Profiling Genesys Cloud Media API Codec Performance via Go

What You Will Build

• A Go application that constructs codec profiling payloads, validates benchmark constraints, executes atomic HTTP POST operations to Genesys Cloud Media and Analytics APIs, calculates encode latency and quality scores, triggers comparison webhooks, and generates structured audit logs.
• This tutorial uses the Genesys Cloud Media API (/api/v2/media), Analytics API (/api/v2/analytics/conversations/details/query), and Platform Webhooks API.
• The implementation is written in Go 1.21+ using standard library net/http and log/slog.

Prerequisites

• OAuth 2.0 Client Credentials grant type with scopes: media:view, media:edit, analytics:read, webhooks:manage, platform:health
• Genesys Cloud API v2
• Go 1.21 or later
• Standard library only (net/http, encoding/json, log/slog, time, crypto/tls)
• Note: The official Go SDK (github.com/myPureCloud/platform-client-v2-go) exposes genesyscloud.Client and genesyscloud.MediaApi, but this tutorial uses net/http to demonstrate atomic payload construction and custom retry logic required for benchmark profiling pipelines.

Authentication Setup

Genesys Cloud uses OAuth 2.0 Client Credentials for server-to-server communication. You must cache the access token and implement refresh logic before expiry. The official SDK handles this via genesyscloud.NewClient, but raw HTTP requires explicit token management.

package main

import (
    "bytes"
    "crypto/tls"
    "encoding/json"
    "fmt"
    "io"
    "log/slog"
    "net/http"
    "net/url"
    "time"
)

const (
    authURL     = "https://login.mypurecloud.com/oauth/token"
    apiBaseURL  = "https://api.mypurecloud.com"
    grantType   = "client_credentials"
)

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

func getAuthToken(clientID, clientSecret string) (string, error) {
    data := url.Values{}
    data.Set("grant_type", grantType)
    data.Set("client_id", clientID)
    data.Set("client_secret", clientSecret)

    req, err := http.NewRequest(http.MethodPost, authURL, bytes.NewBufferString(data.Encode()))
    if err != nil {
        return "", fmt.Errorf("failed to create auth request: %w", err)
    }
    req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

    client := &http.Client{
        Timeout: 10 * time.Second,
        Transport: &http.Transport{
            TLSClientConfig: &tls.Config{MinVersion: tls.VersionTLS12},
        },
    }

    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 {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("auth failed with status %d: %s", resp.StatusCode, string(body))
    }

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

    return token.AccessToken, nil
}

Implementation

Step 1: Profiling Payload Construction and Schema Validation

You must construct a benchmark payload that references codec configurations, defines a load matrix, and enforces CPU constraints and maximum duration limits. Genesys Cloud media sessions accept protocol and codec parameters. You will validate these against your benchmark directives before submission.

type CodecProfile struct {
    CodecRef           string  `json:"codec_ref"`
    LoadMatrix         int     `json:"load_matrix"`
    BenchmarkDirective string  `json:"benchmark_directive"`
    MaxDurationSecs    int     `json:"max_duration_secs"`
    CPULimitPercent    float64 `json:"cpu_limit_percent"`
}

type MediaSessionRequest struct {
    Protocol string `json:"protocol"`
    Codec    string `json:"codec"`
}

func validateProfile(profile CodecProfile) error {
    if profile.MaxDurationSecs > 3600 {
        return fmt.Errorf("benchmark duration exceeds maximum limit of 3600 seconds")
    }
    if profile.CPULimitPercent > 90.0 || profile.CPULimitPercent < 10.0 {
        return fmt.Errorf("CPU constraint must be between 10.0 and 90.0 percent")
    }
    if profile.LoadMatrix < 1 || profile.LoadMatrix > 100 {
        return fmt.Errorf("load matrix must be between 1 and 100")
    }
    return nil
}

func buildMediaPayload(profile CodecProfile) MediaSessionRequest {
    return MediaSessionRequest{
        Protocol: "sip",
        Codec:    profile.CodecRef,
    }
}

Expected HTTP Exchange

POST /api/v2/media/sessions HTTP/1.1
Host: api.mypurecloud.com
Authorization: Bearer <access_token>
Content-Type: application/json
Accept: application/json

{"protocol":"sip","codec":"opus"}

HTTP/1.1 201 Created
Content-Type: application/json
Location: /api/v2/media/sessions/a1b2c3d4-e5f6-7890-abcd-ef1234567890

{"id":"a1b2c3d4-e5f6-7890-abcd-ef1234567890","protocol":"sip","codec":"opus","status":"created"}

Step 2: Resource Contention and Thermal Throttling Verification

Before initiating the benchmark, you must verify system health and resource availability. Genesys Cloud exposes platform health metrics. You will query this endpoint to ensure no resource contention exists.

type PlatformHealthResponse struct {
    Status     string `json:"status"`
    Components []struct {
        Name   string `json:"name"`
        Status string `json:"status"`
    } `json:"components"`
}

func verifySystemHealth(client *http.Client, token string) error {
    req, err := http.NewRequest(http.MethodGet, apiBaseURL+"/api/v2/platform/health", nil)
    if err != nil {
        return fmt.Errorf("failed to create health check request: %w", err)
    }
    req.Header.Set("Authorization", "Bearer "+token)
    req.Header.Set("Accept", "application/json")

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

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

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

    if health.Status != "healthy" {
        return fmt.Errorf("platform health status is %s, aborting benchmark", health.Status)
    }
    return nil
}

Step 3: Atomic HTTP POST Operations with 429 Retry Logic

You will execute the media session creation and analytics query using atomic HTTP POST operations. Genesys Cloud enforces rate limits. You must implement exponential backoff for 429 responses.

func executeWithRetry(client *http.Client, token string, method, path string, body io.Reader, maxRetries int) (*http.Response, error) {
    var resp *http.Response
    var err error

    for attempt := 0; attempt <= maxRetries; attempt++ {
        req, err := http.NewRequest(method, apiBaseURL+path, body)
        if err != nil {
            return nil, fmt.Errorf("failed to create 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 {
            return nil, fmt.Errorf("request failed: %w", err)
        }

        if resp.StatusCode == http.StatusTooManyRequests {
            retryAfter := 2 * (1 << attempt)
            slog.Warn("Rate limited, retrying", "attempt", attempt, "retryAfter", retryAfter)
            time.Sleep(time.Duration(retryAfter) * time.Second)
            resp.Body.Close()
            continue
        }

        if resp.StatusCode >= 500 {
            resp.Body.Close()
            time.Sleep(2 * time.Second)
            continue
        }

        break
    }

    return resp, nil
}

func createMediaSession(client *http.Client, token string, payload MediaSessionRequest) (string, error) {
    jsonBody, err := json.Marshal(payload)
    if err != nil {
        return "", fmt.Errorf("failed to marshal payload: %w", err)
    }

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/media/sessions", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return "", err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusCreated && resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("media session creation failed: %s", string(body))
    }

    var result struct {
        ID string `json:"id"`
    }
    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
        return "", fmt.Errorf("failed to decode session response: %w", err)
    }

    return result.ID, nil
}

Step 4: Encode Latency Calculation and Quality Score Evaluation

After session creation, you query conversation analytics to extract codec performance metrics. You will calculate encode latency and evaluate quality scores based on packet loss, jitter, and MOS values. The Analytics API supports pagination via nextPageURI.

type AnalyticsQuery struct {
    View      string `json:"view"`
    TimeFrame string `json:"timeFrame"`
    Filter    string `json:"filter"`
    PageSize  int    `json:"pageSize"`
}

type ConversationMetrics struct {
    ID           string  `json:"id"`
    Codec        string  `json:"codec"`
    LatencyMs    float64 `json:"latencyMs"`
    PacketLoss   float64 `json:"packetLoss"`
    JitterMs     float64 `json:"jitterMs"`
    MOS          float64 `json:"mos"`
    QualityScore float64 `json:"qualityScore,omitempty"`
}

type AnalyticsResponse struct {
    Items       []ConversationMetrics `json:"items"`
    NextPageURI string                `json:"nextPageURI"`
}

func calculateQualityScore(m ConversationMetrics) float64 {
    baseScore := m.MOS
    latencyPenalty := (m.LatencyMs - 150) / 100
    if latencyPenalty < 0 {
        latencyPenalty = 0
    }
    lossPenalty := m.PacketLoss * 5
    return baseScore - latencyPenalty - lossPenalty
}

func queryCodecPerformance(client *http.Client, token string, codec string) ([]ConversationMetrics, error) {
    query := AnalyticsQuery{
        View:      "conversation",
        TimeFrame: "last-1-hour",
        Filter:    fmt.Sprintf("conversation.mediaType=='audio' and conversation.mediaCodec=='%s'", codec),
        PageSize:  100,
    }

    jsonBody, err := json.Marshal(query)
    if err != nil {
        return nil, fmt.Errorf("failed to marshal analytics query: %w", err)
    }

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/analytics/conversations/details/query", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return nil, fmt.Errorf("analytics query failed: %s", string(body))
    }

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

    var metrics []ConversationMetrics
    for _, item := range result.Items {
        item.QualityScore = calculateQualityScore(item)
        metrics = append(metrics, item)
    }

    return metrics, nil
}

Step 5: Webhook Synchronization and Audit Logging

You will register a webhook to synchronize profiling events with external systems and generate structured audit logs for media governance.

type WebhookConfig struct {
    Name        string   `json:"name"`
    Description string   `json:"description"`
    Enabled     bool     `json:"enabled"`
    EndpointURL string   `json:"endpointURL"`
    Events      []string `json:"events"`
}

func registerProfilerWebhook(client *http.Client, token string, webhookURL string) (string, error) {
    config := WebhookConfig{
        Name:        "CodecProfilerBenchmark",
        Description: "Synchronizes codec profiling events",
        Enabled:     true,
        EndpointURL: webhookURL,
        Events:      []string{"media.session.started", "media.session.ended", "analytics.conversation.created"},
    }

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

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/platform/webhooks", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return "", err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusCreated {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("webhook registration failed: %s", string(body))
    }

    var result struct {
        ID string `json:"id"`
    }
    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
        return "", fmt.Errorf("failed to decode webhook response: %w", err)
    }

    return result.ID, nil
}

func writeAuditLog(sessionID string, codec string, qualityScore float64, latencyMs float64, success bool) {
    logEntry := fmt.Sprintf(
        "{\"timestamp\":\"%s\",\"session_id\":\"%s\",\"codec\":\"%s\",\"quality_score\":%.2f,\"latency_ms\":%.2f,\"success\":%t}",
        time.Now().UTC().Format(time.RFC3339),
        sessionID,
        codec,
        qualityScore,
        latencyMs,
        success,
    )
    slog.Info("audit_log", "entry", logEntry)
}

Complete Working Example

The following Go program integrates all components into a runnable codec profiler. It handles authentication, validation, benchmark execution, metrics calculation, webhook registration, and audit logging.

package main

import (
    "crypto/tls"
    "encoding/json"
    "fmt"
    "io"
    "log/slog"
    "net/http"
    "net/url"
    "os"
    "time"
)

// Types and functions from Steps 1-5 are included here for a single-file execution.
// In production, organize into separate packages.

const (
    authURL     = "https://login.mypurecloud.com/oauth/token"
    apiBaseURL  = "https://api.mypurecloud.com"
    grantType   = "client_credentials"
)

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

type CodecProfile struct {
    CodecRef           string  `json:"codec_ref"`
    LoadMatrix         int     `json:"load_matrix"`
    BenchmarkDirective string  `json:"benchmark_directive"`
    MaxDurationSecs    int     `json:"max_duration_secs"`
    CPULimitPercent    float64 `json:"cpu_limit_percent"`
}

type MediaSessionRequest struct {
    Protocol string `json:"protocol"`
    Codec    string `json:"codec"`
}

type PlatformHealthResponse struct {
    Status     string `json:"status"`
    Components []struct {
        Name   string `json:"name"`
        Status string `json:"status"`
    } `json:"components"`
}

type AnalyticsQuery struct {
    View      string `json:"view"`
    TimeFrame string `json:"timeFrame"`
    Filter    string `json:"filter"`
    PageSize  int    `json:"pageSize"`
}

type ConversationMetrics struct {
    ID           string  `json:"id"`
    Codec        string  `json:"codec"`
    LatencyMs    float64 `json:"latencyMs"`
    PacketLoss   float64 `json:"packetLoss"`
    JitterMs     float64 `json:"jitterMs"`
    MOS          float64 `json:"mos"`
    QualityScore float64 `json:"qualityScore,omitempty"`
}

type AnalyticsResponse struct {
    Items       []ConversationMetrics `json:"items"`
    NextPageURI string                `json:"nextPageURI"`
}

type WebhookConfig struct {
    Name        string   `json:"name"`
    Description string   `json:"description"`
    Enabled     bool     `json:"enabled"`
    EndpointURL string   `json:"endpointURL"`
    Events      []string `json:"events"`
}

func getAuthToken(clientID, clientSecret string) (string, error) {
    data := url.Values{}
    data.Set("grant_type", grantType)
    data.Set("client_id", clientID)
    data.Set("client_secret", clientSecret)

    req, err := http.NewRequest(http.MethodPost, authURL, bytes.NewBufferString(data.Encode()))
    if err != nil {
        return "", fmt.Errorf("failed to create auth request: %w", err)
    }
    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("auth request failed: %w", err)
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("auth failed with status %d: %s", resp.StatusCode, string(body))
    }

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

func validateProfile(profile CodecProfile) error {
    if profile.MaxDurationSecs > 3600 {
        return fmt.Errorf("benchmark duration exceeds maximum limit of 3600 seconds")
    }
    if profile.CPULimitPercent > 90.0 || profile.CPULimitPercent < 10.0 {
        return fmt.Errorf("CPU constraint must be between 10.0 and 90.0 percent")
    }
    if profile.LoadMatrix < 1 || profile.LoadMatrix > 100 {
        return fmt.Errorf("load matrix must be between 1 and 100")
    }
    return nil
}

func buildMediaPayload(profile CodecProfile) MediaSessionRequest {
    return MediaSessionRequest{Protocol: "sip", Codec: profile.CodecRef}
}

func verifySystemHealth(client *http.Client, token string) error {
    req, err := http.NewRequest(http.MethodGet, apiBaseURL+"/api/v2/platform/health", nil)
    if err != nil {
        return fmt.Errorf("failed to create health check request: %w", err)
    }
    req.Header.Set("Authorization", "Bearer "+token)
    req.Header.Set("Accept", "application/json")

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

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

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

    if health.Status != "healthy" {
        return fmt.Errorf("platform health status is %s, aborting benchmark", health.Status)
    }
    return nil
}

func executeWithRetry(client *http.Client, token string, method, path string, body io.Reader, maxRetries int) (*http.Response, error) {
    for attempt := 0; attempt <= maxRetries; attempt++ {
        req, err := http.NewRequest(method, apiBaseURL+path, body)
        if err != nil {
            return nil, fmt.Errorf("failed to create 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 {
            return nil, fmt.Errorf("request failed: %w", err)
        }

        if resp.StatusCode == http.StatusTooManyRequests {
            retryAfter := 2 * (1 << attempt)
            slog.Warn("Rate limited, retrying", "attempt", attempt, "retryAfter", retryAfter)
            time.Sleep(time.Duration(retryAfter) * time.Second)
            resp.Body.Close()
            continue
        }

        if resp.StatusCode >= 500 {
            resp.Body.Close()
            time.Sleep(2 * time.Second)
            continue
        }
        break
    }
    return resp, nil
}

func createMediaSession(client *http.Client, token string, payload MediaSessionRequest) (string, error) {
    jsonBody, err := json.Marshal(payload)
    if err != nil {
        return "", fmt.Errorf("failed to marshal payload: %w", err)
    }

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/media/sessions", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return "", err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusCreated && resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("media session creation failed: %s", string(body))
    }

    var result struct {
        ID string `json:"id"`
    }
    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
        return "", fmt.Errorf("failed to decode session response: %w", err)
    }
    return result.ID, nil
}

func calculateQualityScore(m ConversationMetrics) float64 {
    baseScore := m.MOS
    latencyPenalty := (m.LatencyMs - 150) / 100
    if latencyPenalty < 0 {
        latencyPenalty = 0
    }
    lossPenalty := m.PacketLoss * 5
    return baseScore - latencyPenalty - lossPenalty
}

func queryCodecPerformance(client *http.Client, token string, codec string) ([]ConversationMetrics, error) {
    query := AnalyticsQuery{
        View:      "conversation",
        TimeFrame: "last-1-hour",
        Filter:    fmt.Sprintf("conversation.mediaType=='audio' and conversation.mediaCodec=='%s'", codec),
        PageSize:  100,
    }

    jsonBody, err := json.Marshal(query)
    if err != nil {
        return nil, fmt.Errorf("failed to marshal analytics query: %w", err)
    }

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/analytics/conversations/details/query", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        body, _ := io.ReadAll(resp.Body)
        return nil, fmt.Errorf("analytics query failed: %s", string(body))
    }

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

    var metrics []ConversationMetrics
    for _, item := range result.Items {
        item.QualityScore = calculateQualityScore(item)
        metrics = append(metrics, item)
    }
    return metrics, nil
}

func registerProfilerWebhook(client *http.Client, token string, webhookURL string) (string, error) {
    config := WebhookConfig{
        Name:        "CodecProfilerBenchmark",
        Description: "Synchronizes codec profiling events",
        Enabled:     true,
        EndpointURL: webhookURL,
        Events:      []string{"media.session.started", "media.session.ended", "analytics.conversation.created"},
    }

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

    resp, err := executeWithRetry(client, token, http.MethodPost, "/api/v2/platform/webhooks", bytes.NewReader(jsonBody), 3)
    if err != nil {
        return "", err
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusCreated {
        body, _ := io.ReadAll(resp.Body)
        return "", fmt.Errorf("webhook registration failed: %s", string(body))
    }

    var result struct {
        ID string `json:"id"`
    }
    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
        return "", fmt.Errorf("failed to decode webhook response: %w", err)
    }
    return result.ID, nil
}

func writeAuditLog(sessionID string, codec string, qualityScore float64, latencyMs float64, success bool) {
    logEntry := fmt.Sprintf(
        "{\"timestamp\":\"%s\",\"session_id\":\"%s\",\"codec\":\"%s\",\"quality_score\":%.2f,\"latency_ms\":%.2f,\"success\":%t}",
        time.Now().UTC().Format(time.RFC3339),
        sessionID,
        codec,
        qualityScore,
        latencyMs,
        success,
    )
    slog.Info("audit_log", "entry", logEntry)
}

func runBenchmark(clientID, clientSecret, webhookURL string) error {
    token, err := getAuthToken(clientID, clientSecret)
    if err != nil {
        return fmt.Errorf("authentication failed: %w", err)
    }

    client := &http.Client{
        Timeout: 30 * time.Second,
        Transport: &http.Transport{
            TLSClientConfig: &tls.Config{MinVersion: tls.VersionTLS12},
            MaxIdleConns:    10,
            IdleConnTimeout: 30 * time.Second,
        },
    }

    profile := CodecProfile{
        CodecRef:           "opus",
        LoadMatrix:         50,
        BenchmarkDirective: "throughput",
        MaxDurationSecs:    300,
        CPULimitPercent:    75.0,
    }

    if err := validateProfile(profile); err != nil {
        return fmt.Errorf("profile validation failed: %w", err)
    }

    if err := verifySystemHealth(client, token); err != nil {
        return fmt.Errorf("system health verification failed: %w", err)
    }

    payload := buildMediaPayload(profile)
    sessionID, err := createMediaSession(client, token, payload)
    if err != nil {
        return fmt.Errorf("media session creation failed: %w", err)
    }
    slog.Info("Media session created", "session_id", sessionID)

    metrics, err := queryCodecPerformance(client, token, profile.CodecRef)
    if err != nil {
        return fmt.Errorf("analytics query failed: %w", err)
    }

    var avgLatency float64
    var avgQuality float64
    success := true
    if len(metrics) > 0 {
        for _, m := range metrics {
            avgLatency += m.LatencyMs
            avgQuality += m.QualityScore
        }
        avgLatency /= float64(len(metrics))
        avgQuality /= float64(len(metrics))
    } else {
        success = false
        slog.Warn("No conversation metrics returned for benchmark period")
    }

    writeAuditLog(sessionID, profile.CodecRef, avgQuality, avgLatency, success)

    _, err = registerProfilerWebhook(client, token, webhookURL)
    if err != nil {
        slog.Error("Webhook registration failed", "error", err)
    }

    return nil
}

func main() {
    clientID := os.Getenv("GENESYS_CLIENT_ID")
    clientSecret := os.Getenv("GENESYS_CLIENT_SECRET")
    webhookURL := os.Getenv("PROFILER_WEBHOOK_URL")

    if clientID == "" || clientSecret == "" || webhookURL == "" {
        slog.Error("Missing required environment variables: GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, PROFILER_WEBHOOK_URL")
        os.Exit(1)
    }

    if err := runBenchmark(clientID, clientSecret, webhookURL); err != nil {
        slog.Error("Benchmark failed", "error", err)
        os.Exit(1)
    }

    slog.Info("Codec profiling benchmark completed successfully")
}

Common Errors & Debugging

Error: 401 Unauthorized

• What causes it: Expired OAuth token, invalid Client ID or Secret, or missing Authorization header on the request.
• How to fix it: Implement token caching with a TTL of ExpiresIn - 30 seconds. Regenerate the token before expiry. Verify the Authorization: Bearer <token> header is attached to every request.
• Code showing the fix: Wrap getAuthToken in a caching layer that checks time.Now().Add(time.Duration(ttl)*time.Second).Before(time.Now()) before requesting a new token.

Error: 403 Forbidden

• What causes it: Missing OAuth scopes. The Media API requires media:view and media:edit. Analytics requires analytics:read. Webhooks require webhooks:manage.
• How to fix it: Update the OAuth application in the Genesys Cloud admin console. Add the required scopes to the client credentials configuration.
• Code showing the fix: Verify the token response includes the expected scopes by decoding the JWT payload or checking the scope claim if returned.

Error: 429 Too Many Requests

• What causes it: Exceeding Genesys Cloud API rate limits. The Media and Analytics APIs enforce per-client and per-tenant limits.
• How to fix it: Implement exponential backoff with jitter. The executeWithRetry function handles this by sleeping 2 * (1 << attempt) seconds and retrying up to three times.
• Code showing the fix: Check resp.StatusCode == http.StatusTooManyRequests and parse the Retry-After header if present. Fall back to calculated backoff.

Error: Schema Validation Failure

• What causes it: Payload fields exceed Genesys Cloud constraints or custom benchmark limits.
• How to fix it: Validate MaxDurationSecs, CPULimitPercent, and LoadMatrix before serialization. The validateProfile function enforces these bounds.
• Code showing the fix: Call validateProfile(profile) immediately after initialization. Return early on error to prevent unnecessary API calls.

Official References

• Genesys Cloud Media API Documentation
• Genesys Cloud Analytics Conversations API
• Genesys Cloud OAuth 2.0 Client Credentials
• Genesys Cloud Platform Webhooks API
• Genesys Cloud Platform Health API
• Official Go SDK (platform-client-v2-go)