express 3 has been deprecated, and your examples use an API that is no longer endorsed

[Pomax]

express has been on v4 for a while now, and the way it deals with middleware is radically different (as in, backward compat. breakingly) from v3 and before. Most of the code used in your examples don't work with the current version of Express, as almost all the functions you're using (body parser, etc) are now their own modules instead of baked into express.

[simonlopez]

Hi, I haven't time to fix examples right now, but if you submit a pull request, I'll be happy to accept it.