The document discusses transforming XML into another XML format using DataWeave. It provides an example use case of converting an XML bill for a customer into a new XML format with additional details for the backend. The input and output XML formats are shown. The steps for creating a DataWeave project to perform this transformation are outlined, including defining metadata, changing output types, using operators like map, reduce, and filter to transform the data and generate the new XML format.

1. Transforming XML into
Another XML using
DataWeave

2. Introduction
• Transforming XML into another XML
• Output changes for different output types
• How code can be automatically generated
• How we can write our own code
• Use of operators

3. Example Use Case
• Need to convert XML into another XML
• API returning information about bill for a customer in XML
• Backend also accepts XML input, however with some additional
details

4. Input XML
<bill>
<customer_details>
<name>Example Company</name>
<address>Pune, India</address>
</customer_details>
<products>
<product>
<description>Product 1</description>
<quantity>2</quantity>
<price>10</price>
</product>
<product>
<description>Product 2</description>
<quantity>5</quantity>
<price>30</price>
</product>
</products>
</bill>

5. Output XML
<bill>
<customer_details>
<name>Example Company</name>
<address>Pune, India</address>
</customer_details>
<products>
<product no="2">
<description>Product 2</description>
<quantity>5</quantity>
<price>30</price>
<discount>10.0%</discount>
<product_price>135.0</product_price>
</product>
</products>
<total_price>153.0</total_price>
</bill>

6. Project Creation Steps
• Define Metadata for input and output
• Change output type and observe change in Preview
• Use drag and drop functionality to generate code automatically
• Use map operator for generating array
• Use ++ operator for concatenating % symbol
• Use reduce operator for finding total price
• Define attribute of product
• Use filter operator to filter data based on conditions
• Run project

7. Thank You