiment analysis models are region-specific or language-specific. Querying interactions without supported language tags returns empty or fails.
- Fix: Filter interactions by supported languages using the
whereclause. Verify your Genesys Cloud environment has conversation analytics sentiment enabled. - Code fix: Add a language filter to the
wherearray:["language IN ['en', 'es']"]. Handle emptyentitiesarrays gracefully.