client support: generate requests for an operation

[karenetheridge]

Getty wants a thing that generates an http request for an operation, given some input parameters.

https://metacpan.org/release/GETTY/Langertha-0.004/source/lib/Langertha/Role/HTTP.pm#L37

This might belong in its own distribution, oriented towards client things.

Will have to include hooks for media type serializers. Since we will need deserializers as well (for decoding the response to send back to the client), perhaps we pull out the existing media type deserializers that live in JSM (for the purposes of implementing the contentMediaType keyword, but are also used for content validation in OpenAPI::Modern).

[karenetheridge]

For URI construction, something like url_for, only we take an operation id (or path-item reference) and path_captures/uri_captures. Find the appropriate servers object and construct the uri prefix using servers url and variables, then find the appropriate path template and fill in the uri suffix path using path_captures.

Body should be provided in deserialized form; given a media type name (if there is more than one), we can encode the body content.

[karenetheridge]

For serialization to application/json content, support providing a Cpanel::JSON::XS::Type hash to provide hints for how to serialize data - e.g. turning perly bools like '' and 1 into true and false.