Making an HTTP GET request
In this example, we will make a GET request to Apple's iTunes search API to get a list of items related to the search term Jimmy Buffett. Since we are retrieving data from the service, by REST standards, we should use a GET request to retrieve the data.
While the REST standard is to use GET requests to retrieve data from a service, there is nothing stopping a developer of a web service from using a GET request to create or update a data object. It is not recommended to use a GET request in this manner, but just be aware that there are services out there that do not adhere to the REST standards.
The following code makes a request to Apple's iTunes search API and then prints the results to the console:
public typealias dataFromURLCompletionClosure ...
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