赎回流程#
对于赎回，流程指引见概述中的赎回流程部分。
1. 设置你的环境#
设置环境，详情见导入必要的 Node.js 库。
2. 搜索用户持仓#
以下是一个 Node.js 请求的示例。接口详情看这里。
步骤 1：定义参数#
接下来，定义用户持仓查询的参数。
const domain = 'https://www.okx.com';
const exploreBasePath = '/api/v5/defi/explore';
const transactionBasePath = '/api/v5/defi/transaction';
const userBasePath = '/api/v5/defi/user';
const calculatorBasePath = '/api/v5/defi/calculator';
const exploreBaseUrl = domain + exploreBasePath; // Explore API base url
const transactionBaseUrl = domain + transactionBasePath; // Transaction API base url
const userBaseUrl = domain + userBasePath; // User API base url
const calculatorBaseUrl = domain + calculatorBasePath; // Calculator API base url
const getUserAssetBody = {
"address":"0x7f****da",
"investmentId":"15299",
"chainId":"137"
};
步骤 2：定义辅助函数#
定义一个辅助函数，用于与 DeFi API 进行交互。
const getUserAssetData = async () => {
return fetch(calculatorBaseUrl + '/asset-detail', {
method: 'POST',
headers: headersParams,
body: JSON.stringify(getUserAssetBody),
})
.then((res) => res.json())
.then((res) => {
return res;
});
};
步骤 3：获取结果#
async function someFunction() {
const { data: userAssetData } = await getUserAssetData();
console.log(userAssetData);
}
someFunction();
发送交易后，你将收到以下响应：
{
"code": 0,
"msg": "",
"data":
[
{
"investmentName": "MATIC earn MATIC",
"investmentId": "15299",
"investType": "5",
"investName": "Stake",
"assetsTokenList":
[
{
"tokenSymbol": "MATIC",
"tokenAddress": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"network": "MATIC",
"tokenPrecision": "18",
"coinAmount": "0E-18",
"currencyAmount": "0"
}
],
"rewardDefiTokenInfo":
[
{
"baseDefiTokenInfos":
[
{
"tokenSymbol": "MATIC",
"tokenAddress": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"network": "MATIC",
"tokenPrecision": "18",
"coinAmount": "10.907755587159277921",
"currencyAmount": "8.3804286176144732267043",
"buttonType": "3"
}
],
"buttonType": "0",
"claimMode": "1",
"rewardType": "1"
}
],
"totalValue": "8.3804286176144732267043"
}
]
}
3. 搜索平台信息并获取投资品详情#
以下是一个 Node.js 请求的示例。接口详情看这里。
步骤 1：定义参数#
接下来，定义查询授权额度的参数。
const getProductDetailParam = {
investmentId: '21010',
investmentCategory: ''
};
步骤 2：定义辅助函数#
定义一个辅助函数，用于与 DeFi API 进行交互。
const getProductDetailRequestUrl = (api, queryParams) => {
const path = api + '?' + new URLSearchParams(queryParams).toString();
return {
apiRequestUrl: exploreBaseUrl + path,
path: exploreBasePath + path,
};
};
const getProductDetailData = async () => {
const { apiRequestUrl, path } = getProductDetailRequestUrl(
'/product/detail',
getProductDetailParam
);
return fetch(apiRequestUrl, {
method: 'GET',
headers: headersParams,
})
.then((res) => res.json())
.then((res) => {
return res;
});
};
步骤 3：获取结果#
async function someFunction() {
const { data: productDetailData } = await getProductDetailData();
console.log(productDetailData);
}
someFunction();
发送交易后，你将收到以下响应：
{
"code": 0,
"msg": "",
"data":
{
"investmentId": "21010",
"investmentName": "USDC-ETH",
"chainId": "324",
"rate": "0.06340",
"investType": "2",
"platformName": "SpaceFi",
"platformId": "491",
"analysisPlatformId": "294",
"poolVersion": "1",
"rateType": "1",
"tvl": "4464444.45647",
"underlyingToken":
[
{
"tokenSymbol": "USDC",
"tokenAddress": "0x3355df6d4c9c3035724fd0e3914de96a5a83aaf4",
"isBaseToken": false
},
{
"tokenSymbol": "ERA_ETH",
"tokenAddress": "0x0000000000000000000000000000000000000000",
"isBaseToken": true
}
],
"isInvestable": true,
"earnedToken":
[
{
"tokenSymbol": "USDC",
"tokenAddress": "0x3355df6d4c9c3035724fd0e3914de96a5a83aaf4",
"isBaseToken": false
},
{
"tokenSymbol": "ERA_ETH",
"tokenAddress": "0x0000000000000000000000000000000000000000",
"isBaseToken": true
}
],
"lpToken":
[
{
"tokenSymbol": "SLP",
"tokenAddress": "0xd0ce094412898760c2a5e37abec39b0e785b45ae",
"isBaseToken": false
}
],
"subscriptionMethod": "2",
"redeemMethod": "2"
}
}
4. 赎回预估信息计算#
你可以通过输入的赎回金额获得预估实际赎回信息。 以下是一个 Node.js 请求的示例。接口详情看这里。
步骤 1：定义参数#
接下来，定义计算赎回预估收益的参数。
const getRedeemInfoBody = {
address: "0x7f****da",
inputTokenAmount: "1.000000146425127036",
investmentCategory: "0",
investmentId: "21033",
isSingle: false,
outputTokenAddress: "0x6b175474e89094c44da98b954eedeac495271d0f",
outputTokenDecimal: "18",
slippage: ""
};
步骤 2：定义辅助函数#
定义一个辅助函数，用于与 DeFi API 进行交互。
const getRedeemInfoData = async () => {
return fetch(calculatorBaseUrl + '/redeem-info', {
method: 'POST',
headers: headersParams,
body: JSON.stringify(getRedeemInfoBody),
})
.then((res) => res.json())
.then((res) => {
return res;
});
};
步骤 3：获取结果#
async function someFunction() {
const { data: redeemInfoData } = await getRedeemInfoData();
console.log(redeemInfoData);
}
someFunction();
发送交易后，你将收到以下响应：
{
"code": 0,
"msg": "",
"data":
{
"investWithTokenList":
[
{
"tokenSymbol": "CORE",
"tokenName": "Core",
"tokenAddress": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"network": "CORE",
"chainId": "1116",
"tokenPrecision": "18",
"isBaseToken": true,
"coinAmount": "1",
"currencyAmount": "0.4918"
}
],
"gainsTokenList":
[
{
"tokenSymbol": "CORE",
"tokenName": "Core",
"tokenAddress": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"network": "CORE",
"tokenPrecision": "18",
"coinAmount": "0.00069321843585011",
"dataType": "0"
}
],
"approveStatusList":
[
{
"tokenSymbol": "CORE",
"tokenAddress": "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"network": "CORE",
"chainId": "1116",
"tokenPrecision": "18",
"isNeedApprove": false,
"approveAddress": "0x0000000000000000000000000000000000001007",
"orderType": "3"
}
],
"isSwapInvest": false,
"estimateGasFee": "99343",
"isAllowSubscribe": true,
"validatorName": "OKXEarn"
}
}
5. 生成用于赎回交易的调用数据#
我们进行认购的流程如下：
5.1 赎回授权#
以下是一个 Node.js 请求的示例。接口详情看这里。
步骤 1：定义参数#
接下来，定义计算投资赎回授权额度的参数。
const userInputList = [
{
"chainId": "56",
"coinAmount": "10",
"tokenAddress": "0x526a913a7a4518aa2abc3dcd3c46a9c73f40f94a"
}
];
const getTransactionAuthorizationBody = {
address: '0x7f****da',
type: '4',
investmentId: '6925',
userInputList: userInputList
};
步骤 2：定义辅助函数#
定义一个辅助函数，用于与 DeFi API 进行交互。
const getTransactionAuthorizationData = async () => {
return fetch(transactionBaseUrl + '/authorization', {
method: 'POST',
headers: headersParams,
body: JSON.stringify(getTransactionAuthorizationBody),
})
.then((res) => res.json())
.then((res) => {
return res;
});
};
步骤 3：获取结果#
async function someFunction() {
const { data: transactionAuthorizationData } = await getTransactionAuthorizationData();
console.log(transactionAuthorizationData);
}
someFunction();
发送交易后，你将收到以下响应：
{
"code": 0,
"msg": "",
"data":
{
"dataList":
[
{
"from": "0x7f****da",
"to": "0x52****4a",
"value": "0x0",
"serializedData": "0x095ea7b30000000000000000000000002c34a2fb1d0b4f55de51e1d0bdefaddce6b7cdd60000000000000000000000000000000000000000000000008ac7230489e80000",
"originalData": "{\"methodDefine\":\"approve(address,uint256)\",\"methodId\":\"0x095ea7b3\",\"methodType\":\"METHOD_ID\",\"params\":{\"params\":[\"0x2c34a2fb1d0b4f55de51e1d0bdefaddce6b7cdd6\",\"10000000000000000000\"]},\"useAdapter\":false}",
"signatureData": "1bca0efbd1c809de94cdd8c924329c7ac79a4d346742de61925e8494f2c84c446bd3cf42b56d690c85ff513beadf46cd18f4e3e74845a92c48451584615f749d1c"
}
]
}
}
5.2 赎回交易#
以下是一个 Node.js 请求的示例。接口详情看这里。
步骤 1：定义参数#
接下来，定义查询赎回投资品的参数。
const userInputList = [
{
"coinAmount": "0.6"
}
];
const getTransactionRedemptionBody = {
address: '0x7f****da',
investmentId: '6925',
userInputList: userInputList,
extra: "{\"redeemAll\":1}"
};
步骤 2：定义辅助函数#
定义一个辅助函数，用于与 DeFi API 进行交互。
const getTransactionRedemptionData = async () => {
return fetch(transactionBaseUrl+'/redemption', {
method: 'POST',
headers: headersParams,
body: JSON.stringify(getTransactionRedemptionBody),
})
.then((res) => res.json())
.then((res) => {
return res;
});
};
步骤 3：获取结果#
async function someFunction() {
const { data: transactionRedemptionData } = await getTransactionRedemptionData();
console.log(transactionRedemptionData);
}
someFunction();
发送交易后，你将收到以下响应：
{
"code": 0,
"msg": "",
"data":
{
"dataList":
[
{
"callDataType": "WITHDRAW",
"from": "0x7f****da",
"to": "0x83****ea",
"value": "0x0",
"serializedData": "0xba08765200000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f429edeff8afc7bb3a2cf7db832fc86f6fa99da0000000000000000000000007f429edeff8afc7bb3a2cf7db832fc86f6fa99da",
"originalData": "{\"callDataType\":\"WITHDRAW\",\"methodDefine\":\"redeem(uint256,address,address)\",\"methodId\":\"0xba087652\",\"methodType\":\"METHOD_ID\",\"params\":{\"params\":[\"0\",\"0x7f429edeff8afc7bb3a2cf7db832fc86f6fa99da\",\"0x7f429edeff8afc7bb3a2cf7db832fc86f6fa99da\"]},\"useAdapter\":false}",
"signatureData": "e6beeb6f9df6ecb7eb7791e57226f9eca1d7c3efa869172bb5021b9c827ad21b46e3dc4566608af727555e0a47aa90cf261331f4e1691b0201aa0b8a00ea685b1b"
}
]
}
}
6. 签名和广播#
签名时可以直接使用第三步获得的 serializedData 作为 Call data，也可以由用户通过 originalData 自己拼装 Call data 进行签名广播。EVM 类投资品参考签名示例。