Data Mapper Node

Transform and reshape data using a JSON output template.

Overview

The Data Mapper node (labeled "Inspector" in the configuration panel) lets you define a JSON template that transforms data from previous nodes into a new structure. Use {{variableName}} interpolation to inject dynamic values.

Configuration

Output Template

The template editor supports the Insert Variable button to reference values from preceding nodes. Define your desired JSON structure and use {{variableName}} syntax to inject dynamic values.

Example: Reshape API Response

{
  "user": {
    "fullName": "{{api_response.first_name}} {{api_response.last_name}}",
    "email": "{{api_response.email}}"
  },
  "metadata": {
    "source": "api",
    "timestamp": "{{current_time}}"
  }
}

Example: Combine Multiple Sources

{
  "report": {
    "title": "{{form_input.title}}",
    "data": "{{query_results}}",
    "generatedBy": "{{model_response}}",
    "status": "complete"
  }
}

Example: Flatten Nested Data

{
  "id": "{{response.data.user.id}}",
  "name": "{{response.data.user.profile.name}}",
  "role": "{{response.data.user.role}}"
}

Best Practices

• Use descriptive variable names in your output template
• Keep templates focused on the data needed by downstream nodes
• Use the Insert Variable button to avoid typos in variable references
• Test with sample data to verify the output structure