|Home > Iris APIs > Instance registry, instance discovery, and interface discovery API > Interface discovery|
Instances can support any subset of Iris functions. It is possible to check whether an instance supports a specific function or set of functions. It is also possible to get a list of all functions that a specific instance supports.
It is not mandatory to check whether a function is supported before
calling it. Functions that are not supported by an instance return
discovery is mandatory for all instances. In other words,
instance_getFunctionInfo() must not return