Clients of TIBCO ActiveMatrix Binding Type for REST can invoke backend services that are exposing IN-ONLY or IN-OUT message exchange patterns using HTTP operations (GET, PUT, POST, DELETE).
For a Service
IN-ONLY operations return HTTP code 200 OK for success or an HTTP error code in case of failure.
IN-OUT operations return a response or a fault in the HTTP body for success or failure. An HTTP error code is returned for protocol errors.
For a Reference
Configuring Out-Only operation in REST Resource Configuration file results in addition of dummy queryParameter Named 'AmxInOutBoolean' for that operation.