Library "OteHmacSha256"
Library to use HMAC SHA-256 by OgahTerkenal
hmac_sha256(string) HMAC SHA-256
Parameters:
string: msg String to be hashed
Returns: [string, array] Return a hashed string in hex format and an array of 8 32 bits integer
Library to use HMAC SHA-256 for authenticating alert message going out from TradingView.
It has limitation on allowed characters (because PineScript cannot access the underlying bits of each ASCII) from ASCII 32 to 126 only.
Usage Example section at the end of the source code pretty much tell everything about this library.
General example as how to import to your PineScript code is not included (please refer to the PineScript manual).