How is network interaction implemented in your project?

In my iOS project, network interaction is implemented using URLSession, which provides an API for performing HTTP requests.

For convenience and reusability, I created a network layer with abstraction that handles request creation, response processing, and errors. Codable is also used for JSON parsing.

Example of a simple request:

func fetchUsers(completion: @escaping ([User]?, Error?) -> Void) {
    let url = URL(string: "https://api.example.com/users")!
    URLSession.shared.dataTask(with: url) { data, response, error in
        guard let data = data, error == nil else {
            completion(nil, error)
            return
        }
        do {
            let users = try JSONDecoder().decode([User].self, from: data)
            completion(users, nil)
        } catch {
            completion(nil, error)
        }
    }.resume()
}

For more complex tasks, third-party libraries like Alamofire are used for convenient request building and response handling.