Include Highchart.js or Chartist.js library in a WordPress project.

I want to be able to display fully customizable [login to view URL] and/or [login to view URL] on my custom posts/pages and widgets. The charts need to be updatable via AJAX. I want to be able to display more than one chart on the same page, and or widget. The data to populate the charts will come from specific queries on an external database and it is out of the scope of this project. Please avoid solution that involves the use of google spreadsheets or similar. Accepted solutions are: - plugin development or expansion of an existing one. - Functions development to be added to the [login to view URL] file of the child theme - An alternative solutions can be explained and they will be carefully evaluated. NB: I am familiar with the Highcharts library and I’m able to query MySql databases and prepare data series to be displayed. With this project I want to be able to do the same things, but displaying the dynamically trough a Wordpress site, trough myy custom pages, or sidebar, or footers/headers. NB. The highcharts license is an employer concern.