August 2010
Intermediate to advanced
320 pages
7h 17m
English
Content preview from Service-Oriented Design with Ruby and Rails
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Chapter 9. Parsing XML for Legacy Services
Sometimes an application must integrate with legacy services whose design is out of your control. It is common for these services to use XML formats such as SOAP, XML-RPC, or RESTful XML. This chapter covers some of the tools for parsing and working with XML-based services.
XML
Many older (and some newer) services use XML as their serialization format. While JSON is quickly becoming the preferred method of serialization due to its ease of use and simplicity, client libraries must occasionally work with XML. Libraries for parsing XML in Ruby include REXML, Nokogiri, Hpricot, LibXml Ruby, and SimpleXML.
The focus of this section is on parsing responses using REXML and Nokogiri. The reason for the choice ...
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