Use matlab connunicate to bittrex api error (APISIGN_NOT_PROVIDED)

Question

I have the following code and I also read the post from Bittrex. My nonce and apikey are used for HMAC calculation, but I receive the APISIGN_NOT_PROVIDED error.

For this version, we use a standard HMAC-SHA512 signing. Append apikey and nonce to your request and calculate the HMAC hash and include it under an apisign header. Note: the nonce is not respected right now but will be enforced later.

if true
  % code
url_base = 'https://bittrex.com/api/v1.1/market/getopenorders';
body = [url_base,'?apikey=',apikey,'&nonce=',nonce];
sign = hmac(secret_key, body, 'SHA-512');
json = urlread( body, 'Get', {'apisign', sign} )
end

Tommaso Belluzzo Tommaso Belluzzo · Accepted Answer · 2017-11-28T21:10:16

Since urlread is not recommended anymore (reference here), just for the sake of curiosity, try the currently recommended alternative webread:

url_base = 'https://bittrex.com/api/v1.1/market/getopenorders/';
url_full = [url_base '?apikey=' apikey '&nonce=' nonce];
sign = hmac(secret_key,url_full,'SHA-512');

opt = weboptions('ContentType','json','HeaderFields',{'apisign' sign},'RequestMethod','get');
json = webread(url_full,opt);

Also, don't forget to put a breakpoint in your code and check how sign looks like, just to be sure you are forwarding properly formatted data in your HTTPS request headers.

Use matlab connunicate to bittrex api error (APISIGN_NOT_PROVIDED)

1 Answers