Building on some of the concepts and skills from the previous chapter, this chapter explores how to test some popular cloud-based services and in particular how to deal with their authentication requirements using SoapUI.

There is an obvious emphasis on OAuth 2 due to its popularity, not only with Cloud Service Providers (CSPs), but also with web services in general. This also means all the examples are REST-related. This is again in part due to the popularity and the particular CSPs in the recipes, that is, Dropbox, Google, and AWS. While not covered here, Microsoft Azure also uses REST for its APIs and signed shared key authentication that could be handled in a similar way to the AWS recipe.

If you need to see a good example of using signed SOAP requests, the AWS Product Advertising API (http://docs.aws.amazon.com/AWSECommerceService/latest/DG/Welcome.html) and Mechanical Turk (http://aws.amazon.com/documentation/mturk/) web services are good places to look. SoapUI has good...