Gives a brief overview of Mule's Dataweave

1. Mule Concepts
DataWeave I

2. • The DataWeave Language is a simple, powerful tool used to query
and transform data inside of Mule.
• It can be implemented to:
– graphically map fields by dragging one attribute to another, just like you were able
to with the now deprecated DataMapper, or
– leverage its powerful object-oriented language that’s specially designed to make
writing transformations quick, without compromising maintainability.
• DataWeave supports a variety of transformations:
– imple one-to-one, one-to-many or many-to-onemappings from an assortment of
data structures
– more elaborate mappings including normalization, grouping, joins, partitioning,
pivoting and filtering.
• With DataWeave and Mule Expression Language (MEL), you can
take your application’s data transformation ability to the next level.
• You can also call upon the power of DataWeave language
within other components by using Mule Expression Language
DataWeave Functions.
DataWeave

3. • The language is tightly integrated with Mule and Anypoint
Studio.
• Use the Transform Messagecomponent, which allows you to
use the language to query and transform data through
DataWeave.
• Any mappings performed through the graphical interface will
be expressed in DataWeave code in real-time.
• DataWeave supports DataSense.
• DataSense allows to leverage metadata from connectors,
schemas and sample documents in order to design your
transformations more easily.
• DataSense assists in design time by providing a live stream of
content types while you are coding, scaffolding your mappings
to help make writing transformations fast and easy.
DataWeave

4. • DataWeave replaces DataMapper.
• MuleSoft recommends to use DataWeave, if possible, to avoid
future obsolescence.
• For the projects that employ the deprecated DataMapper, a
migration tool is now included in Studio, which assists in
converting a DataMapper map to DataWeave.
• To migrate : Right click on a DataMapper, select Migrate to
DataWeave, and follow the instructions.
DataWeave