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Starting March 27, 2026, RC is rebranded as Nexconn. Existing RC SDK customers can continue using this documentation. New customers should refer to the Nexconn developer documentation.

Client API Reference

The Instant Messaging (IM) core capability library IMLib 5.X consists of 6 submodules:

LibCore (core functionality), chatroom (chatroom), customerservice (customer service), discussion (discussion group), location (real-time location), and publicserivce (Official Account).

The IMLib core class RCIMClient directly calls interfaces from each submodule without containing any specific implementations internally.

Below is the API reference documentation in appledoc format:

The following IMLib APIs are no longer recommended for use, with documentation retained for reference only: