Even if XML has recently stepped down a bit from its ubiquitous position due to the increasing popularity of JSON, both formats will continue to be heavily used to structure data.

In Java, it is a common practice to use the JAXB libraries to create classes that are able to serialize and deserialize XML data and construct XML documents through an API.

In a similar manner, the scalaxb library available for Scala can generate help classes for working with XML and web services. As an example, let's consider a small XML schema, Bookstore.xsd, that defines a set of books as part of a book store as follows:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            targetNamespace="http://www.books.org"
            xmlns="http://www.books.org"
            elementFormDefault="qualified">
    <xsd:element name="book_store">
        <xsd:complexType>
            <xsd:sequence>
                &lt...