Trifolium.Config.protocol

You're seeing just the function protocol, go back to Trifolium.Config module for more information.

Returns the protocol used for the Trefle API. The default is "https" for interacting with the Trefle API, but when testing with Bypass, you may want this to be "http". You can override this in mix.exs with:

config :trifolium, protocol: "http"