koa-helmet is a wrapper for helmet to work with koa.
npm install koa-helmet --save
Usage is the same as helmet.
var koa = require('koa');
var helmet = require('koa-helmet');
var app = koa();
app.use(helmet());
app.use(function *(){
this.body = 'Hello World';
});
app.listen(4000);koa-helmet pins to helmet's major version (koa-helmet 0.x locks to helmet 0.x).