AirCasting API and web application
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AirCasting - Share your Air!


This is the AirCasting project - the project aims to build a platform for gathering, visualization and sharing of environmental data. To learn more about the platform visit


For a Debian/Ubuntu system, the easiest way to start is:

RVM prerequisites

sudo apt-get install bzip2 curl subversion git-core -y

Install RVM

curl -L | bash -s

RVM & app requirements

sudo apt-get install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison subversion pkg-config imagemagick mysql-server libmysqlclient-dev redis-server libgsl0-dev nodejs -y

install ruby

rvm install 2.0.0
rvm use 2.0.0

install bundler

gem install bundler

clone sources

git clone git:// aircasting
cd aircasting
cp config/database.yml.example config/database.yml

bundle dependencies

bundle install

create database

bundle exec rake db:create db:migrate

run sidekiq

bundle exec sidekiq -d

run application, by default starts at localhost:3000

bundle exec rails server


run tests

bundle exec rspec
bundle exec rake spec:javascript


Read more here.

API documentation

Read more here.


  • Mysql2::Error: All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use UNIQUE instead (...)

    If you see this error, you need to downgrade MySql database server to ver. 5.6. We don't support the latest MySql server version yet.

  • Library not loaded: /usr/local/opt/mysql/lib/libmysqlclient.20.dylib

    If you get this error while attempting rake db:migrate, reinstall gem mysql2:

    gem uninstall mysql2 gem install mysql2 -v '0.3.20'


If you'd like to contribute just use the usual github process - fork, make changes, issue a pull request.


You can contact the authors by email at


AirCasting uses The YourKit Java Profiler for Performance Tuning

YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: YourKit Java Profiler and YourKit .NET Profiler.


The project is licensed under the GNU Affero GPLv3. For more information see COPYING and visit