Lambda Function Buffer Error

hanumant.sidraya

Hello,
I'm trying to register users using user GUID.

Configured the LDAP for user authentication
Created lambda function for LDAP response reading and setting user information
We want to use LDAP user id to set in Fusion AUTH. objectGUID is configured as the attribute in LDAP configuration

This is the following function we used to convert ObjectGUID to string because ObjectGUID will be the binary.

const hexValue = Buffer.from(objectGUID, 'binary').toString('hex')

  console.log(Buffer.from(objectGUID, 'binary'))  
  console.log(hexValue)
  

  console.log(hexValue.replace(
        /([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{4})([0-9a-f]{10})/,
        '$4$3$2$1-$6$5-$8$7-$9-$10'
    ));

Buffer.from(objectGUID, 'binary') this function is not working in lambda function same peace of code work for normal javascript without any error.
ReferenceError: "Buffer" is not defined in <eval>

Please suggest to me an alternative solution or how to fix this buffer issue.

Thanks
Hanumant

joshua

@hanumant-sidraya,

There may be some additional insight to be gleaned from these two resources

FusionAuth also has a few helper functions that might be useful as well (and address your specific issue without the use of a Buffer).

https://fusionauth.io/docs/v1/tech/lambdas/ldap-connector-reconcile/#helper-functions

I hope this helps!

Thanks,
Josh
FusionAuth

hanumant.sidraya

@joshua Thanks it worked

joshua

@hanumant-sidraya