The DataWeave guides provide all the information and examples you will need to transform your data. The tutorial is a great place to start. There is also a playground to test your transformations.
For more news and all things DataWeave, visit the DataWeave site.
To learn more about DataWeave, visit the Language Guide.
To look up reference information about DataWeave operators and functions, visit the Reference Guide.
To see sample scripts to solve common transformation scenarios, visit DataWeave examples.