class Faraday::Request::Authorization

@param app [#call] @param type [String, Symbol] Type of Authorization @param params [Array<String, Proc, call>] parameters to build the Authorization header.

If the type is `:basic`, then these can be a login and password pair.
Otherwise, a single value is expected that will be appended after the type.
This value can be a proc or an object responding to `.call`, in which case
it will be invoked on each request.

# File lib/faraday/request/authorization.rb, line 16
def initialize(app, type, *params)
  @type = type
  @params = params
  super(app)
end

@param env [Faraday::Env]

# File lib/faraday/request/authorization.rb, line 23
def on_request(env)
  return if env.request_headers[KEY]

  env.request_headers[KEY] = header_from(@type, env, *@params)
end