RPC is focused on exposing behaviors. RPCs are often used for performance reasons with internal communications, as you can hand-craft native calls to better fit your use cases.
Choose a Native Library aka SDK when:
Choose a native library (aka SDK) when:
* You know your target platform.
* You want to control how your "logic" is accessed
* You want to control how error control happens off your library
* Performance and end user experience is your primary concern
* You want to control how your "logic" is accessed.
* You want to control how error control happens off your library.
* Performance and end user experience is your primary concern.
HTTP APIs following **REST** tend to be used more often for public APIs.
