AlamofireReadUser.swift

// 1
Alamofire.request(Router.readUser("mattt")).responseObject{ (response: DataResponse<User>) in
            
            // Process userResponse, of type DataResponse<User>:
            if let user = response.value {
                print("User: { username: \(user.username), name: \(user.name) }")
            }
}

// 2
Alamofire.request(Router.readUser("mattt")).responseDecodable{ (response: DataResponse<User>) in
            
            // Process userResponse, of type DataResponse<User>:
            if let user = response.value {
                print("User: { username: \(user.username), name: \(user.name) }")
            }
}