General upload method. #43
Description
If you look at the #18 pull request, you'll see I was against the general upload method. One of the reasons I chose Rust is its type system, which allows you to control app behavior at compile time. In an ideal world, this crate would provide specific methods for each type of upload, specific to this type of upload options and result type.
While working on #14, I figured that the world is far from ideal and that considerable effort will be required to create and support content-type-specific methods. So yeah. I changed my mind.
But I would also wait until #41 is done. One outcome of this can be that this crate does not have an upload method at all.