I'm building a Ruby on Rails app, and I'd like to integrate some Office365 features.
For instance : I would like to download a file from OneDrive and then attach it to an Email in order to send it via Outlook rest API.
I found this get Item content OneDrive REST API but I dont understand how to use it.
I understand that I have to send a GET request (formated as explained in msdn.microsoft.com) with Rails, which will then provide me a "a pre-authenticated download URL" to download the file.
Then I will have to send a second GET request with this a pre-authenticated download URL to start the download, but I don't understand how to deal with the Response in order to save the file into a variable.
How can I retrieve the file into a variable of my Ruby on Rails App, so that I can attach it to an Email with an Outlook REST API to send it from my own Rail controller ?
Also this workflow is really not optimized in term of Bandwidth and Processing (3 REST API request + 1 download + 1 upload), it will work.
However if it exist a single REST API that direclty attach a OneDrive file to an email to send it, that would ease a lot my life, save energy, save money from Microsoft datacenter, and spare the planet ecology.
Any tutorial, examples, or more explanatory doc would be much appreciated.
--- EDIT ---
Adding link to the email is not wished as the email may have to be send to someone outside of Office365 users, and public link are a security issue for confidential documents.
Any help is welcome.