Get data required for signature#
Query some data required for signature, including on-chain data (such as the current height required by some chains) and address-related data (such as nonce).
Request URL#
POST https://www.okx.com/api/v5/waas/transaction/get-sign-info
Request parameters#
| Parameter | Type | Required | Description |
|---|---|---|---|
| chainId | String | Yes | Unique identifier of the chain |
| addrFrom | String | Yes | From address for the transaction |
| addrTo | String | Yes | To address for the transaction |
| txAmount | String | Yes | Transaction amount |
| extJson | Json Object | No | Extended parameters |
| >inputdata | String | No | callData for making contract call |
Response parameters#
| Parameter | Type | Description |
|---|---|---|
| gasLimt | String | Gas Limit |
| nonce | String | Current number |
| gasPrice | Object | Gas Price |
| >normal | String | Medium gasPrice |
| >min | String | Low gasPrice |
| >max | String | High gasPrice |
| >supportEip1559 | Boolean | Whether to support 1559 |
| >erc1559Protocol | Object | 1559 protocol |
erc1559Protocol
| Parameter | Type | Description |
|---|---|---|
| erc1559Protocol | Object | 1559 protocol |
| >suggestBaseFee | String | Suggested base fee |
| >baseFee | String | Base fee |
| >proposePriorityFee | String | Medium tip |
| >safePriorityFee | String | Low tip |
| >fastPriorityFee | String | High tip |
Request example#
shell
curl --location --request POST 'https://www.okx.com/api/v5/waas/transaction/get-sign-info' \
--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 '{
"addrFrom": "0x383c8208b4711256753b70729ba0cf0cda55efad",
"addrTo": "0x4ad041bbc6fa102394773c6d8f6d634320773af4",
"txAmount": "31600000000000000",
"chainId": "1",
"extJson": {
"inputData": "041bbc6fa102394773c6d8f6d634320773af4"
}
}'
Response example#
200
{
"code": 0,
"msg": "success",
"data": [{
"gasLimit": "21000",
"nonce": "0",
"gasPrice": {
"normal": "12694000000",
"min": "9340000000",
"max": "17318000000",
"supportEip1559": "true",
"erc1599Protocol": {
"suggestBaseFee": "8840000000",
"proposePriorityFee": "760000000",
"safePriorityFee": "500000000",
"fastPriorityFee": "2290000000",
"baseFee": "8840000000"
}
}
}]
}