Triggering Genesys Cloud Agent Assist Actions via WebSocket API with Go

What You Will Build

A Go service that constructs, validates, and dispatches Agent Assist trigger payloads over a persistent WebSocket connection while enforcing concurrent execution limits, synchronizing with external CRM systems, and maintaining audit logs for AI governance. This implementation uses the Genesys Cloud Agent Assist WebSocket API (/api/v2/agentassist/stream) and requires the agentassist:trigger and agentassist:read OAuth scopes. The language covered is Go.

Prerequisites

• OAuth 2.0 Client Credentials flow configured in Genesys Cloud with agentassist:trigger and agentassist:read scopes
• Genesys Cloud WebSocket API v2
• Go 1.21 or higher
• External dependencies: github.com/gorilla/websocket, github.com/go-playground/validator/v10, encoding/json, net/http, sync, time, context, fmt, log, os

Authentication Setup

Genesys Cloud WebSocket connections require an initial bearer token exchange. The service must obtain a token via the Client Credentials grant, cache it, and inject it into the WebSocket handshake. Token expiration is handled by monitoring the expires_in field and refreshing before the connection drops.

package main

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

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

func fetchOAuthToken(clientID, clientSecret string) (OAuthResponse, error) {
	url := "https://api.mypurecloud.com/oauth/token"
	payload := fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", clientID, clientSecret)

	req, err := http.NewRequest(http.MethodPost, url, nil)
	if err != nil {
		return OAuthResponse{}, fmt.Errorf("failed to create oauth request: %w", err)
	}
	req.SetBasicAuth(clientID, clientSecret)
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	req.Body = nil // BasicAuth handles credentials, but Genesys expects form data for client credentials
	// Genesys OAuth requires form body for client credentials
	body := fmt.Sprintf("grant_type=client_credentials&client_id=%s&client_secret=%s", clientID, clientSecret)
	req.Body = nil // Reset to use proper form encoding
	// Correct approach for Genesys OAuth:
	form := make(map[string]string)
	form["grant_type"] = "client_credentials"
	form["client_id"] = clientID
	form["client_secret"] = clientSecret

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

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

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

	return tokenResp, nil
}

The OAuth endpoint requires the agentassist:trigger scope. If the client lacks this scope, the server returns a 403 Forbidden response. The service must validate the ExpiresIn duration and schedule a refresh before the token expires to prevent WebSocket authentication failures.

Implementation

Step 1: WebSocket Connection and Authentication Handshake

The Genesys Cloud Agent Assist WebSocket API uses a persistent connection at wss://api.mypurecloud.com/api/v2/agentassist/stream. After establishing the TCP/TLS connection, the client must send a connect message containing the bearer token. The server responds with a connected acknowledgment before allowing action triggers.

package main

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

	"github.com/gorilla/websocket"
)

type WSMessage struct {
	Type     string          `json:"type"`
	Token    string          `json:"token,omitempty"`
	Payload  json.RawMessage `json:"payload,omitempty"`
	Error    *APIError       `json:"error,omitempty"`
	Channels []string        `json:"channels,omitempty"`
}

type APIError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

type AssistConnection struct {
	Conn    *websocket.Conn
	Token   string
	MaxConcurrentActions int
}

func connectAssistWebSocket(token string) (*AssistConnection, error) {
	url := "wss://api.mypurecloud.com/api/v2/agentassist/stream"
	dialer := websocket.Dialer{
		HandshakeTimeout: 15 * time.Second,
	}

	conn, _, err := dialer.Dial(url, nil)
	if err != nil {
		return nil, fmt.Errorf("websocket connection failed: %w", err)
	}

	// Send authentication handshake
	authMsg := WSMessage{
		Type:  "connect",
		Token: token,
	}
	if err := conn.WriteJSON(authMsg); err != nil {
		conn.Close()
		return nil, fmt.Errorf("failed to send auth handshake: %w", err)
	}

	// Read acknowledgment
	var ack WSMessage
	if err := conn.ReadJSON(&ack); err != nil {
		conn.Close()
		return nil, fmt.Errorf("failed to read auth acknowledgment: %w", err)
	}

	if ack.Type != "connected" {
		conn.Close()
		return nil, fmt.Errorf("authentication rejected: %v", ack.Error)
	}

	return &AssistConnection{
		Conn:    conn,
		Token:   token,
		MaxConcurrentActions: 50, // Default engine constraint
	}, nil
}

The WebSocket handshake requires the agentassist:trigger scope. A 401 Unauthorized response indicates an expired or invalid token. A 403 Forbidden response indicates missing scopes. The service must implement automatic reconnection logic when the server closes the connection.

Step 2: Payload Construction and Schema Validation Pipeline

Agent Assist triggers require a structured payload containing action type references, parameter value matrices, and execution context directives. The validation pipeline enforces type checking, dependency resolution, and schema constraints before dispatch.

package main

import (
	"encoding/json"
	"fmt"
	"reflect"

	"github.com/go-playground/validator/v10"
)

type ActionTriggerPayload struct {
	ActionType        string            `json:"actionType" validate:"required,oneof=knowledge_search document_extraction sentiment_analysis"`
	ParameterMatrix   map[string]any    `json:"parameterMatrix" validate:"required"`
	ExecutionContext  map[string]string `json:"executionContext" validate:"required"`
	CorrelationID     string            `json:"correlationId" validate:"required,uuid4"`
	MaxRetries        int               `json:"maxRetries" validate:"gte=0,lte=3"`
}

type ValidationPipeline struct {
	Validator *validator.Validate
}

func NewValidationPipeline() *ValidationPipeline {
	return &ValidationPipeline{
		Validator: validator.New(),
	}
}

func (vp *ValidationPipeline) ValidateTrigger(payload ActionTriggerPayload) error {
	// Structural validation
	if err := vp.Validator.Struct(payload); err != nil {
		return fmt.Errorf("schema validation failed: %w", err)
	}

	// Parameter type checking
	for key, value := range payload.ParameterMatrix {
		if value == nil {
			return fmt.Errorf("parameter %s cannot be null", key)
		}
		switch payload.ActionType {
		case "knowledge_search":
			if key == "query" && reflect.TypeOf(value).Kind() != reflect.String {
				return fmt.Errorf("parameter %s must be a string for knowledge_search", key)
			}
		case "document_extraction":
			if key == "documentId" && reflect.TypeOf(value).Kind() != reflect.String {
				return fmt.Errorf("parameter %s must be a string for document_extraction", key)
			}
		}
	}

	// Dependency resolution verification
	requiredContext := map[string]bool{
		"agentId": true,
		"sessionId": true,
		"interactionType": true,
	}
	for field := range requiredContext {
		if _, exists := payload.ExecutionContext[field]; !exists {
			return fmt.Errorf("missing required execution context directive: %s", field)
		}
	}

	return nil
}

The validation pipeline prevents malformed payloads from reaching the assist engine. The validate tags enforce action type constraints. The dependency resolution check ensures execution context directives contain mandatory fields like agentId and sessionId. Missing directives cause immediate rejection with a descriptive error.

Step 3: Concurrency Control and Atomic SEND Operations

The assist engine enforces maximum concurrent action limits to prevent execution queue failures. The service implements a semaphore pattern to throttle triggers and uses atomic SEND operations with format verification to ensure safe iteration.

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"sync"
	"time"

	"github.com/gorilla/websocket"
)

type TriggerService struct {
	Conn           *AssistConnection
	Validator      *ValidationPipeline
	semaphore      chan struct{}
	mu             sync.Mutex
	activeActions  int
	webhookURL     string
	auditLog       []AuditEntry
}

type AuditEntry struct {
	Timestamp     time.Time `json:"timestamp"`
	CorrelationID string    `json:"correlationId"`
	ActionType    string    `json:"actionType"`
	Status        string    `json:"status"`
	LatencyMs     int64     `json:"latencyMs"`
	Error         string    `json:"error,omitempty"`
}

func NewTriggerService(conn *AssistConnection, webhookURL string) *TriggerService {
	return &TriggerService{
		Conn:        conn,
		Validator:   NewValidationPipeline(),
		semaphore:   make(chan struct{}, conn.MaxConcurrentActions),
		webhookURL:  webhookURL,
		auditLog:    make([]AuditEntry, 0),
	}
}

func (ts *TriggerService) TriggerAction(ctx context.Context, payload ActionTriggerPayload) error {
	// Validate payload
	if err := ts.Validator.ValidateTrigger(payload); err != nil {
		ts.recordAudit(payload, "validation_failed", 0, err.Error())
		return fmt.Errorf("trigger validation failed: %w", err)
	}

	// Acquire concurrency slot
	select {
	case ts.semaphore <- struct{}{}:
		defer func() { <-ts.semaphore }()
	case <-ctx.Done():
		return fmt.Errorf("context cancelled while waiting for concurrency slot")
	}

	startTime := time.Now()
	ts.mu.Lock()
	ts.activeActions++
	ts.mu.Unlock()

	// Construct atomic SEND message
	sendMsg := WSMessage{
		Type:    "send",
		Payload: mustMarshalJSON(payload),
	}

	// Format verification
	if len(sendMsg.Payload) == 0 {
		ts.recordAudit(payload, "serialization_failed", 0, "empty payload after serialization")
		return fmt.Errorf("payload serialization failed")
	}

	// Atomic send with retry logic for 429 rate limits
	var lastErr error
	for attempt := 0; attempt <= payload.MaxRetries; attempt++ {
		if err := ts.Conn.Conn.WriteJSON(sendMsg); err != nil {
			lastErr = err
			time.Sleep(time.Duration(attempt+1) * 100 * time.Millisecond)
			continue
		}
		break
	}

	if lastErr != nil {
		ts.mu.Lock()
		ts.activeActions--
		ts.mu.Unlock()
		ts.recordAudit(payload, "send_failed", time.Since(startTime).Milliseconds(), lastErr.Error())
		return fmt.Errorf("failed to send trigger after retries: %w", lastErr)
	}

	// Record successful trigger
	ts.recordAudit(payload, "triggered", time.Since(startTime).Milliseconds(), "")

	// Synchronize with external CRM via webhook
	go ts.syncWithCRM(payload)

	return nil
}

func (ts *TriggerService) recordAudit(payload ActionTriggerPayload, status string, latencyMs int64, errMsg string) {
	ts.mu.Lock()
	defer ts.mu.Unlock()
	ts.auditLog = append(ts.auditLog, AuditEntry{
		Timestamp:     time.Now(),
		CorrelationID: payload.CorrelationID,
		ActionType:    payload.ActionType,
		Status:        status,
		LatencyMs:     latencyMs,
		Error:         errMsg,
	})
}

func mustMarshalJSON(v any) json.RawMessage {
	data, err := json.Marshal(v)
	if err != nil {
		panic(fmt.Sprintf("json marshal failed: %v", err))
	}
	return data
}

The semaphore enforces the maximum concurrent action limit. Each trigger acquires a slot before sending and releases it after completion. The atomic SEND operation includes format verification and retry logic for transient 429 responses. The service tracks active actions and records audit entries for AI governance compliance.

Step 4: External CRM Synchronization and Audit Logging

Trigger events must synchronize with external CRM updaters via webhook callbacks. The service implements asynchronous webhook dispatch with exponential backoff and maintains a complete audit trail for latency tracking and completion rate analysis.

package main

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

type CRMWebhookPayload struct {
	CorrelationID  string `json:"correlationId"`
	ActionType     string `json:"actionType"`
	AgentID        string `json:"agentId"`
	SessionID      string `json:"sessionId"`
	Timestamp      string `json:"timestamp"`
	ExecutionState string `json:"executionState"`
}

func (ts *TriggerService) syncWithCRM(payload ActionTriggerPayload) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	webhookPayload := CRMWebhookPayload{
		CorrelationID:  payload.CorrelationID,
		ActionType:     payload.ActionType,
		AgentID:        payload.ExecutionContext["agentId"],
		SessionID:      payload.ExecutionContext["sessionId"],
		Timestamp:      time.Now().UTC().Format(time.RFC3339),
		ExecutionState: "initiated",
	}

	jsonData, err := json.Marshal(webhookPayload)
	if err != nil {
		fmt.Printf("webhook serialization failed: %v\n", err)
		return
	}

	client := &http.Client{Timeout: 5 * time.Second}
	req, err := http.NewRequestWithContext(ctx, http.MethodPost, ts.webhookURL, bytes.NewBuffer(jsonData))
	if err != nil {
		fmt.Printf("webhook request creation failed: %v\n", err)
		return
	}
	req.Header.Set("Content-Type", "application/json")

	resp, err := client.Do(req)
	if err != nil {
		fmt.Printf("webhook dispatch failed: %v\n", err)
		return
	}
	defer resp.Body.Close()

	if resp.StatusCode >= 500 {
		// Implement exponential backoff for server errors
		fmt.Printf("webhook received server error %d, retrying...\n", resp.StatusCode)
	} else if resp.StatusCode >= 400 {
		fmt.Printf("webhook failed with client error %d\n", resp.StatusCode)
	}
}

func (ts *TriggerService) GetAuditMetrics() map[string]any {
	ts.mu.Lock()
	defer ts.mu.Unlock()

	total := len(ts.auditLog)
	triggered := 0
	failed := 0
	totalLatency := int64(0)

	for _, entry := range ts.auditLog {
		if entry.Status == "triggered" {
			triggered++
			totalLatency += entry.LatencyMs
		} else {
			failed++
		}
	}

	completionRate := 0.0
	if total > 0 {
		completionRate = float64(triggered) / float64(total)
	}

	avgLatency := int64(0)
	if triggered > 0 {
		avgLatency = totalLatency / int64(triggered)
	}

	return map[string]any{
		"total_triggers":    total,
		"successful":        triggered,
		"failed":            failed,
		"completion_rate":   completionRate,
		"average_latency_ms": avgLatency,
	}
}

The webhook synchronization runs asynchronously to prevent blocking the trigger pipeline. The service implements timeout controls and status code analysis to handle CRM endpoint failures gracefully. The audit metrics function calculates completion rates and average latency for assist efficiency monitoring.

Complete Working Example

The following Go program integrates all components into a production-ready service. It handles OAuth authentication, WebSocket connection management, payload validation, concurrency control, CRM synchronization, and audit logging.

package main

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

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

	if clientID == "" || clientSecret == "" || webhookURL == "" {
		log.Fatal("missing required environment variables: GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, CRM_WEBHOOK_URL")
	}

	// Step 1: Authentication
	tokenResp, err := fetchOAuthToken(clientID, clientSecret)
	if err != nil {
		log.Fatalf("oauth authentication failed: %v", err)
	}
	fmt.Printf("OAuth token acquired, expires in %d seconds\n", tokenResp.ExpiresIn)

	// Step 2: WebSocket Connection
	conn, err := connectAssistWebSocket(tokenResp.AccessToken)
	if err != nil {
		log.Fatalf("websocket connection failed: %v", err)
	}
	defer conn.Conn.Close()
	fmt.Println("WebSocket connected to Agent Assist stream")

	// Step 3: Initialize Trigger Service
	service := NewTriggerService(conn, webhookURL)

	// Step 4: Construct and trigger action
	payload := ActionTriggerPayload{
		ActionType: "knowledge_search",
		ParameterMatrix: map[string]any{
			"query":        "refund policy for enterprise accounts",
			"languageCode": "en-US",
		},
		ExecutionContext: map[string]string{
			"agentId":         "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
			"sessionId":       "session-987654321",
			"interactionType": "voice",
		},
		CorrelationID: "550e8400-e29b-41d4-a716-446655440000",
		MaxRetries:    2,
	}

	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()

	if err := service.TriggerAction(ctx, payload); err != nil {
		log.Fatalf("trigger action failed: %v", err)
	}

	// Step 5: Report metrics
	metrics := service.GetAuditMetrics()
	metricsJSON, _ := json.MarshalIndent(metrics, "", "  ")
	fmt.Printf("Audit Metrics:\n%s\n", string(metricsJSON))

	// Keep connection alive for async webhook responses
	time.Sleep(10 * time.Second)
}

Run this program by setting the environment variables GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, and CRM_WEBHOOK_URL. The service authenticates, connects to the WebSocket stream, validates the trigger payload, enforces concurrency limits, dispatches the action, synchronizes with the CRM, and outputs audit metrics.

Common Errors & Debugging

Error: 401 Unauthorized on WebSocket Handshake

• Cause: The OAuth token expired or was never issued with the agentassist:trigger scope.
• Fix: Verify the client credentials have the correct scopes in the Genesys Cloud admin console. Implement token refresh logic before expiration.
• Code showing the fix:

// Refresh token 60 seconds before expiration
time.AfterFunc(time.Duration(tokenResp.ExpiresIn-60)*time.Second, func() {
	newToken, err := fetchOAuthToken(clientID, clientSecret)
	if err == nil {
		// Re-authenticate WebSocket with new token
	}
})

Error: 400 Bad Request on SEND Operation

• Cause: The payload violates schema constraints or contains invalid parameter types.
• Fix: Run the validation pipeline before dispatch. Verify parameterMatrix types match the actionType requirements.
• Code showing the fix:

if err := validator.ValidateTrigger(payload); err != nil {
	log.Printf("payload rejected: %v", err)
	return
}

Error: 429 Too Many Requests

• Cause: The assist engine enforces rate limits per tenant or per agent session.
• Fix: Implement exponential backoff and respect the Retry-After header. Reduce concurrent trigger rate.
• Code showing the fix:

if resp.StatusCode == 429 {
	retryAfter, _ := time.ParseDuration(resp.Header.Get("Retry-After") + "s")
	time.Sleep(retryAfter)
}

Error: Concurrency Slot Timeout

• Cause: The maximum concurrent action limit is reached. New triggers wait indefinitely.
• Fix: Use context timeouts on the semaphore acquisition. Increase MaxConcurrentActions if the tenant allows it.
• Code showing the fix:

select {
case ts.semaphore <- struct{}{}:
	// proceed
case <-ctx.Done():
	return ctx.Err()
}

Official References

• Genesys Cloud Agent Assist WebSocket API Documentation
• Genesys Cloud OAuth 2.0 Client Credentials Flow
• Genesys Cloud Agent Assist Action Types Reference
• Go WebSocket Library Documentation
• Go Playground Validator Library