![]() There are tons of tutorials out there that teach you how to utilize the Decodable protocol to decode various types of JSON structure. Since then it has become the standard way for developers to decode JSON received from a remote server. Do not be concerned about the length of the response simply understand the data structure and make custom model according to it.The Decodable protocol was introduced in Swift 4. You may see various and more complex json data as you engage with another APIs. let dataTask = (with: url) task.resume() Conclusion ![]() If the data task is successful, data and response have value, and if it fails, error has value. Data, response, and error are the three arguments for the completion handler. When dataTask is finished, a closure called the completion handler is called. The dataTask method of the URLSession takes the parameters URL and completion handler. By accessing the shared type property, URLSession enables access to a shared instance. Swift creates and runs network requests over the internet using the URLSession class. let url = URL(string: "")! Create network request URL type takes string parameter and returns an optional URL. ![]() Swift allows you to define and modify requests using URL type. It has two components: protocol and domain. Swift uses Codable to make json data compatible to Swift types. Swift uses URLSession to fetch data from the web and uses JSONDecoder to decode it. It enables user to send and receive data from the web. In the world of apps, practically all apps use web services to get data from the internet.
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