Example code for the sendrawtransaction json-rpc method. Ğ¡omplete guide on how to use sendrawtransaction json-rpc in GetBlock.io Web3 documentation.
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/'
--header 'Content-Type: application/json'
--data-raw '{"jsonrpc": "2.0",
"method": "sendrawtransaction",
"params": ["hexstring", null],
"id": "getblock.io"}'null