Retrieve estimated Gas Limit consumption through pre-execution of transaction information. Currently supports only EVM networks.
POST https://www.okx.com/api/v5/wallet/pre-transaction/gas-limit
Parameter | Type | Required | Description |
---|---|---|---|
chainIndex | String | Yes | Unique identifier for the chain |
fromAddr | String | Yes | From address |
toAddr | String | Yes | To address |
txAmount | String | No | Amount of main chain coins for the transaction. Default is 0. Required for mainnet transfers to calculate gaslimit properly,passed in the smallest unit of the mainnet coin, such as ETH wei. |
extJson | Object | No | Additional parameters for calldata and other information |
extJson
Parameter | Type | Required | Description |
---|---|---|---|
inputData | String | No | Calldata |
Parameter | Type | Description |
---|---|---|
gasLimit | String | Estimated gas limit |
curl --location --request POST 'https://www.okx.com/api/v5/wallet/pre-transaction/gas-limit' \
--header 'Content-Type: application/json' \
--header 'OK-ACCESS-PROJECT: 86af********d1bc' \
--header 'OK-ACCESS-KEY: 37c541a1-****-****-****-10fe7a038418' \
--header 'OK-ACCESS-SIGN: leaV********3uw=' \
--header 'OK-ACCESS-PASSPHRASE: 1****6' \
--header 'OK-ACCESS-TIMESTAMP: 2023-10-18T12:21:41.274Z' \
--data-raw '{
"fromAddr": "0x383c8208b4711256753b70729ba0cf0cda55efad",
"toAddr": "0x4ad041bbc6fa102394773c6d8f6d634320773af4",
"txAmount": "31600000000000000",
"chainIndex": "1",
"extJson": {
"inputData":"041bbc6fa102394773c6d8f6d634320773af4"
}
}'
{
"code": "0",
"data": [
{
"gasLimit": "652683"
}
],
"msg": ""
}