Missing functionality in actions #1145
Description
Actions in Ros2 are great and amazingly implemented in Roslibjs, but I'm missing functionality (I think, do correct me if I'm wrong).
What I think we're missing:
The ability to directly subscribe on the feedback of an action, which is always a topic under the action, right?
And
The ability to directly subscribe on the status of an action; which (the same as feedback) is always a topic under the action right?
So my question is; was it intended that Action doesn't have a direct subscribe on feedback and or status? Because right now I'm finding myself to be creating the same topics over and over for actions.
For clarity: The reason I want this functionality is because we may have multiple instances of our application running so when user A sends a goal, user B needs to know this too. Hence we use the status and feedback of an action.
-> This is also why I requested this change: #1130