Built on top of Laravel Lumen fast PHP micro-framework, just to speed up development by easing common tasks. Structure auto-generated by framework, consider reviewing only these files, see below, they're contain a main business logic.
/app/Library/BaseMapping.php/app/Library/Specialized1Mapping.php/app/Library/Specialized2Mapping.php
Simple RESTful routing definition over here /app/Http/routes.php.
# In case if composer is not installed, just run
$ curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
# Install all dependencies
$ composer install
# Run all tests
$ vendor/bin/phpunitOpen /app/tests/MappingTest.php there you'll find coverage of all possible cases.
Please let me know, if something went wrong or my help would be required.