With IAM Authentication not able to pass region

[megha4thcloud]

I am not able to pass region for AWS IAM Authentication. Without that I am getting error
StatusCodeError: 400 - {"errors":["error making upstream request: received error code 403 from STS: <ErrorResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">\n \n Sender\n SignatureDoesNotMatch\n Credential should be scoped to a valid region. \n

Please tell me how to pass regoin: 'eu-central-1'

[giulianisanches]

I'm having this exactly same issue in my lambda. I don't think i have issues with the region where my code runs, as it's a lambda. So far i have:

• Tried to update the STS endpoints to regional using AWS.config.update({stsRegionalEndpoints: "regional"})
• Set the variable AWS_STS_REGIONAL_ENDPOINTS=regional

Without success.

The issue seems to happen in the VaultIAMAuth.js at the _authenticate method.