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AWS Signature 4 API Connector

Trying to connect to AWS Services. Via Bubble Connector I wanted first initialize a call with Headers generated with Postman (Signature is valid for a short period of time). Then I wanted to use the AWS Signature 4 Plugin to generate a signature for me dynamically. Now I cannot initialize because of 403 Error. "Raw response for the API
Status code 403
{“message”:"The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.

The Canonical String for this request should have been

My secret key and access keys are super fresh and working in Postman, but not with the Bubble API Connector.

Anyone successfully set up API calls to AWS?

The canonical is sometimes touchy and needs to be url encoded in some cases.

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@rotari , Just realized I tried to share a private message in the previous post.

This is how I have structured calls to API gateway in the past.