class Faraday::ClientError

def backtrace
  if @wrapped_exception
    @wrapped_exception.backtrace
  else
    super
  end
end

def initialize(ex, response = nil)
  @wrapped_exception = nil
  @response = response
  if ex.respond_to?(:backtrace)
    super(ex.message)
    @wrapped_exception = ex
  elsif ex.respond_to?(:each_key)
    super("the server responded with status #{ex[:status]}")
    @response = ex
  else
    super(ex.to_s)
  end
end

def inspect
  inner = ''
  if @wrapped_exception
    inner << " wrapped=#{@wrapped_exception.inspect}"
  end
  if @response
    inner << " response=#{@response.inspect}"
  end
  if inner.empty?
    inner << " #{super}"
  end
  %(#<#{self.class}#{inner}>)
end