learn you node http uppercase

httpuppercase.js

var http = require('http')
var map = require('through2-map')

var port = process.argv[2]

http.createServer(function (request, response) {
    request
        .pipe(map(function (chunk) {
            return chunk.toString().toUpperCase()
        }))
        .pipe(response)
}).listen(port)

is there an alternative to calling the .toString() method here?

I was trying the setEncoding() on the request argument which is a stream but it still wouldn't let me.

Wondering why I can use that method here...