This character is QuickSilver and he’s the fastest of the X-Men. Mule 3.6 has no super powers, but when it comes to XPath, it’s the fastest ever! As you may remember, with the release of Mule 3.6.0 the XPath and XSLT was revamped. In this post, I’d like to not only continue elaborating on how great the improvement is, but also focus on a new aspect: Performance.
In spite of JSON’s reign as the king of API data format, XML still remains the exchange data format of choice for a number of systems. Any service exposing functionality through SOAP, and many application built years ago (or even nowadays) still depend on XML to share data – to such an extent that in April 2013 the W3C published a new spec for version 3.0 of the XPath, XSLT and XQuery standards.
Trust no one! Most security issues comes from assuming that no bad person is going to tamper with your input data. We usually pay more attention to it when processing the most common inputs, such as an HTTP request or some argument that’s going into an SQL query. But we usually don’t pay much attention to other types of resources that are also vulnerable to malicious thinking – such as an XML file.
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