Vapor API client for auth-template: Create User - part 3

.swift

// In a real world App we want to decode our JSON data response into a Codable Object

struct CreateUserResponse: Codable {
    let id: Int
    let email: String
    let name: String
}


// Decoding CreateUserResponse inside a DataTask API client
createUserOLD(user: User(id: 4)) { (data, response, error) in

    let decoder = JSONDecoder()
    do {
        if let data = data {
            let response =  try decoder.decode(CreateUserResponse.self, from: data)
            print(response)
        } else {
            print(APIError.emptyData)
        }
    } catch (let error) {
        print(error)
    }
}


// Decoding CreateUserResponse inside the pipeline
// Note: For simplicity, we are not considering the response.statusCode

let postUser5Publisher = try? postUser(user: User(id: 5))

let decoder = JSONDecoder()
let cancellable2 = postUser5Publisher?
    .map { $0.data }
    .decode(type: CreateUserResponse.self, decoder: decoder)
    .sink(receiveCompletion: { (completion) in
        switch completion {
        case .failure(let error):
            print(error)
        case .finished:
            print("DONE - postUser5Publisher")
        }
    }, receiveValue: { user in
        print(user)
    })