{ mkDerivation, base, bytestring, clock, data-default, doctest
, fetchurl, http-types, prometheus-client, text, wai
}:
mkDerivation {
  pname = "wai-middleware-prometheus";
  version = "0.3.0";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [
    base bytestring clock data-default http-types prometheus-client
    text wai
  ];
  testHaskellDepends = [ base doctest prometheus-client ];
  homepage = "https://github.com/fimad/prometheus-haskell";
  description = "WAI middlware for exposing http://prometheus.io metrics.";
  license = stdenv.lib.licenses.asl20;
}