Protip - you have to run your own instance of Barenote Api and (if needed) adjust the remote URL in
app.php
Before running this app you have to install its dependencies - this can be done automatically with Composer by running composer install
Once you have your API instance up and running you can have a look at app.php and make sure that the url is correct. If so, go on and run the file - application is interactive. You will first be asked to provide your credentials and then given access to more features such as viewing a list of notes or details of one of them.
This is part of a suite of apps which I've written for Internet Programming course on my BSc Computer Science studies.