GRPC_INVOKE_ASYNC_WITH_ATTR_NP - Executes an RPC.
INTEGER FUNCTION GRPC_INVOKE_ASYNC_WITH_ATTR_NP(HANDLE, METHDO_NAME, SID, ATTR, ...)
 INTEGER(KIND=8) HANDLE  CHARACTER(*) METHDO_NAME  INTEGER SID  INTEGER(KIND=8) ATTR   Other argumentsThe GRPC_INVOKE_ASYNC_WITH_ATTR_NP() function calls the method defined by the object handle. The GRPC_INVOKE_ASYNC_WITH_ATTR_NP() function does not wait for the called method to complete execution.
This function is MT-safe.
Fortran Client API has the below limitations.
If successful, GRPC_NO_ERROR is returned. In the case of an error, Error code is returned.
  GRPC_NOT_INITIALIZED  GRPC_SERVER_NOT_FOUND  GRPC_FUNCTION_NOT_FOUND  GRPC_INVALID_FUNCTION_HANDLE  GRPC_RPC_REFUSED  GRPC_COMMUNICATION_FAILED  GRPC_TIMEOUT_NP  GRPC_OTHER_ERROR_CODE