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Data Mapping in Make: Parse AppHighway JSON Correctly

Complete guide to Make.com's data mapping for AppHighway tools. Iterator, Aggregator, Array Functions, nested JSON parsing, and complex data transformations.

Julia Schmidt
October 12, 2025
9 min read

TL;DR

  • Use Iterator to process arrays from API responses
  • Aggregator combines multiple items back into single output
  • Array Functions: map, filter, reduce for data transformation
  • Parse nested JSON with dot notation: data.user.email
  • Text Parser extracts specific fields from unstructured responses
  • Router splits data flows based on conditions

Why Data Mapping Matters

Make.com requires explicit data mapping between modules. AppHighway tools return structured JSON - understanding how to parse, transform, and map this data is essential for building robust scenarios.

Using Iterator for Arrays

Iterator processes each item in an array individually

Example: Structify returns array of contacts → Iterator → Process each contact

Use Case: When API returns multiple results that need individual processing

Using Aggregator to Combine Results

Aggregator merges multiple items back into single bundle

Example: Iterator processes 10 items → Aggregator → Single array output

Use Case: Combine processed results before sending to database or API

Next Steps

Master Make.com data handling

Download Make Blueprints

Get 10 scenarios with advanced data mapping examples.

Make.com Integration Guide

Learn the fundamentals of connecting AppHighway to Make.com.

Map Data Like a Pro

Mastering data mapping in Make.com unlocks the full potential of AppHighway tools. With Iterator, Aggregator, and Array Functions, you can build sophisticated data transformations without code.

Ready to map complex data? Download our blueprints with real-world mapping examples.

Data Mapping in Make: Parse AppHighway JSON Correctly | Tutorial