Remove boilerplate when connecting promise-returning middleware to Express

server-after.js

// use point-free callbacks
// http://glebbahmutov.com/blog/point-free-programming-is-not-pointless/
var middleware = require('./middleware');
app.get('example/uri', function (req, res, next) {
  middleware.first(req, res)
    .then(next)
    .catch(res.json)
    .done();
}, function (req, res, next) {
  middleware.second(req, res)
    .then(next)
    .catch(res.json)
    .done();
});

server-before.js

var middleware = require('./middleware');
app.get('example/uri', function (req, res, next) {
  middleware.first(req, res)
    .then(function () { next(); })
    .catch(res.json)
    .done();
}, function (req, res, next) {
  middleware.second(req, res)
    .then(function () { next(); })
    .catch(res.json)
    .done();
});

server-with-utility.js

var middleware = require('./middleware');
// move wrap to separate file later
function wrap(middleware) {
  return middlewareFn(req, res, next) {
    middleware(req, res)
      .then(next)
      .catch(res.json)
      .done();
  };
}
app.get('example/uri', wrap(middleware.first), wrap(middleware.second));