Searching Genesys Cloud Call Recordings via Archiving API with Go

What You Will Build

• Build a Go-based recording searcher that queries the Genesys Cloud Archiving API using structured filter payloads, metadata matrices, and sorting directives.
• Use the POST /api/v2/architect/recordings/query endpoint with explicit JSON construction and HTTP client management.
• Cover Go 1.21+ with standard library imports, structured logging, and production-ready error handling.

Prerequisites

• OAuth 2.0 Client Credentials flow configured in Genesys Cloud Admin
• Required scopes: architect:recordings:view
• Go 1.21+ runtime
• External dependencies: github.com/MyPureCloud/platform-client-v2-go (for SDK reference), github.com/golang-jwt/jwt/v5 (for scope verification)
• Environment variables: GENESYS_REGION, GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, COMPLIANCE_WEBHOOK_URL

Authentication Setup

The Genesys Cloud platform requires a valid bearer token for all Archiving API calls. The Client Credentials flow is the standard approach for server-to-server integrations. The following code demonstrates token acquisition, caching, and automatic refresh logic.

package auth

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"os"
	"time"
)

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

type OAuthClient struct {
	client      *http.Client
	region      string
	clientID    string
	clientSecret string
	token       TokenResponse
	expiresAt   time.Time
}

func NewOAuthClient(region, clientID, clientSecret string) *OAuthClient {
	return &OAuthClient{
		client:       &http.Client{Timeout: 10 * time.Second},
		region:       region,
		clientID:     clientID,
		clientSecret: clientSecret,
	}
}

func (o *OAuthClient) GetToken() (string, error) {
	if time.Now().Before(o.expiresAt.Add(-5 * time.Minute)) {
		return o.token.AccessToken, nil
	}

	payload := fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", o.clientID, o.clientSecret)
	req, err := http.NewRequest("POST", fmt.Sprintf("https://%s/oauth/token", o.region), bytes.NewBufferString(payload))
	if err != nil {
		return "", fmt.Errorf("failed to create token request: %w", err)
	}
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	resp, err := o.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("token request returned %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)
	}

	o.token = tokenResp
	o.expiresAt = time.Now().Add(time.Duration(tokenResp.ExpiresIn) * time.Second)
	return tokenResp.AccessToken, nil
}

Implementation

Step 1: Constructing the Search Payload & Schema Validation

The Archiving engine enforces strict constraints on query payloads. The size parameter cannot exceed 2000. The query field uses a simplified filter syntax. Metadata arrays must reference valid recording attributes. Sorting directives require explicit field and direction pairs.

package searcher

import (
	"encoding/json"
	"fmt"
	"time"
)

type SortDirective struct {
	Field     string `json:"field"`
	Direction string `json:"direction"`
}

type RecordingsSearchRequest struct {
	Size     int             `json:"size,omitempty"`
	Query    string          `json:"query,omitempty"`
	Sort     []SortDirective `json:"sort,omitempty"`
	Metadata []string        `json:"metadata,omitempty"`
}

func BuildSearchPayload(from, to time.Time, maxResults int) (*RecordingsSearchRequest, error) {
	if maxResults < 1 || maxResults > 2000 {
		return nil, fmt.Errorf("size must be between 1 and 2000, got %d", maxResults)
	}

	fromStr := from.UTC().Format(time.RFC3339)
	toStr := to.UTC().Format(time.RFC3339)

	query := fmt.Sprintf("mediaTypes: CALL fromDateTime: %s toDateTime: %s status: READY", fromStr, toStr)

	payload := &RecordingsSearchRequest{
		Size:  maxResults,
		Query: query,
		Sort: []SortDirective{
			{Field: "toDateTime", Direction: "DESC"},
		},
		Metadata: []string{
			"callRecordingId", "mediaType", "fromDateTime", "toDateTime",
			"status", "duration", "format", "uri",
		},
	}

	return payload, nil
}

Step 2: Time Range Overlap & Permission Scope Verification

Before executing the query, the system must validate temporal boundaries and verify that the OAuth token contains the required architect:recordings:view scope. This prevents engine rejections and unauthorized access attempts.

package searcher

import (
	"fmt"
	"strings"
	"time"
)

func ValidateTimeRange(from, to time.Time) error {
	if !from.Before(to) {
		return fmt.Errorf("fromDateTime must be before toDateTime")
	}

	duration := to.Sub(from)
	if duration > 30*24*time.Hour {
		return fmt.Errorf("time range exceeds 30-day maximum. requested: %v", duration)
	}
	return nil
}

func VerifyScopes(token string, requiredScope string) error {
	parts := strings.Split(token, ".")
	if len(parts) != 3 {
		return fmt.Errorf("invalid JWT structure")
	}

	// In production, decode and verify signature. For scope checking, we parse the payload segment.
	// This example assumes a pre-validated token string for demonstration.
	// Real implementation should use github.com/golang-jwt/jwt/v5
	claims := extractClaimsFromToken(token)
	if claims == nil {
		return fmt.Errorf("failed to extract token claims")
	}

	scopes := strings.Fields(claims["scope"].(string))
	for _, s := range scopes {
		if s == requiredScope {
			return nil
		}
	}
	return fmt.Errorf("missing required scope: %s", requiredScope)
}

// extractClaimsFromToken is a stub for JWT parsing logic.
// Replace with jwt.ParseWithClaims in production.
func extractClaimsFromToken(token string) map[string]interface{} {
	// Placeholder for actual JWT decoding
	return map[string]interface{}{"scope": "architect:recordings:view analytics:conversations:view"}
}

Step 3: Atomic POST Execution & Pagination Handling

The recordings query endpoint returns a nextPageUri when results exceed the requested size. The client must follow this URI atomically without reconstructing the payload. The implementation includes exponential backoff for 429 rate-limit responses.

package searcher

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"
)

type RecordingItem struct {
	ID           string `json:"id"`
	URI          string `json:"uri"`
	Format       string `json:"format"`
	FromDateTime string `json:"fromDateTime"`
	ToDateTime   string `json:"toDateTime"`
	MediaType    string `json:"mediaType"`
	Duration     int    `json:"duration"`
}

type RecordingsQueryResponse struct {
	PageSize    int             `json:"pageSize"`
	Total       int             `json:"total"`
	NextPageURI string          `json:"nextPageUri,omitempty"`
	Entities    []RecordingItem `json:"entities"`
}

type RecordingSearcher struct {
	client *http.Client
	region string
}

func NewRecordingSearcher(region string) *RecordingSearcher {
	return &RecordingSearcher{
		client: &http.Client{Timeout: 30 * time.Second},
		region: region,
	}
}

func (s *RecordingSearcher) ExecuteQuery(token string, payload *RecordingsSearchRequest) ([]RecordingItem, error) {
	var allItems []RecordingItem
	var uri string

	// Initial call
	jsonData, err := json.Marshal(payload)
	if err != nil {
		return nil, fmt.Errorf("failed to marshal payload: %w", err)
	}

	uri = fmt.Sprintf("https://%s/api/v2/architect/recordings/query", s.region)

	for uri != "" {
		var req *http.Request
		if len(jsonData) > 0 {
			req, err = http.NewRequest("POST", uri, bytes.NewBuffer(jsonData))
		} else {
			req, err = http.NewRequest("GET", uri, nil)
		}
		if err != nil {
			return nil, fmt.Errorf("failed to create request: %w", err)
		}

		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("Accept", "application/json")

		resp, err := s.executeWithRetry(req)
		if err != nil {
			return nil, fmt.Errorf("query failed: %w", err)
		}
		defer resp.Body.Close()

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

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

		allItems = append(allItems, result.Entities...)
		uri = result.NextPageURI
		jsonData = nil // Subsequent calls use GET with nextPageUri
	}

	return allItems, nil
}

func (s *RecordingSearcher) executeWithRetry(req *http.Request) (*http.Response, error) {
	maxRetries := 3
	backoff := 1 * time.Second

	for i := 0; i <= maxRetries; i++ {
		resp, err := s.client.Do(req)
		if err != nil {
			return nil, err
		}

		if resp.StatusCode == 429 {
			if i == maxRetries {
				return nil, fmt.Errorf("exceeded retry limit for 429 rate limit")
			}
			resp.Body.Close()
			time.Sleep(backoff)
			backoff *= 2
			continue
		}
		return resp, nil
	}
	return nil, fmt.Errorf("unexpected retry loop exit")
}

Step 4: Format Verification, Download Link Generation & Webhook Sync

Recordings may exist in multiple formats (mp3, wav, mp4). The system verifies the format field, constructs safe download URIs, and synchronizes completion events to external compliance tools via webhook callbacks.

package searcher

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"
)

type ComplianceWebhookPayload struct {
	EventID   string      `json:"event_id"`
	Timestamp string      `json:"timestamp"`
	SearchID  string      `json:"search_id"`
	Total     int         `json:"total_recordings"`
	Status    string      `json:"status"`
	Metadata  interface{} `json:"metadata,omitempty"`
}

func (s *RecordingSearcher) ProcessResults(items []RecordingItem, webhookURL, searchID string) error {
	validFormats := map[string]bool{"mp3": true, "wav": true, "mp4": true}
	var processed []RecordingItem

	for _, item := range items {
		if !validFormats[item.Format] {
			fmt.Printf("Skipping recording %s with unsupported format: %s\n", item.ID, item.Format)
			continue
		}

		// Generate safe download link
		downloadURI := fmt.Sprintf("%s?token=secure-session-token", item.URI)
		item.URI = downloadURI
		processed = append(processed, item)
	}

	payload := ComplianceWebhookPayload{
		EventID:   fmt.Sprintf("search-%s", time.Now().Format("20060102-150405")),
		Timestamp: time.Now().UTC().Format(time.RFC3339),
		SearchID:  searchID,
		Total:     len(processed),
		Status:    "completed",
		Metadata:  map[string]string{"formats_verified": "true"},
	}

	return s.triggerWebhook(webhookURL, payload)
}

func (s *RecordingSearcher) triggerWebhook(url string, payload ComplianceWebhookPayload) error {
	jsonData, err := json.Marshal(payload)
	if err != nil {
		return fmt.Errorf("failed to marshal webhook payload: %w", err)
	}

	req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
	if err != nil {
		return fmt.Errorf("failed to create webhook request: %w", err)
	}
	req.Header.Set("Content-Type", "application/json")

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

	if resp.StatusCode >= 400 {
		body, _ := io.ReadAll(resp.Body)
		return fmt.Errorf("webhook returned %d: %s", resp.StatusCode, string(body))
	}
	return nil
}

Step 5: Latency Tracking, Relevance Scoring & Audit Logging

Production archiving pipelines require observability. This step tracks request duration, calculates a baseline relevance score based on result density, and writes structured audit logs for governance compliance.

package searcher

import (
	"encoding/json"
	"fmt"
	"log"
	"os"
	"time"
)

type AuditLogEntry struct {
	Timestamp string  `json:"timestamp"`
	SearchID  string  `json:"search_id"`
	UserID    string  `json:"user_id"`
	Query     string  `json:"query"`
	FromTime  string  `json:"from_time"`
	ToTime    string  `json:"to_time"`
	LatencyMs float64 `json:"latency_ms"`
	Total     int     `json:"total"`
	Relevance float64 `json:"relevance_score"`
}

func (s *RecordingSearcher) RunSearch(token string, from, to time.Time, maxResults int, searchID string) error {
	start := time.Now()

	if err := ValidateTimeRange(from, to); err != nil {
		return fmt.Errorf("validation failed: %w", err)
	}
	if err := VerifyScopes(token, "architect:recordings:view"); err != nil {
		return fmt.Errorf("scope verification failed: %w", err)
	}

	payload, err := BuildSearchPayload(from, to, maxResults)
	if err != nil {
		return fmt.Errorf("payload construction failed: %w", err)
	}

	items, err := s.ExecuteQuery(token, payload)
	if err != nil {
		return fmt.Errorf("query execution failed: %w", err)
	}

	latency := time.Since(start).Seconds() * 1000
	durationHours := to.Sub(from).Hours()
	relevance := 0.0
	if durationHours > 0 {
		relevance = float64(len(items)) / durationHours
	}

	entry := AuditLogEntry{
		Timestamp: time.Now().UTC().Format(time.RFC3339),
		SearchID:  searchID,
		UserID:    "system-archiver",
		Query:     payload.Query,
		FromTime:  from.UTC().Format(time.RFC3339),
		ToTime:    to.UTC().Format(time.RFC3339),
		LatencyMs: latency,
		Total:     len(items),
		Relevance: relevance,
	}

	logEntry, _ := json.Marshal(entry)
	fmt.Fprintf(os.Stdout, "AUDIT: %s\n", string(logEntry))

	webhookURL := os.Getenv("COMPLIANCE_WEBHOOK_URL")
	if webhookURL != "" {
		if err := s.ProcessResults(items, webhookURL, searchID); err != nil {
			log.Printf("Webhook sync failed: %v", err)
		}
	}

	fmt.Printf("Search completed. Found %d recordings in %.2fms.\n", len(items), latency)
	return nil
}

Complete Working Example

The following module combines all components into a single executable package. Replace the placeholder credentials and environment variables to run.

package main

import (
	"fmt"
	"os"
	"time"

	"myapp/auth"
	"myapp/searcher"
)

func main() {
	region := os.Getenv("GENESYS_REGION")
	if region == "" {
		region = "mypurecloud.com"
	}
	clientID := os.Getenv("GENESYS_CLIENT_ID")
	clientSecret := os.Getenv("GENESYS_CLIENT_SECRET")

	if clientID == "" || clientSecret == "" {
		fmt.Println("GENESYS_CLIENT_ID and GENESYS_CLIENT_SECRET must be set")
		os.Exit(1)
	}

	oauth := auth.NewOAuthClient(region, clientID, clientSecret)
	token, err := oauth.GetToken()
	if err != nil {
		fmt.Printf("Authentication failed: %v\n", err)
		os.Exit(1)
	}

	searcherClient := searcher.NewRecordingSearcher(region)

	now := time.Now().UTC()
	from := now.Add(-24 * time.Hour)
	to := now
	maxResults := 100
	searchID := "archival-scan-001"

	if err := searcherClient.RunSearch(token, from, to, maxResults, searchID); err != nil {
		fmt.Printf("Search pipeline failed: %v\n", err)
		os.Exit(1)
	}
}

Common Errors & Debugging

Error: HTTP 401 Unauthorized

• Cause: The OAuth token has expired, the client credentials are incorrect, or the token was not included in the Authorization header.
• Fix: Verify GENESYS_CLIENT_ID and GENESYS_CLIENT_SECRET. Ensure the auth.NewOAuthClient instance calls GetToken() before each request batch. Implement token refresh logic if the integration runs longer than 35 minutes.
• Code: The auth.OAuthClient.GetToken() method automatically refreshes when expiresAt is within 5 minutes of the current time.

Error: HTTP 403 Forbidden

• Cause: The OAuth token lacks the architect:recordings:view scope, or the user associated with the client credentials does not have organizational permissions to view recordings.
• Fix: Regenerate the OAuth client in Genesys Cloud Admin with the architect:recordings:view scope assigned. Verify the VerifyScopes function correctly parses the JWT payload.
• Code: Adjust the VerifyScopes call to match the exact scope string returned by the /oauth/token endpoint.

Error: HTTP 429 Too Many Requests

• Cause: The Archiving API enforces rate limits per tenant. Rapid pagination or concurrent search jobs trigger throttling.
• Fix: The executeWithRetry method implements exponential backoff. Increase the initial backoff duration if the tenant experiences sustained load. Throttle concurrent RunSearch calls.
• Code: Modify backoff := 1 * time.Second to backoff := 2 * time.Second in searcher.go for high-throughput environments.

Error: Payload Validation Failure

• Cause: The size parameter exceeds 2000, or the query string contains invalid date formats.
• Fix: Enforce maxResults <= 2000 before calling BuildSearchPayload. Ensure from and to times use UTC and RFC3339 formatting.
• Code: The BuildSearchPayload function explicitly returns an error when size falls outside the valid range.

Official References

• Archiving Recordings Query API
• OAuth 2.0 Client Credentials Flow
• Go SDK Reference
• Recording Metadata & Filter Syntax