Part 8

.swift

// Combining login and postTodo in a single call
func post(email: String, password: String, todo: Todo) -> AnyPublisher<Todo, Error>? {
    return login(email: email, password: password)
        .map {  token -> String in
            return token.string
        }
        .flatMap { (token) -> AnyPublisher<Todo, Error> in
            return postTodo(authToken: token, todo: todoList[1])
        }
        .eraseToAnyPublisher()
}

let cancellablePost = post(email: "user2@example.com", password: "password2", todo: todoList[0])?
    .sink(receiveCompletion: { (completion) in
        switch completion {
        case .failure(let error):
            print(error)
        case .finished:
            print("GET - DONE")
        }
    }, receiveValue: { response in
        print(response)
    })