protocolClasses
An array of extra protocol subclasses that handle requests in a session.
Declaration
var protocolClasses: [AnyClass]? { get set }Discussion
The objects in this array are Class objects corresponding to custom URLProtocol subclasses that you define. URL session objects support a number of common networking protocols by default. Use this array to extend the default set of common networking protocols available for use by a session with one or more custom protocols that you define.
Prior to handling a request, the URLSession object searches the default protocols first and then checks your custom protocols until it finds one capable of handling the specified request. It uses the protocol whose canInit(with:) class method returns true, indicating that the class is capable of handling the specified request.
The default value is an empty array.