# Code Node JavaScript API reference In this guide, you'll learn how to use the powerful JavaScript API available within Code nodes to programmatically interact with RightMessage segmentation data, visitor context, and ESP/CRM integrations. Overview Code nodes in the Flow Builder expose a special RM object that gives you programmatic access to visitor data, segmentation, custom fields, tags, and more. This API allows power users to: - Display personalized content based on segmentation data - Transform and manipulate visitor data - Integrate with third-party analytics and tracking tools - Implement custom business logic within flows - Sync data bidirectionally with your ESP/CRM Who this is for: The Code Node API is designed for power users and developers comfortable with JavaScript. You'll need edit access to flows and basic understanding of JavaScript syntax. Prerequisites Before using the Code Node API, ensure you have: - Edit access to flows in RightMessage - Basic JavaScript knowledge - An active ESP/CRM integration (required for custom field and tag operations) - Understanding of your segmentation structure (dimensions and segments) How Code nodes work When a Code node executes in your Flow: 1. RightMessage creates the RM API object with access to current visitor context 2. Your JavaScript code runs with the RM object available 3. If your code returns a string or DOM element, it displays in the widget 4. Any data changes sync back to your ESP/CRM automatically Pro tip: Use your browser's developer console to debug Code nodes. The API logs helpful messages prefixed with [RM] to assist with troubleshooting. API Methods Variables Variables let you store temporary data during a visitor's session or for longer periods. RM.getVariable(name) Retrieve a variable value by name. // Get a stored variable const visitCount = RM.getVariable('visit_count'); // Returns null if not found or expired if (visitCount === null) { console.log('Variable not found or expired'); } Parameters: - name (string) - The variable name Returns: The variable value, or null if not found or expired RM.setVariable(name, value, options) Store a variable with optional expiration. // Store a variable that expires in 7 days RM.setVariable('last_quiz_completed', 'onboarding-quiz', { expiresType: 'duration', expiresDuration: 7, expiresUnit: 'days' }); // Store a variable without expiration RM.setVariable('user_preference', 'dark_mode'); Parameters: - name (string) - The variable name - value (any) - The value to store - options (object, optional) - Configuration object: - expiresType - Set to 'duration' to enable expiration - expiresDuration - Number of units until expiration - expiresUnit - 'minutes', 'hours', 'days', or 'weeks' Scores Scores allow you to track numerical values like engagement level, product interest, or lead quality. RM.getScore(scoreName) Retrieve the current value of a score. // Get current engagement score const engagementScore = RM.getScore('engagement'); console.log(`Current engagement: ${engagementScore}`); // Returns 0 if score doesn't exist Parameters: - scoreName (string) - The score name Returns: The score value (number), or 0 if not found RM.adjustScore(scoreName, amount) Increase or decrease a score by a specific amount. // Increase engagement score RM.adjustScore('engagement', 10); // Decrease score (use negative number) RM.adjustScore('engagement', -5); // Track product interest RM.adjustScore('product_interest_premium', 15); Parameters: - scoreName (string) - The score name - amount (number) - Amount to adjust (positive or negative) Use case: Adjust scores based on page visits (e.g., +10 for visiting pricing page) or content engagement to build dynamic lead scoring systems. Questions and Inputs Access and modify answers to questions asked in your flows. RM.getInput(questionIdOrText) Get a visitor's answer to a specific question. // Get by question ID const role = RM.getInput('qst_abc123'); // Get by question text const businessType = RM.getInput('What type of business do you run?'); console.log(`User's role: ${role}`); Parameters: - questionIdOrText (string) - Question ID or the exact question text Returns: The answer value, or undefined if not answered RM.setInput(questionIdOrText, value) Set or override a visitor's answer to a question. // Set an answer programmatically RM.setInput('qst_abc123', 'Enterprise'); // Override based on logic if (employeeCount > 50) { RM.setInput('Company size', 'Large'); } Parameters: - questionIdOrText (string) - Question ID or question text - value (string) - The answer value to set Segmentation Programmatically manage visitor segments. RM.getSegments() Get an array of all currently active segment IDs for the visitor. // Get all active segments const activeSegments = RM.getSegments(); console.log('Active segments:', activeSegments); // Example output: ['seg_abc123', 'seg_def456'] // Check if visitor is in a specific segment if (activeSegments.includes('seg_premium_customer')) { // Show premium content } Returns: Array of segment IDs RM.addSegment(dimensionOrSegmentId, segmentIdentifier) Assign a visitor to a segment. // Method 1: Using segment ID directly RM.addSegment('seg_abc123'); // Method 2: Using dimension name + segment name RM.addSegment('Job Role', 'Marketing Manager'); // Method 3: Using dimension ID + segment ID RM.addSegment('dim_xyz789', 'seg_abc123'); Parameters: - dimensionOrSegmentId (string) - Segment ID (when used alone) or dimension name/ID (when used with second parameter) - segmentIdentifier (string, optional) - Segment name or ID Ambiguous names: If segment names aren't unique across dimensions, specify the dimension name to avoid ambiguity. The API will warn you if multiple segments are found. RM.removeSegment(dimensionOrSegmentId, segmentIdentifier) Remove a visitor from a segment. // Remove by segment ID RM.removeSegment('seg_trial_user'); // Remove by dimension + segment name RM.removeSegment('Subscription Status', 'Trial'); Parameters: - dimensionOrSegmentId (string) - Segment ID or dimension name/ID - segmentIdentifier (string, optional) - Segment name or ID Custom Fields (ESP/CRM Integration) Read and write custom field data from your connected email platform or CRM. Integration required: Custom field operations require an active ESP/CRM integration. Without one, these methods will return errors in the console. RM.getCustomField(fieldIdOrToken, parseJson) Read a custom field value from your ESP/CRM. // Get by field ID const companyName = RM.getCustomField('fld_company'); // Get by Liquid token const industry = RM.getCustomField('{{ subscriber.industry }}'); // Parse JSON data automatically const preferences = RM.getCustomField('user_preferences', true); console.log(preferences.newsletter); // Access parsed object Parameters: - fieldIdOrToken (string) - Custom field ID or Liquid templating token - parseJson (boolean, optional) - If true, attempts to parse the value as JSON Returns: The field value (string or parsed object) RM.setCustomField(fieldIdOrToken, value) Write a custom field value and sync it to your ESP/CRM. // Set a custom field RM.setCustomField('fld_last_interaction', new Date().toISOString()); // Update using token RM.setCustomField('{{ subscriber.lifecycle_stage }}', 'Customer'); // Store JSON data const userData = { plan: 'premium', signup_date: '2025-01-15' }; RM.setCustomField('user_metadata', JSON.stringify(userData)); Parameters: - fieldIdOrToken (string) - Custom field ID or Liquid token - value (string) - The value to set Real-time sync: Custom field updates sync automatically to your ESP/CRM in real-time, keeping visitor data consistent across platforms. Tags (ESP/CRM Integration) Manage tags on identified visitors in your ESP/CRM. Identification required: Tag operations only work for identified visitors (those with an email address or subscriber ID). Anonymous visitors cannot have tags applied. RM.addTag(tagIdOrName) Apply a tag to the identified visitor. // Add by tag ID (recommended) RM.addTag('tag_completed_onboarding'); // Add by tag name (ESP-specific) RM.addTag('VIP Customer'); Parameters: - tagIdOrName (string) - Tag ID or tag name Best practice: Use tag IDs rather than names for more reliable lookups across different ESP platforms. RM.removeTag(tagIdOrName) Remove a tag from the identified visitor. // Remove by tag ID RM.removeTag('tag_trial_user'); // Remove by name RM.removeTag('Trial User'); Parameters: - tagIdOrName (string) - Tag ID or tag name RM.hasTag(tagId) Check if a visitor has a specific tag. // Check for a tag if (RM.hasTag('tag_premium_member')) { console.log('Visitor is a premium member'); // Display premium content } Parameters: - tagId (string) - Tag ID to check Returns: true if visitor has the tag, false otherwise Utility and Debugging Helper methods to inspect and understand visitor data. RM.getVisitorContext() Get a clean, serializable copy of the current visitor context. // Get full visitor context const context = RM.getVisitorContext(); console.log('Visitor context:', context); console.log('Current segments:', context.segments); console.log('Custom fields:', context.customFields); Returns: Immutable object containing visitor data (frozen to prevent modification) The returned object filters out circular references and non-serializable values, making it safe for logging and debugging. RM.listSegments() Get all available dimensions and their segments with active status. // List all segments const allSegments = RM.listSegments(); console.log(allSegments); // Example output: // { // "Job Role": [ // { id: "seg_abc", name: "Marketing Manager", isActive: true }, // { id: "seg_def", name: "Developer", isActive: false } // ], // "Company Size": [...] // } // Check which segments are active in a dimension const jobRoleSegments = allSegments['Job Role']; const activeRole = jobRoleSegments.find(seg => seg.isActive); console.log('Active job role:', activeRole.name); Returns: Object with dimension names as keys and arrays of segment objects as values RM.listQuestions() Get all questions in the flow with their answer options. // List all questions const questions = RM.listQuestions(); console.log(questions); // Example output: // [ // { // id: "qst_abc123", // text: "What's your role?", // options: [ // { id: "opt_1", label: "Marketing", segmentId: "seg_marketing" }, // { id: "opt_2", label: "Sales", segmentId: "seg_sales" } // ] // } // ] Returns: Array of question objects with their options RM.listCustomFields() Get all available custom fields from your ESP/CRM integration. // List all custom fields const fields = RM.listCustomFields(); console.log(fields); // Example output: // [ // { id: "fld_company", token: "{{ subscriber.company }}", value: "Acme Corp" }, // { id: "fld_plan", token: "{{ subscriber.plan }}", value: "premium" } // ] // Find a specific field const companyField = fields.find(f => f.id === 'fld_company'); console.log('Company name:', companyField.value); Returns: Array of custom field objects with ID, token, and current value Common Use Cases Third-party analytics integration Send segmentation data to analytics platforms like Google Analytics, Mixpanel, or PostHog. // Get visitor segments const segments = RM.getSegments(); const segmentList = RM.listSegments(); // Build readable segment names const segmentNames = segments.map(segId => { for (const [dimension, segs] of Object.entries(segmentList)) { const match = segs.find(s => s.id === segId); if (match) return `${dimension}: ${match.name}`; } return segId; }); // Send to PostHog if (typeof posthog !== 'undefined') { posthog.identify(visitorEmail, { segments: segmentNames, engagement_score: RM.getScore('engagement') }); } // Send to Google Analytics if (typeof gtag !== 'undefined') { gtag('event', 'quiz_completed', { 'user_segments': segmentNames.join(', '), 'event_category': 'Engagement' }); } Conditional content display Return personalized HTML based on visitor segmentation. // Get visitor's industry segment const segments = RM.getSegments(); const segmentData = RM.listSegments(); // Find active industry let industry = 'General'; if (segmentData['Industry']) { const active = segmentData['Industry'].find(s => s.isActive); if (active) industry = active.name; } // Return personalized content if (industry === 'E-commerce') { return `

Boost Your Online Store Sales

Discover strategies specifically designed for e-commerce businesses...

Get the Guide `; } else if (industry === 'SaaS') { return `

Scale Your SaaS Business

Learn how successful SaaS companies use segmentation...

Get the Guide `; } else { return `

Personalization for Your Business

Let us show you how to get started...

Learn More `; } Dynamic lead scoring Adjust scores based on visitor behavior and sync to your CRM. // Increase score for high-value page visits const currentPage = window.location.pathname; if (currentPage.includes('/pricing')) { RM.adjustScore('purchase_intent', 15); RM.setCustomField('last_pricing_visit', new Date().toISOString()); } if (currentPage.includes('/enterprise')) { RM.adjustScore('deal_size', 25); RM.addTag('enterprise_interested'); } // Get final score and update CRM const totalScore = RM.getScore('purchase_intent') + RM.getScore('deal_size'); if (totalScore > 50) { RM.setCustomField('lead_score', totalScore.toString()); RM.addTag('hot_lead'); } Data transformation and enrichment Parse and transform ESP/CRM data for use in flows. // Get JSON data from custom field const rawPreferences = RM.getCustomField('user_preferences', true); // Transform and use the data if (rawPreferences && rawPreferences.newsletter_frequency) { const freq = rawPreferences.newsletter_frequency; // Set a segment based on preference if (freq === 'daily') { RM.addSegment('Engagement Level', 'Highly Engaged'); } else if (freq === 'weekly') { RM.addSegment('Engagement Level', 'Moderately Engaged'); } } // Enrich data back to ESP const visits = parseInt(RM.getVariable('total_visits') || '0'); RM.setVariable('total_visits', (visits + 1).toString()); if (visits > 10) { RM.setCustomField('visitor_type', 'Frequent'); RM.adjustScore('engagement', 5); } Troubleshooting Code returns non-displayable value Symptom: Your code runs but nothing displays in the widget. Cause: Code returned a non-displayable value (number, boolean, plain object). Solution: Return a string (HTML) or DOM element. Convert numeric results to strings or wrap in HTML: // Wrong - returns number return 42; // Right - returns string return '

Your score is 42

'; // Also right const score = 42; return `

Score: ${score}

`; Visitor not identified errors Symptom: Console shows "Visitor not identified" when using tag operations. Cause: Attempting tag operations on anonymous visitors who haven't provided an email address. Solution: Check visitor identification before tag operations: // Get visitor context to check identification const context = RM.getVisitorContext(); if (context.email || context.subscriberId) { RM.addTag('completed_quiz'); } else { console.log('Visitor not identified - skipping tag operation'); } Multiple segments found warnings Symptom: Console warns "Multiple segments found" when adding/removing segments. Cause: Segment names aren't unique across dimensions. Solution: Specify the dimension to disambiguate: // Ambiguous - if "Enterprise" exists in multiple dimensions RM.addSegment('Enterprise'); // Clear - specifies the dimension RM.addSegment('Company Size', 'Enterprise'); No integration found errors Symptom: Console shows "No integration found" when using custom field operations. Cause: No active ESP/CRM integration configured. Solution: Configure an email platform integration in RightMessage settings before using custom field or tag operations. Variable expiration not working Symptom: Variables persist longer than expected. Cause: Invalid expiration unit or duration format. Solution: Use only supported units (minutes, hours, days, weeks): // Wrong - invalid unit RM.setVariable('temp', 'value', { expiresType: 'duration', expiresDuration: 1, expiresUnit: 'months' // Not supported }); // Right - valid unit RM.setVariable('temp', 'value', { expiresType: 'duration', expiresDuration: 30, expiresUnit: 'days' }); Limitations - Tag operations require visitor identification: Anonymous visitors cannot have tags applied or removed - Custom field operations require active ESP/CRM integration: Will fail if no integration is configured - Segment lookup ambiguity: Segment names that aren't unique across dimensions require dimension specification - Data serialization limits: getVisitorContext() filters out circular references and non-serializable values - Return value restrictions: Only strings (HTML) and DOM elements can be displayed; other types are logged but not shown Getting help If you encounter issues with the Code Node API: 1. Check your browser's developer console for [RM] prefixed log messages 2. Use RM.listSegments(), RM.listQuestions(), and RM.listCustomFields() to inspect available data 3. Verify your ESP/CRM integration is active and properly configured 4. Test your code in small increments using console.log() for debugging 5. Contact support with console logs and your code snippet for personalized assistance

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