A collection of simple demos of Koa, a web application framework for Node.
First of all, check your Node version.
$ node -v
v8.0.0
Koa requires node v7.6.0+. If your version is older than that, upgrade Node first.
$ git clone https://github.com/canwhite/QCKoaDemos ~/desktop
Install the dependencies.
$ cd QCKoaDemos
$ npm install
Now play with the source files under the demos directory.