It is possible to query the node via its REST Interface.
In the node configuration, you have set something like:
# ...
rest:
listen: "127.0.0.1:8443"
#...
This is the REST endpoint to talk to the node, to query blocks or send transaction.
It is possible to query the node stats with the following end point:
curl http://127.0.0.1:8443/api/v0/node/stats
The result may be:
{"blockRecvCnt":120,"txRecvCnt":92,"uptime":245}
THE REST API IS STILL UNDER DEVELOPMENT
Please note that the end points and the results may change in the future.
To see the whole Node API documentation, click here