While working on a project which uses Microsoft Graph APIs, I found myself opening the Microsoft Graph Explorer a lot to check which paths/parameters were available. The Microsoft Graph Explorer is a great tool, but I love not to change context too much.
As I like to create Visual Studio Code extensions, I did not have to think long to start building a new extension.
The good news for me was that Microsoft Graph Explorer has an API for retrieving the Open API information. This API returns all the available endpoints and their parameters per path. All I had to do, was create the logic to know when you are writing a Microsoft Graph URL and call the API to provide the suggestions.