blockbid signing

const key = "zzz";
const secret = "aaa";


const payload = {
  orders: [
    { volume: "0.000001", orderType: "limit", price: "0.000001", side: "buy" }
  ],
  market: "btctusd"
};
const nonce = new Date().getTime() + "";
const rawSignature = btoa(key) + btoa(nonce) + btoa(JSON.stringify(payload));
const hmac = crypto.createHmac("sha384", secret);

hmac.update(rawSignature);
const hmacSignature = hmac.digest("base64");

const res = axios({
  url: `${hostname}/trades/my?market=btcusdt`,
  headers: {
    "X-Blockbid-Signature": hmacSignature,
    "X-Blockbid-Nonce": nonce,
    "X-Blockbid-Api-Key": key
  },
  method: "GET"
}).then(res => {
  console.log(res.data);
});