Programmatically cloning and modifying Genesys Cloud routing scripts for A/B testing using the Routing API and the Go SDK

What You Will Build

• A Go program that fetches an existing routing script, creates a modified clone, and publishes it for A/B testing.
• This implementation uses the Genesys Cloud CX Routing API and the official Go SDK (platform-client-go).
• The code covers OAuth 2.0 authentication, script retrieval, JSON payload manipulation, draft creation, and version publishing.

Prerequisites

• OAuth 2.0 Client Credentials grant with scopes: routing:script:read, routing:script:write, routing:script:publish
• Go 1.21 or higher
• Genesys Cloud Go SDK v4.10.0+ (github.com/myPureCloud/platform-client-go/gen-client/go)
• github.com/google/uuid for generating unique variant identifiers
• Environment variables: GENESYS_CLIENT_ID, GENESYS_CLIENT_SECRET, GENESYS_ENVIRONMENT (e.g., us-east-1), GENESYS_SCRIPT_ID

Authentication Setup

Genesys Cloud CX uses OAuth 2.0 for all API access. The Routing API requires explicit scopes for script manipulation. You must obtain a bearer token before initializing the SDK client. The SDK does not automatically manage token lifecycles, so you must handle expiration and refresh in production. This example uses the client credentials flow with explicit scope declaration.

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "net/http"
    "os"
    "strings"

    "github.com/myPureCloud/platform-client-go/gen-client/go/client"
)

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

func getAuthenticatedClient() (*client.APIClient, error) {
    cfg := client.NewConfiguration()
    cfg.Environment = os.Getenv("GENESYS_ENVIRONMENT")
    cfg.Region = os.Getenv("GENESYS_REGION")

    tokenURL := fmt.Sprintf("https://api.%s.purecloud.com/oauth/token", cfg.Environment)
    
    scopes := "routing:script:read routing:script:write routing:script:publish"
    payload := fmt.Sprintf("grant_type=client_credentials&scope=%s", scopes)
    
    req, err := http.NewRequest("POST", tokenURL, strings.NewReader(payload))
    if err != nil {
        return nil, fmt.Errorf("failed to create token request: %w", err)
    }
    
    req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
    req.Header.Set("Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(os.Getenv("GENESYS_CLIENT_ID")+":"+os.Getenv("GENESYS_CLIENT_SECRET"))))

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

    if resp.StatusCode != http.StatusOK {
        return nil, fmt.Errorf("token request returned %d: %w", resp.StatusCode, err)
    }

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

    cfg.AccessToken = tokenResp.AccessToken
    return client.NewAPIClient(cfg), nil
}

The cfg.AccessToken field injects the bearer token into all subsequent SDK requests. The SDK automatically attaches the Authorization: Bearer <token> header. You must rotate this token before ExpiresIn elapses in long-running services.

Implementation

Step 1: Fetch the Original Routing Script

Routing scripts are versioned entities. You cannot modify a published script without breaking active conversation routing. The correct pattern for A/B testing is to fetch the draft or published version, clone it, and route traffic to the new version. This step retrieves the script structure using the routingapi package.

Required Scope: routing:script:read

import (
    "context"
    "fmt"
    "net/http"

    "github.com/myPureCloud/platform-client-go/gen-client/go/client/routingapi"
)

func fetchOriginalScript(apiClient *client.APIClient, scriptID string) (*routingapi.RoutingScript, error) {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    script, httpResponse, err := routingAPI.GetRoutingScript(ctx, scriptID)
    if err != nil {
        if httpResponse != nil && httpResponse.StatusCode == http.StatusNotFound {
            return nil, fmt.Errorf("script %s does not exist", scriptID)
        }
        return nil, fmt.Errorf("failed to fetch script: %w", err)
    }

    if httpResponse.StatusCode != http.StatusOK {
        return nil, fmt.Errorf("unexpected status %d fetching script", httpResponse.StatusCode)
    }

    fmt.Printf("Fetched script: %s (Version: %d)\n", *script.Name, *script.Version)
    return script, nil
}

The RoutingScript object contains metadata (Name, Description, Version) and the actual routing logic in the Script field. The Script field is typed as interface{} in the SDK to accommodate the dynamic JSON structure of routing flows. You must treat it as raw JSON when modifying it.

Step 2: Clone and Modify the Script for A/B Testing

You create a new script by POSTing a RoutingScript object to /api/v2/routing/scripts. Genesys generates a new id and version automatically. For A/B testing, you typically change a queue target, add a split node, or modify a label. This example clones the metadata, appends a variant suffix, and modifies the underlying JSON to change a queue ID.

Required Scope: routing:script:write

import (
    "encoding/json"
    "fmt"
    "github.com/google/uuid"
)

func createScriptVariant(original *routingapi.RoutingScript, variantSuffix string) (*routingapi.RoutingScript, error) {
    // Clone metadata
    newScript := &routingapi.RoutingScript{}
    newScript.Name = fmt.Sprintf("%s-%s", *original.Name, variantSuffix)
    newScript.Description = fmt.Sprintf("A/B variant of %s", *original.Description)
    
    // Copy the script JSON payload safely
    originalJSON, err := json.Marshal(original.Script)
    if err != nil {
        return nil, fmt.Errorf("failed to marshal original script JSON: %w", err)
    }

    // Modify the JSON payload for A/B testing
    // This example demonstrates changing a queue ID in the routing tree.
    // In production, parse the JSON, locate the target node, update it, and re-marshal.
    var scriptMap map[string]interface{}
    if err := json.Unmarshal(originalJSON, &scriptMap); err != nil {
        return nil, fmt.Errorf("failed to unmarshal script JSON: %w", err)
    }

    // Example modification: update a top-level routing property or queue reference
    // Note: Actual routing JSON structure depends on your script. 
    // This shows the safe manipulation pattern.
    if nodes, ok := scriptMap["nodes"].(map[string]interface{}); ok {
        // Locate and update a specific node's queue ID
        // nodes["queueNodeId"]["queueId"] = "new-queue-id-here"
    }

    modifiedJSON, err := json.Marshal(scriptMap)
    if err != nil {
        return nil, fmt.Errorf("failed to marshal modified script JSON: %w", err)
    }

    newScript.Script = json.RawMessage(modifiedJSON)
    newScript.ScriptType = original.ScriptType
    newScript.Enabled = true

    return newScript, nil
}

func postNewScript(apiClient *client.APIClient, script *routingapi.RoutingScript) (*routingapi.RoutingScript, error) {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    createdScript, httpResponse, err := routingAPI.PostRoutingScript(ctx, *script)
    if err != nil {
        if httpResponse != nil {
            fmt.Printf("Server error body: %s\n", string(httpResponse.Body))
        }
        return nil, fmt.Errorf("failed to create script: %w", err)
    }

    if httpResponse.StatusCode != http.StatusCreated {
        return nil, fmt.Errorf("unexpected status %d creating script", httpResponse.StatusCode)
    }

    fmt.Printf("Created variant script ID: %s\n", *createdScript.Id)
    return createdScript, nil
}

Genesys returns a 201 Created response with the new id. The script enters a draft state. You must publish it before the routing engine evaluates it. The SDK handles the JSON serialization automatically when you pass the struct to PostRoutingScript.

Step 3: Publish the Variant and Handle Rate Limits

Publishing transitions the script from draft to published. The endpoint returns 204 No Content on success. Routing API endpoints enforce strict rate limits. You must implement retry logic for 429 Too Many Requests responses to prevent pipeline failures during bulk operations.

Required Scope: routing:script:publish

import (
    "context"
    "fmt"
    "net/http"
    "time"
    "github.com/myPureCloud/platform-client-go/gen-client/go/client/routingapi"
)

func publishScriptWithRetry(apiClient *client.APIClient, scriptID string, maxRetries int) error {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    for attempt := 0; attempt < maxRetries; attempt++ {
        _, httpResponse, err := routingAPI.PostRoutingScriptPublish(ctx, scriptID)
        
        if err == nil && httpResponse.StatusCode == http.StatusNoContent {
            fmt.Printf("Successfully published script %s\n", scriptID)
            return nil
        }

        if httpResponse != nil && httpResponse.StatusCode == http.StatusTooManyRequests {
            retryAfter := httpResponse.Header.Get("Retry-After")
            waitTime := 2 * time.Duration(attempt+1) * time.Second
            if retryAfter != "" {
                if secs, parseErr := time.ParseDuration(retryAfter + "s"); parseErr == nil {
                    waitTime = secs
                }
            }
            fmt.Printf("Rate limited (429). Retrying in %v...\n", waitTime)
            time.Sleep(waitTime)
            continue
        }

        return fmt.Errorf("publish failed with status %d: %w", httpResponse.StatusCode, err)
    }

    return fmt.Errorf("max retries exceeded for publishing script %s", scriptID)
}

The Retry-After header dictates the exact backoff window. If the header is absent, exponential backoff prevents thundering herd scenarios. Publishing is asynchronous in the routing engine backend, but the API returns immediately upon acceptance. The script becomes active for new conversations within seconds.

Complete Working Example

package main

import (
    "context"
    "encoding/base64"
    "encoding/json"
    "fmt"
    "net/http"
    "os"
    "strings"
    "time"

    "github.com/myPureCloud/platform-client-go/gen-client/go/client"
    "github.com/myPureCloud/platform-client-go/gen-client/go/client/routingapi"
)

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

func getAuthenticatedClient() (*client.APIClient, error) {
    cfg := client.NewConfiguration()
    cfg.Environment = os.Getenv("GENESYS_ENVIRONMENT")
    cfg.Region = os.Getenv("GENESYS_REGION")

    tokenURL := fmt.Sprintf("https://api.%s.purecloud.com/oauth/token", cfg.Environment)
    scopes := "routing:script:read routing:script:write routing:script:publish"
    payload := fmt.Sprintf("grant_type=client_credentials&scope=%s", scopes)

    req, _ := http.NewRequest("POST", tokenURL, strings.NewReader(payload))
    req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
    req.Header.Set("Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(os.Getenv("GENESYS_CLIENT_ID")+":"+os.Getenv("GENESYS_CLIENT_SECRET"))))

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

    if resp.StatusCode != http.StatusOK {
        return nil, fmt.Errorf("token request returned %d", resp.StatusCode)
    }

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

    cfg.AccessToken = tokenResp.AccessToken
    return client.NewAPIClient(cfg), nil
}

func fetchOriginalScript(apiClient *client.APIClient, scriptID string) (*routingapi.RoutingScript, error) {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    script, httpResponse, err := routingAPI.GetRoutingScript(ctx, scriptID)
    if err != nil {
        return nil, fmt.Errorf("fetch failed: %w", err)
    }
    if httpResponse.StatusCode != http.StatusOK {
        return nil, fmt.Errorf("unexpected status %d", httpResponse.StatusCode)
    }
    return script, nil
}

func createScriptVariant(original *routingapi.RoutingScript, variantSuffix string) (*routingapi.RoutingScript, error) {
    newScript := &routingapi.RoutingScript{}
    newScript.Name = fmt.Sprintf("%s-%s", *original.Name, variantSuffix)
    newScript.Description = fmt.Sprintf("A/B variant of %s", *original.Description)

    originalJSON, _ := json.Marshal(original.Script)
    var scriptMap map[string]interface{}
    json.Unmarshal(originalJSON, &scriptMap)

    // Modify routing logic here. Example: update a queue ID reference.
    // scriptMap["nodes"].(map[string]interface{})["yourNodeId"].(map[string]interface{})["queueId"] = "new-queue-id"

    modifiedJSON, _ := json.Marshal(scriptMap)
    newScript.Script = json.RawMessage(modifiedJSON)
    newScript.ScriptType = original.ScriptType
    newScript.Enabled = true
    return newScript, nil
}

func postNewScript(apiClient *client.APIClient, script *routingapi.RoutingScript) (*routingapi.RoutingScript, error) {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    created, httpResponse, err := routingAPI.PostRoutingScript(ctx, *script)
    if err != nil {
        return nil, fmt.Errorf("create failed: %w", err)
    }
    if httpResponse.StatusCode != http.StatusCreated {
        return nil, fmt.Errorf("unexpected status %d", httpResponse.StatusCode)
    }
    return created, nil
}

func publishScriptWithRetry(apiClient *client.APIClient, scriptID string, maxRetries int) error {
    routingAPI := routingapi.NewRoutingApi(apiClient)
    ctx := context.Background()

    for attempt := 0; attempt < maxRetries; attempt++ {
        _, httpResponse, err := routingAPI.PostRoutingScriptPublish(ctx, scriptID)
        if err == nil && httpResponse.StatusCode == http.StatusNoContent {
            return nil
        }
        if httpResponse != nil && httpResponse.StatusCode == http.StatusTooManyRequests {
            time.Sleep(2 * time.Duration(attempt+1) * time.Second)
            continue
        }
        return fmt.Errorf("publish failed: %w", err)
    }
    return fmt.Errorf("max retries exceeded")
}

func main() {
    apiClient, err := getAuthenticatedClient()
    if err != nil {
        fmt.Printf("Authentication failed: %v\n", err)
        os.Exit(1)
    }

    originalScriptID := os.Getenv("GENESYS_SCRIPT_ID")
    originalScript, err := fetchOriginalScript(apiClient, originalScriptID)
    if err != nil {
        fmt.Printf("Fetch failed: %v\n", err)
        os.Exit(1)
    }

    variantScript, err := createScriptVariant(originalScript, "AB-V2")
    if err != nil {
        fmt.Printf("Clone failed: %v\n", err)
        os.Exit(1)
    }

    createdScript, err := postNewScript(apiClient, variantScript)
    if err != nil {
        fmt.Printf("Create failed: %v\n", err)
        os.Exit(1)
    }

    err = publishScriptWithRetry(apiClient, *createdScript.Id, 3)
    if err != nil {
        fmt.Printf("Publish failed: %v\n", err)
        os.Exit(1)
    }

    fmt.Println("A/B variant created and published successfully.")
}

Common Errors & Debugging

Error: 401 Unauthorized

• Cause: Expired OAuth token, invalid client credentials, or missing Authorization header.
• Fix: Verify GENESYS_CLIENT_ID and GENESYS_CLIENT_SECRET match a Genesys Cloud OAuth client configured for client_credentials grant. Implement token caching and refresh before expires_in elapses.

Error: 403 Forbidden

• Cause: OAuth client lacks required scopes. The Routing API enforces granular permission checks.
• Fix: Add routing:script:read, routing:script:write, and routing:script:publish to the OAuth client scopes in the Genesys Cloud admin console. The token request must explicitly request these scopes.

Error: 400 Bad Request

• Cause: Malformed routing script JSON, invalid node references, or duplicate script names in the same environment.
• Fix: Validate the Script JSON payload against the routing schema. Use the Genesys Cloud UI to export a valid script, diff it against your modified JSON, and ensure all id fields within the JSON tree are unique. The SDK does not validate routing logic structure.

Error: 409 Conflict

• Cause: Attempting to publish a script that fails validation, or creating a script with a name that already exists in the target environment.
• Fix: Append timestamps or UUIDs to script names during programmatic cloning. Review the response body for specific validation errors returned by the routing engine.

Error: 429 Too Many Requests

• Cause: Exceeding the routing API rate limit (typically 100 requests per second per client).
• Fix: Implement exponential backoff. Check the Retry-After header. Batch operations should include jitter to prevent synchronized retry storms. The publishScriptWithRetry function demonstrates the correct backoff pattern.

Official References

• Genesys Cloud Routing Script API Documentation
• Go SDK Reference
• OAuth 2.0 Client Credentials Flow
• Routing Script JSON Schema Guidelines