klay_estimateGas
Generates and returns an estimate of how much gas is necessary to allow the transaction to complete.
Name | Type | Description |
|---|---|---|
callObject | Object | The transaction call object. See the next table for the object's properties. |
callObject has the following properties:Name | Type | Description |
|---|---|---|
from | 20-byte DATA | (optional) The address the transaction is sent from. |
to | 20-byte DATA | (optional when testing the deployment of a new contract) The address the transaction is directed to. |
gas | QUANTITY | (optional) Integer of the upper gas limit provided for the gas estimation. If no gas limit is specified, the Klaytn node uses the designated gas limit as an upper bound. |
gasPrice | QUANTITY | (optional) Integer of the gasPrice used for each paid gas. |
value | QUANTITY | (optional) Integer of the value sent with this transaction. |
data | DATA | (optional) Hash of the method signature and encoded parameters. |
Type | Description |
|---|---|
QUANTITY | The amount of gas used. |
// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc": "2.0", "method": "klay_estimateGas", "params": [{"from": "0x3f71029af4e252b25b9ab999f77182f0cd3bc085", "to": "0x87ac99835e67168d4f9a40580f8f5c33550ba88b", "gas": "0x100000", "gasPrice": "0x5d21dba00", "value": "0x0", "data": "0x8ada066e"}], "id": 1}' http://klaytn.blockpi.network/v1/rpc/your-api-key
// Result
{
"jsonrpc": "2.0","id":1,
"result": "0x5208" // 21000
}
Last modified 11mo ago