Random Learnings by Ralph Palomar

     DataWeave is the main expression language in Mule 4, and with the recent version 2.0, it is the sole transformation language in a Mule 4 application. DataWeave is a powerful and rich scripting language, which  supports a variety of useful functions for data manipulations and transformations. It employs a functional programming principle, which means that functions don't have states and side effects. DataWeave functions can also be called recursively (I have done some recursive functions before but will think of a simple concrete example).     If you want to read and study more about DataWeave, and familiarize yourself with the different supported functions, go to  https://docs.mulesoft.com/mule-runtime/4.2/dw-functions     The DataWeave related functions are organized into modules. There are core modules, string modules, binary, cryptography, and a lot more. DataWeave is quite extensible, and I think in future upgrades of Mule we will see additional modules that would address

     This article is about how to jump-start your Mule API development journey. It is assumed that you already know the prerequisites and have the fundamental Mule knowledge. If you're quite new to MuleSoft, API development, or integration in general, I would suggest to go through the official Mule documentation , which would greatly help you get a deep-dive about the platform. If you're entirely new to MuleSoft, I hope that this article will give you a conceptual overview about the platform.      The question I initially had when I was starting Mule development was "Is there a specific, standard, and consistent way of developing Mule APIs?" The answer is either YES or NO.       YES, because it establishes best practices, enables rapid development, and allows you to get past the "boilerplate codes" and be able to move on to the more important implementation of the business logic and requirements. Consistency also means readability in a way that other develop