This is an example call for eth_getTransactionByBlockNumberAndIndex.
{
"jsonrpc": "2.0",
"id": "1",
"method": "eth_getTransactionByBlockNumberAndIndex",
"params": [
"latest",
"0x0"
]
}
{
"jsonrpc": "2.0",
"id": "1",
"result": null
}