01 - Networking in Swift - Making GET requests.swift

import UIKit

func loadData() {
    guard let url = URL(string: "https://reqres.in/api/users") else { return }
    
    URLSession.shared.dataTask(with: url) { (data, response, error) in
        if let error = error {
            print("Something went wrong with the request: \(error.localizedDescription)")
            return
        }
        
        guard let data = data else {
            print("No data found.")
            return
        }
        
        print(data)
        
    }.resume()
}
loadData()

02 - Networking in Swift - Converting JSON data.swift

import UIKit

func loadData() {
    guard let url = URL(string: "https://reqres.in/api/users") else { return }
    
    URLSession.shared.dataTask(with: url) { (data, response, error) in
        if let error = error {
            print("Something went wrong with the request: \(error.localizedDescription)")
            return
        }
        
        guard let data = data else {
            print("No data found.")
            return
        }
        
        do {
            let decoder = JSONDecoder()
            let result = try decoder.decode(Response.self, from: data)
            print(result)
        } catch let error {
            print("Cannot convert the response to the required objects: \(error.localizedDescription)")
        }
        
    }.resume()
}

struct Response : Decodable {
    var data: [User]
}


struct User: Decodable {
    let id: Int
    let email: String
    let first_name: String
    let last_name: String
    let avatar: String
}


loadData()