Using _method input hidden to override HTTP verbs

method-override-http-verbs

var methodOverride = require('method-override')

// NOTE: when using req.body, you must fully parse the request body
//       before you call methodOverride() in your middleware stack,
//       otherwise req.body will not be populated.

app.use(methodOverride(function(req, res){
  if (req.body && typeof req.body === 'object' && '_method' in req.body) {
    // look in urlencoded POST bodies and delete it
    var method = req.body._method
    delete req.body._method
    return method
  }
}))