Substrate nodes

Check nodes from RPC request

1. Node connection:

The code connects to a Kusama (or Polkadot) node using WebSocket.

2. Fetching block information:

In each loop, the code retrieves the latest block header (block number and hash).

3. Sync status check:

The code checks whether the node is syncing and displays information about the current and highest block.

4. Health check:

The code retrieves information about the number of peers and the sync status to determine if the node is healthy.

5. Monitoring loop:

The program repeats the requests every 10 seconds to continuously monitor the node’s state.