Using HTTPS client certificates

[ekohl]

I'm evaluating options for an old codebase which has multiple HTTP client libraries and I'd like to consolidate. For example, it uses rest-client even though it's been unmaintained for years now as well as Faraday, Net::HTTP, etc.

Various of our services use HTTPS client certificates and I can't find an example. I saw I could pass in OpenSSL::SSL::SSLContext via the ssl_context option, but is that the recommended option? Having a documented example would help.