Saxy

[ckoch-cars]

Saxy seems to be a transient dependency for ExAwsSQS

Saxy itself is marked as optional in ExAwsSQS V3.2.1+
https://github.com/ex-aws/ex_aws_sqs/blob/main/CHANGELOG.md

I think broadway_sqs should not require saxy at all. It should at least be marked as optional (or perhaps limited to :dev and/or :test). It doesn't seem that this project has any explicit dependency on saxy AFAICT.

[josevalim]

I may be misrembering but I was the one who added Saxy support to ex_aws_sqs because performance is much better. If saxy is not listed, it defaults to something xmerl or something else, which ends up being slower. So us defaulting to that is a way for us to guarantee good performance out of the box.