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).
Release Notes
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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
ERROR: Traceback (most recent call last): Unable to compile the 'OgahTerkenal/OteHmacSha256/1' library: line 353: Undeclared identifier 'e' line 356: Undeclared identifier 'a' line 353: Variable 'S1_0' is not found in scope 'hmac_sha256_#2_#0_#3_#0', cannot register side effect.
COMMENTs: * I looked at the code, but can't see an immediately obvious problem. * Removing the hmac_sha256() call still causes the error. The error really comes already with the import statement.
stormRidr
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Made a copy of the code and finally got it to compile. It look like there was a compiler change at some stage.
FROM: binaryRotateRight(binaryString, rotateLen) => TO: binaryRotateRight(string binaryString, int _rotateLen) =>
Code works nicely. Thanks for the effort with the library!
OgahTerkenal
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@stormRidr, Sorry for the late response. Thank you for letting me know about it, I already updated it.
vlmbrjck
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Please add a sample indicator with a simple alert to demonstrate your library. I'm jumping from one error to another. A bit more documentation would be fantastic :-)
vlmbrjck
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After import, I'm getting this error: Could not find function or function reference 'hmac_sha256' Any suggestions?
dab1rd
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This is pretty good and I will need it... probably.. some day..
ea05c5df-f05e-45ad-b8ba-dff1f8
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How can i add Secret Key parameter to this library? I'm doing accesses outside of tradingview and got a request like this: Signature = HmacSHA256(secretkey, String)
OgahTerkenal
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@ea05c5df-f05e-45ad-b8ba-dff1f8, currently this function doesn't provide a way to separate secret key input. You need to concatenate the secret string into input, and on the other end you could leave the secret key empty. For example in openssl command you can just type:
USAGE:
import OgahTerkenal/OteHmacSha256/1
hash = hmac_sha256(txt)
ERROR:
Traceback (most recent call last):
Unable to compile the 'OgahTerkenal/OteHmacSha256/1' library: line 353: Undeclared identifier 'e'
line 356: Undeclared identifier 'a'
line 353: Variable 'S1_0' is not found in scope 'hmac_sha256_#2_#0_#3_#0', cannot register side effect.
COMMENTs:
* I looked at the code, but can't see an immediately obvious problem.
* Removing the hmac_sha256() call still causes the error. The error really comes already with the import statement.