Parameters
string
default:"324"
required
Unique identifier for a blockchain network.
number
default:1
required
Request identifier used to match responses.
string
default:"2.0"
required
JSON-RPC version.
string
default:"eth_estimateGas"
required
JSON-RPC method name.
object
required
Two-element array: [modified transaction object, default block]. The transaction omits “nonce” and allows optional “from”.Positional parameters for
eth_estimateGas:params[0]: Legacy transaction (pre-EIP-2718).params[1]: Block identifier. Can be an integer block number or a string tag: “latest”, “earliest”, or “pending”.
Returns
string
The amount of gas used. Example:
“0x5208”.