Descendants Selector in DataWeave 2.0 | Mule 4 Tutorial

Descendants Selector in DataWeave 2.0 | Mule 4 Tutorial | Deep Dive with Examples

In this video, we will learn about the Descendants Selector in DataWeave 2.0 and how it helps you extract values from deeply nested JSON or XML structures in Mule 4.

The Descendants Selector (..) is a powerful feature in DataWeave that allows you to search for all occurrences of a field name at any depth within the payload — without writing complex nested logic.

🔹 What you will learn in this video:

What is Descendants Selector in DataWeave?

Syntax explanation (..)

How it works with nested JSON

Using descendants selector with arrays and objects

Difference between . and .. selector

Real-time Mule 4 practical examples

When to use (and when NOT to use) descendants selector

🔹 Example Covered:

%dw 2.0
output application/json
---
payload..id

This will return all id fields present at any level inside the payload.

🎯 Perfect for:

Mule 4 Developers
DataWeave Beginners
Integration Developers
MuleSoft Interview Preparation

If you work with complex API responses or deeply nested data, understanding Descendants Selector will make your transformations much easier and cleaner.

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Видео Descendants Selector in DataWeave 2.0 | Mule 4 Tutorial канала CodeWithSachinSinghTomar