Notes-20160716: Using Sinatra in Ruby

Using Sinatra in Ruby

A good introduction to Sinatra (a domain-specific language (DSL) for web applications) can be found at: http://www.sinatrarb.com/intro.html Links to an external site. 

This makes it very easy to process a POST, PUT, GET, etc. request with regular expression matching on the URL, parameters, etc.

Using the YouTube Search LTI example application (https://github.com/whitmer/youtube_lti) which makes use of an HTTP URL (rather than a HTTPS URL), you get a warning that it is not using HTTPS. See below:

http-to-external-app-20160719a.png

Canvas really seems to like to link to external tools via HTTPS. However, this means that one has to prepare the Ruby SInatra to accept HTTPS connections.