Collection endpoint 'method' field should only accept uppercase

[tyteen4a03]

RFC7231 specifies that HTTP methods are case-sensitive, and only defines methods in uppercase, but Payload's types only accept lowercase method names.

This should be changed to only allowing uppercase for v3 release.

[akhrarovsaid]

You are correct, according to RFC7230 - RFC7321 method names must be uppercase. However, it's not actually clear to me if Payload automatically converts method names to uppercase behind the scenes - doesn't seem like it though. (I think we'd find that here but I may be mistaken.)

I agree, V3 should conform to existing conventions with custom endpoint methods.