wingrunr21
Per-call credentials
I'm building something that requires access to multiple MindBody customers at a time. To that end I've extended MindBody::Client to support this by passing in an auth: parameter alongside message: and written tests to cover the major cases for it (no auth:, auth: with source credentials, auth: with both source and user credentials).
Also, some tests were broken in master and I've fixed those as part of this branch.
Overall this looks ok. I'll need a README update.
Is this strategy of per-call overrides preferable over multiple instances? I'd actually considered removing the singleton-style of configuration and having the user create different instances instead (ala faraday).
I would totally love to do it via a configuration thing, but that was a way bigger change and I'm not super comfortable with the object model in here right now--figuring out where everything would need to be touched is a pretty big step.