How do I sign requests?

[wliamwhite]

I am having trouble making api requests for anything that requires a signature. I am under the impression that I need to use base64 and hmac to encode the 'api_secret' and timestamp, as well as the 'api_secret' and the 'api_passphrase.' this is from the kucoin api docs:

signature = base64.b64encode( hmac.new(api_secret.encode('utf-8'), str_to_sign.encode('utf-8'), hashlib.sha256).digest()) passphrase = base64.b64encode( hmac.new(api_secret.encode('utf-8'), api_passphrase.encode('utf-8'), hashlib.sha256).digest())

and then the request object includes

headers = { "KC-API-SIGN": signature, "KC-API-TIMESTAMP": str(now), "KC-API-KEY": api_key, "KC-API-PASSPHRASE": passphrase, "KC-API-KEY-VERSION": 2 "Content-Type": "application/json" # specifying content type or using json=data in request }

Do I have a second export in config.js for this?

[RezaAb]

You can review the source code of the utils file. The utils file

If you use this package you don't need to create a sign again. But for your manual handling, you can review the code.

 function sign(text, secret, outputType = 'base64') {
   return CryptoJS
    .createHmac('sha256', secret)
     .update(text)
     .digest(outputType);
 }

 function auth(ApiKey, method, url, data) {
   const { authVersion } = getConfig();
   const timestamp = Date.now();
   const signature = sign(timestamp + method.toUpperCase() + url + data, ApiKey.secret);
   const returnData = {
     'KC-API-KEY': ApiKey.key,
     'KC-API-SIGN': signature,
     'KC-API-TIMESTAMP': timestamp.toString(),
     'KC-API-PASSPHRASE': ApiKey.passphrase || '',
     'Content-Type': 'application/json',
     'User-Agent': 'KuCoin-Node-SDK/${version}',
   };
   if (authVersion && (authVersion === 2 || authVersion === '2')) { // for v2 API-KEY
     returnData['KC-API-KEY-VERSION'] = 2;
     returnData['KC-API-PASSPHRASE'] = sign(ApiKey.passphrase || '', ApiKey.secret);
   }
   return returnData;
 }

[StephaneTurquay]

@RezaAb Thanks for sharing this however how do you make us of it? Do you have an example with Get Order Id for instance? Thanks

[AndrejGajdos]

@RezaAb same here. How to use this library?

[RezaAb]

@StephaneTurquay @AndrejGajdos You don't need to sign anything. It is automated.

 const kucoinAPI = require('kucoin-node-sdk');
 kucoinAPI.init({
 	baseUrl: 'https://api.kucoin.com',
 	apiAuth: {
 		key: "", // KC-API-KEY
 		secret: "", // API-Secret
 		passphrase: "", // KC-API-PASSPHRASE
 	},
 	authVersion: 2, // KC-API-KEY-VERSION. Notice: for v2 API-KEY, not required for v1 version.
 });
 let orderId = "";
 let result = await kucoinAPI.rest.Trade.Orders.getOrderByID(orderId);