migrate-async-await-combine-client.swift

class Client1 {
    var cancellable: AnyCancellable?
    let api = API()
    
    func loadTodo() {
        cancellable = api.loadTodo()
            .sink(receiveCompletion: { result in
                switch result {
                case .finished:
                    print("finished")
                case .failure:
                    print("failed")
                }
            }, receiveValue: { todo in
                print(todo)
            })
    }
}