Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call eth_getFilterChanges.
None
QUANTITY
- A filter id.
// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":73}'
// Result
{
"id":1,
"jsonrpc": "2.0",
"result": "0x1" // 1
}