The only HTTP API that is exposed is actually the SQS one. (I'm not opposed to a "regular" HTTP API but the goal was to make it easy for people to use existing

The only HTTP API that is exposed is actually the SQS one. (I'm not opposed to a "regular" HTTP API but the goal was to make it easy for people to use existing libraries.) If you do use your language's AWS SDK, the code handles [1] all of the V4 auth stuff. https://github.com/poundifdef/SmoothMQ/blob/main/protocols/sqs/sigv4.go https://github.com/poundifdef/SmoothMQ/blob/main/protocols/s... I'd love your feedback! Particularly the difficulties you find in running it, of which I'm sure there are many, so I can fix them or update docs.