Example code for the eth_getTransactionByBlockNumberAndIndex json-rpc method. Сomplete guide on how to use eth_getTransactionByBlockNumberAndIndex json-rpc in GetBlock.io Web3 documentation.
Parameters
QUANTITY|TAG - integer or string
block number or "latest", "earliest" or "pending"
QUANTITY - integer
Transaction index position.
Request
wscat -c wss://rsk.getblock.io/YOUR-API-KEY/mainnet/ # wait for connection and send the request body {"jsonrpc":"2.0","method":"eth_getTransactionByBlockNumberAndIndex","params": ["latest","0x0"],"id":"getblock.io"}