WCIP-14: Peer Liveness Monitoring

[pedrouid]

This WCIP specifies how two clients can monitor in a connected session wether their respective peers is still online.

To test the liveness of the other peer, the client will send a JSON-RPC request during the session with a new proposed method wc_isAlive, this request should be responded with a JSON-RPC response with result null.

The client should send this request every 10 seconds and should expect a response within one cycle. If the client doesn't receive a response for two cycles (20 seconds) then it should assume the peer is offline.

[pedrouid]

Additionally when the state of the peer liveness changes it should emit events for each state.

When the peer goes offline it should emit an event peer_offline.

When the peer goes online it should emit an event peer_online