How to get brige id of active call real time in ARI?

Hello everyone. Hope you are doing well.
Currently, I am going to get the transcript of each channel in active call. I had a chance to look at some relevant articles so I could know I need to create a snoopchannel in a bridge.
Here is what I am lookat at now:

But I am not sure how to get the active call bridge id in real time.

Thank you.