Method eth_getBalance undefined ()
connect with WS protocol

Parameters

DATA - hex string

20-byte account address from which to retrieve the balance.

QUANTITY|TAG - hex string

Integer representing a block number or one of the string tags latest, earliest, or pending, as described in Block Parameter.

Request

wscat -c wss://gno.getblock.io/YOUR-API-KEY/mainnet/ 
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "eth_getBalance",
"params": ["0xfe3b557e8fb62b89f4916b721be55ceb828dbd73", "latest"],
"id": "getblock.io"}

Response

{
    "id": "getblock.io",
    "jsonrpc": "2.0",
    "result": "0x3e20"
}