Simple C# method and a Google Docs add-on which work together to remotely paste text

ABOUT US: Model My Future delivers complex custom business applications by aggregating lots of smaller component parts. We work exclusively with freelancers and we aim to be crystal clear about what we want. This means that you can get high performance code out really quickly - without wasting any time on trying to interpret the spec or figure out what the client really wants - which increases your throughput and lets you have fun doing it! OUTLINE OF THIS MICRO-JOB: Code for a minimally-simple Add-on for Google Docs, and a tiny C# method that can send a text string to it, which the Add-on then pastes it into a Doc. SKILLS REQUIRED: - Google Drive REST API - C# REQUIRED FUNCTIONALITY (COMPLETE): - User installs the Docs utility by clicking the "Add-ons" menu item and searching for it by name - A Hello World message appears, to confirm that the add-on is live - No further functionality can be triggered by the user via Google Docs - When your C# method (in a different application) is called, with a string specified as the only argument, the string is sent to the Google Add-on - Your Add-on then insert the text into a Google Doc (the name of the doc can be hard-wired for this demonstrator) - That's it... Really simple! OTHER NOTES: - There will be lots more little tasks like this, if you enjoy doing this one - Obviously the Google Doc used for test must have sharing enabled and the C# method must know the credentials. The job does not involve passing this information, or encrypting anything so for the purpose of this delivery you can hard-wire the credentials of the Doc you are using - For test/demo purposes, please paste the text into a blank Doc on a free user account. - The C# method should be delivered in a testable form, e.g. in a simple console app to drive it or (preferably) an MVC web page DELIVERABLES: - The code for the two parts - A compiled console app or web app that has a button to press to run the C# test method - The compiled version of the Google Add-on to be available in the Add-ons search list (via a private link) ACCEPTANCE TEST FOR FULL, IMMEDIATE PAYMENT: - We should be able to click the button on the C# test app and the text should be pasted into the Google Doc of the given name. This is all it needs to do, but it should do it reliably, without fail, regardless of what brower environment the user is using to browse the Google Doc.