Small article to talk about Google Coder. This little project that allows you to learn to code on a Raspberry Pi is really screwed up. Entirely written in javascript it clearly demonstrates the speed of node.js for web applications. For my part, I use it to learn how to manipulate CSS and HTML5 tags. On the server side, I stay on python and Django. In short, if you don't want to format your raspberry just for that, you can install Coder on Ubuntu or Debian. You can also follow this procedure to install it on your RPI (on raspbian) without reinstalling the system as required by the official installation.

In this section:

Prerequisites

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Node.js

On ubuntu installing node.js and the npm library management tool is easy:

<br />
apt-get install nodejs npm

1	apt–get install nodejs npm

On the other hand on Debian it is necessary to install the backport repositories before

<br />
echo « deb http://ftp.us.debian.org/debian wheezy-backports main » &gt;&gt; /etc/apt/sources.list<br />
apt-get update<br />
apt-get install nodejs

echo « deb http://ftp.us.debian.org/debian wheezy-backports main » >> /etc/apt/sources.list

apt–get update

apt–get install nodejs

Make a symbolic link from nodejs to node
ln -s / usr / bin / nodejs / usr / local / bin / node
Check the installation

<br />
node -v

node –v

NPM

We get the script and we install on the fly

<br />
curl https://npmjs.org/install.sh | sudo sh

1	curl https://npmjs.org/install.sh \| sudo sh

Verification

<br />
npm -v

npm –v

Installing Google Coder

Source recovery

<br />
git clone https://github.com/googlecreativelab/coder

1	git clone https://github.com/googlecreativelab/coder

We place ourselves in the file and we install the necessary libraries

<br />
cd coder-base<br />
npm install

1 2	cd coder–base npm install

Installing applications in coder

<br />
cd coder-apps<br />
sh install_common.sh ../coder-base/

1 2	cd coder–apps sh install_common.sh ../coder–base/

The application needs a “pi” user

<br />
useradd -m pi

1	useradd –m pi

Start coding

<br />
cd coder-base<br />
npm start

1 2	cd coder–base npm start

The application is then available at the address of the machine that hosts all this. To modify the listening port you can modify the coder-base / config.js file. Here is mine:

<br />
exports.listenIP = null; //Defaults to *<br />
exports.listenPort= »8083″; //the SSL port things run on<br />
exports.httpListenPort= »8084″; //this will all be redirected to SSL<br />
exports.cacheApps = true;<br />
exports.httpVisiblePort= »8084″; //forwarded http port the user sees<br />
exports.httpsVisiblePort= »8083″; //forwarded https port the user sees