What is the difference between subscribe attributes and request attributes

[anhdv1979]

Cound anyone tell me What is the difference between subscribe attributes and request attributes ?

[ingempo]

Hi @anhdv1979 !

When subscribing to an attribute, a callback is performed, which means that if the attribute changes on the client side (TB), the callback will be triggered. In the other hand, the attribute request is performed on the device. You can request client keys or shared keys on the client side.