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August 8, 2015 05:16
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Networker made from enums
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| /** | |
| paste this code into a playground to test it out | |
| */ | |
| import Foundation | |
| /** | |
| */ | |
| protocol NetworkProtocol { | |
| func go(completionHandler: (NetworkResponse) -> ()) | |
| } | |
| /** | |
| The response types for my network. | |
| Both values have appropriate associated types | |
| */ | |
| enum NetworkResponse { | |
| case Success(response: String) | |
| case Error(error: String) | |
| } | |
| /** | |
| the primary enum that handles the networking logic for my imaginary server | |
| only deals with GET and POST, but can easily be adapted to include other | |
| requests as well | |
| */ | |
| enum Network: NetworkProtocol { | |
| case GET(url: NSURL) | |
| case POST(url: NSURL, data: String) | |
| func go(completionHandler: (NetworkResponse) -> ()) { | |
| switch self { | |
| case .GET(let url): | |
| let request = NSURLRequest(URL: url) | |
| /// | |
| /// in reality the code from here to the end of the case should be wrapped in an async network call | |
| /// but for the purposes of this example, we skip that and go straight to the response | |
| /// | |
| let success = NetworkResponse.Success(response: "YAAAAAS YOU GOT DATA") | |
| completionHandler(success) | |
| /// let error = NetworkResponse.Error(error: "😬 uh oh! Your GET failed!") | |
| /// completionHandler(error) | |
| case .POST(let url, let data): | |
| let request = NSURLRequest(URL: url) | |
| /// | |
| /// in reality the code from here to the end of the case should be wrapped in an async network call | |
| /// but for the purposes of this example, we skip that and go straight to the response | |
| /// | |
| let success = NetworkResponse.Success(response: "`\(data)` POSTed like a boss!") | |
| completionHandler(success) | |
| /// let error = NetworkResponse.Error(error: "`\(data)`POST errored") | |
| /// completionHandler(error) | |
| } | |
| } | |
| } | |
| /// | |
| /// this obvi just a random url that's unsafely unwrapped for this example | |
| /// PSA: Don't unsafely wrap things! | |
| /// | |
| let url = NSURL(string: "http://www.tester.com/api?foo=bar")! | |
| /// | |
| /// An example GET request | |
| /// LOOK HOW EASY THIS IS TO READ AND UNDERSTAND | |
| /// | |
| let getRequest = Network.GET(url: url) | |
| getRequest.go {(response) -> () in | |
| switch response { | |
| case .Success(let response): | |
| println("GET Success: \(response)") | |
| case .Error(let error): | |
| println("GET error: \(error)") | |
| } | |
| } | |
| /// | |
| /// An example POST | |
| /// LOOK!!! 👓 | |
| /// | |
| let postRequest = Network.POST(url: url, data: "Hello 🌎") | |
| postRequest.go {(response) -> () in | |
| switch response { | |
| case .Success(let response): | |
| println("POST success!: \(response)") | |
| case .Error(let error): | |
| println("POST error: \(error)") | |
| } | |
| } |
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