Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call .
Filter IDs will be valid for up to fifteen minutes, and can polled by any connection using the same v3 project ID.
EXAMPLE
## JSON-RPC over HTTPS POST
## Replace YOUR-API-KEY with an API key from your chainRPC Dashboard
## You can also replace mainnet with a different supported network
curl https://eth.chainrpc.io/v3/YOUR-API-KEY \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":1}'
## JSON-RPC over WSS
## Replace YOUR-API-KEY with an API key from your chainRPC Dashboard
## You can also replace mainnet with a different supported network
wscat -c wss://eth.chainrpc.io/v3/YOUR-API-KEY
>{"jsonrpc":"2.0","method":"eth_newBlockFilter","params":[],"id":1}
RESPONSE
RESULT FIELDS
FILTER ID - hexadecimal denoting the newly created filter ID