Joshua A Erney

DataWeave

The (Unfinished) DataWeave Book

A link to my unfinished DataWeave book. This book attempts to cover important concepts for mastering the language that are not currently covered by the MuleSoft documentation.

MUnit

Effective MUnit Testing with MuleSoft

Having trouble determining exactly how to test your MuleSoft application with MUnit? Look no further!

Reflections

The 10 most Important Things I Did in my 20s

A reflection on 10 things I'm glad I did with my 20s.

DataWeave

DataWeave's update Function

Learn how to effectively use DataWeave's update function, as well as how to work around common gotchas.

DataWeave

DataWeave - The flatMap Function

Use cases for DataWeave's flatMap function.

Mule 4

The Mule 4 SDK: Intro

Overview The Mule SDK allows Mule developers to create modules that can be used just like any other module in Mule (e.g., HTTP module, Java module, Validation module). Put another way, the Mule SDK allows Mule developers to extend the Mule runtime to meet their needs in a way

Mule4

Streaming in Mule 4

How to configure end-to-end streaming transformations with Mule 4 and DataWeave 2

DataWeave

The DataWeave CLI

How to use DataWeave code in your Bash scripts.

Mule

DataWeave: Collapsing Keys

Collapse the keys of an Object to flatten a nested Object.

Mule

Mule 4: The Strategy Pattern

How to implement the Strategy pattern in Mule 4.

Mule

DataWeave 2.2 - Additions to the Arrays Module, Part 2

Learn how to use the join functions added to the DataWeave Arrays module in Mule 4.2.

Mule 4

DataWeave 2.2 - Additions to the Arrays Module, Part 1

Lunch break? Take a few minutes to get familiar with some of the new functions added to the DataWeave Arrays module in Mule Runtime 4.2.0

Mule

How to Remove Nested Key:Value Pairs with DataWeave

Learn how to remove nested key:value pairs in DataWeave 2.0.

API Gateway

Securing APIs with Kong and Keycloak - Part 2

Part II: Learn how to configure a Kong API Gateway with the OIDC Plugin and Keycloak to secure your APIs.

Kong

Securing APIs with Kong and Keycloak - Part 1

Learn how to configure a Kong API Gateway with the OIDC Plugin and Keycloak to secure your APIs.

DataWeave

DataWeave - The Map Function

Learn the ins and out of DataWeave's map function!

Mule

Mule Programming Style Guide: Stop Abusing the Choice Router

Why the choice router gets abused, why that's a problem, and what you can do to fix it.

Mule

Mule Programming Style Guide: Project Structure

Project structure is important! In this post I review how I layout my Mule microservices projects, as well as other types of projects I've build with Mule.

Kong

Writing a Plugin for Kong API Gateway 0.14.x

Step-by-step instructions on how to create your first plugin for Kong

Mule

Mule Programming Style Guide: DataWeave Code

How to structure and format your DataWeave code to optimize readability.

Mule

Mule Programming Style Guide: A Simple Main Flow

Why code readability is so important and how you can improve the readability of your Mule code.

DataWeave

Mule 4 - Accumulating Values in a For Each

This is a written post on the topic covered in my YouTube video: This post reviews how to accumulate a value into an array within a for-each loop. I'm going to cover how to do this in Mule 4, where we don't have access to MEL.

Mule

Lessons Learned - Using Queues in your Application Architecture

An honest story of my first time using queues to communicate between microservices. Learn from my mistakes so you don't make the same ones!

DataWeave

DataWeave - Transforming an Array to an Object

How to transform Arrays into Objects in DataWeave

DataWeave

DataWeave - Partition List

Learn how to partition a list in the spirit of Ruby's and Scala's partition function