Kraken

gistfile1.txt

var Kraken = function(){
  
  this.host = "https://api.kraken.com";
  
  this.tab = "kraken";
  
  this.balances = {};
  
  this.initialize = function() {
    var pp      = PropertiesService.getScriptProperties();
    this.key    = pp.getProperties()['kraken_key'];
    this.secret = pp.getProperties()['kraken_secret'];
  };
  
  this.createSignature = function(endpoint, nonce, message) {
    
    var hash = Utilities.computeDigest(Utilities.DigestAlgorithm.SHA_256,nonce);  // you need to include the params in the signature
    var secret = Utilities.base64Decode(this.secret);
    var hmac = Utilities.computeHmacSignature(Utilities.MacAlgorithm.HMAC_SHA_512, hash, secret);
    return Utilities.base64Encode(hmac);
    
  };
  
  this.getBalances = function() {
    
    var endpoint = "/0/private/Balance";
    var url = this.host + endpoint;
    var message = "";
    var nonce = ""+new Date().getTime();
    var signature = this.createSignature(endpoint, nonce, message);
    
    var headers = {
      'API-Key'      : this.key,
      'API-Sign'     : signature,
      'nonce'        : nonce
    };
    
    var options = {
      "method"       : "post",
      "muteHttpExceptions": true,
      'Content-Type' : 'application/x-www-form-urlencoded',
      'User-Agent'   : 'BloomX Google Sheet Agent',
      "headers"      : headers,
      "payload"      : JSON.stringify({ "nonce" : parseInt(nonce) })
    };
    
    Logger.log(url);
    Logger.log(options);
    
    var response = UrlFetchApp.fetch(url, options);
    var resp = JSON.parse(response.getContentText());
    Logger.log(resp);
    
    return this.balances; 
  };
  
  // run this every time the object is created
  this.initialize();
}//