我正在尝试构建一个使用 KuCoin API 的 javascript/jQuery 脚本。我特别尝试从浏览器控制台使用 KuCoin API,而不是从 Node JS 或本地文件。
我在 Kucoin API 方面取得了一些成功,我可以发出签名的 REST GET 请求,但我无法让我的 REST POST 请求正常工作。这是我的代码:
// VARIABLES
var burl = 'https://cors-anywhere.herokuapp.com/https://api.kucoin.com'
var api_key = "xxx"
var api_secret = "xxx"
var api_passphrase = "xxx"
var endPointAccount = '/api/v1/accounts';
var endPointOrder = '/api/v1/orders';
// REST (Account)
// This signed GET request works
var now = Date.now();
var hey = now + "GET" + endPointAccount
/* signature */
var signature = CryptoJS.HmacSHA256(hey, api_secret);
var signatureInBase64 = CryptoJS.enc.Base64.stringify(signature);
/* passphrase */
var passphrase = CryptoJS.HmacSHA256(api_passphrase, api_secret);
var passphraseInBase64 = CryptoJS.enc.Base64.stringify(passphrase);
var headers = {
"KC-API-SIGN": signatureInBase64,
"KC-API-TIMESTAMP": now,
"KC-API-KEY": api_key,
"KC-API-PASSPHRASE": passphraseInBase64,
"KC-API-KEY-VERSION": "2"
}
var url = burl + endPointAccount;
$.ajax({
type: 'GET',
url: url,
headers: headers,
dataType: 'json',
success: function (data) {
console.log(data);
}
});
// REST (Order Limit BUY)
var now = Date.now().toString();
var hey = now + 'POST/api/v1/orders{"clientOid":"ADAUSDT","side":"buy","symbol":"ADA-USDT","price":"0.001","size":"50000"}';
/* signature */
var signature = CryptoJS.HmacSHA256(hey, api_secret);
signatureInBase64 = CryptoJS.enc.Base64.stringify(signature);
/* passphrase */
var passphrase = CryptoJS.HmacSHA256(api_passphrase, api_secret);
passphraseInBase64 = CryptoJS.enc.Base64.stringify(passphrase);
var headers = {
"KC-API-SIGN": signatureInBase64,
"KC-API-TIMESTAMP": now,
"KC-API-KEY": api_key,
"KC-API-PASSPHRASE": passphraseInBase64,
"KC-API-KEY-VERSION": "2"
}
var url = burl + 'POST/api/v1/orders{"clientOid":"ADAUSDT","side":"buy","symbol":"ADA-USDT","price":"0.001","size":"50000"}';
$.ajax({
headers: headers,
type: "POST",
url: url,
dataType: "json",
success: function (data) {
console.log(data);
}
});
我的 POST 请求总是收到以下错误: 代码:'400005',消息:'无效的 KC-API-SIGN'
有人知道我做错了什么吗?
谢谢, 史蒂夫
我也有同样的问题。首先,在要签名的字符串中,必须包含方法。然后你需要定义一个主体。如果没有主体,您应该传递 body=""。然后你必须将 Date.now() 解析为字符串。例如:
var now = Date.now().toString();
var hey = now + method + url + body;
写完这篇文章后,我看到你已经在 url 中包含了该方法,所以这也很好。
旁注:我没有使用 CryptoJS。我使用了node.js的加密模块。
如果你使用 NodeJs,这里是解决这个问题的步骤。
NPM 安装 crypto-js
将其导入到您将使用的文件以及 axios 中,然后使用下面的代码片段。
const axios = require("axios");
const CryptoJS = require("crypto-js");
class Authenticator {
async signRequest(payload) {
let { method, url, body, api_secret, api_passphrase, api_key } = payload
try {
const now = Date.now().toString();
let queryStringPost = now + method + url + JSON.stringify(body);
let queryStringGET = now + method + url;
let queryString = method == "POST" ? queryStringPost : queryStringGET;
console.log({queryString});
/* signature */
const signature = CryptoJS.HmacSHA256(queryString, api_secret);
const signatureInBase64 = CryptoJS.enc.Base64.stringify(signature);
/* passphrase */
const passphrase = CryptoJS.HmacSHA256(api_passphrase, api_secret);
const passphraseInBase64 = CryptoJS.enc.Base64.stringify(passphrase);
const fullUrl = `${process.env.KUCOIN_BASE_URL}${url}`
console.log({fullUrl});
if(method == "POST"){
const responseFromKucoin = await axios.post(fullUrl, body, {
headers: {
"KC-API-SIGN": signatureInBase64,
"KC-API-TIMESTAMP": now,
"KC-API-KEY": api_key,
"KC-API-PASSPHRASE": passphraseInBase64,
"KC-API-KEY-VERSION": "2"
},
})
const resp = responseFromKucoin.data
console.log({ resp });
}else{
const responseFromKucoin = await axios.get(fullUrl,{
headers: {
"KC-API-SIGN": signatureInBase64,
"KC-API-TIMESTAMP": now,
"KC-API-KEY": api_key,
"KC-API-PASSPHRASE": passphraseInBase64,
"KC-API-KEY-VERSION": "2"
},
})
const resp = responseFromKucoin.data
console.log({ resp });
return resp;
}
} catch (err) {
console.log({err});
}
}
}
module.exports = Authenticator
我向全班提出的请求示例。
const create = await new Kucoin().signRequest({
method:"POST",
url:"/api/v1/orders",
body:{"clientOid":"ETHUSDT", side:"buy", symbol:"ETH-USDT", type:"market", size:"2000"},
api_secret:process.env.KUCOIN_API_SECRET,
api_passphrase:process.env.KUCOIN_PASSPHRASE,
api_key:process.env.KUCOIN_API_KEY,
})
问题是您在标头中错过了 Content-Type:application/json :)