```swift
func postTodo() {
let message = #"{"message": "my new Todo"}"#
let request = RESTRequest(path: "/todo", body: message.data(using: .utf8))
Amplify.API.post(request: request) { result in
switch result {
case .success(let data):
let str = String(decoding: data, as: UTF8.self)
print("Success \(str)")
case .failure(let apiError):
print("Failed", apiError)
}
}
}
```
```swift
func postTodo() -> AnyCancellable {
let message = #"{"message": "my new Todo"}"#
let request = RESTRequest(path: "/todo", body: message.data(using: .utf8))
let sink = Amplify.API.post(request: request)
.resultPublisher
.sink {
if case let .failure(apiError) = $0 {
print("Failed", apiError)
}
}
receiveValue: { data in
let str = String(decoding: data, as: UTF8.self)
print("Success \(str)")
}
return sink
}
```