Bitfinex

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This sample script is converted this sample script (javascript) to Google Apps Script. The point for converting is signature as shown in the following sample script.

• At Bitfinex API, after "/api/" + apiPath + nonce + rawBody is encrypted using HMAC SHA-384, the data of byte array is converted to HEX.
  • In Google Apps Script, there is no the method for this.
  • The data which was encrypted by Utilities.computeHmacSignature() is the bytes array of the signed hexadecimal.
  • On the other hand, at this sample script for javascript, the data which was encrypted by crypto.createHmac('sha384', apiSecret).update(signature).digest('hex') is the string of the unsigned hexadecimal.

In order to achieve above, I made the method of bytesToHex().