How to test Visual Studio Team Services (vsts) extension without uploading

To speed up development, you can set the baseURI property in your extensions manifest to localhost.

You need to deploy your "localhost-extension" only once, because it allways refers to the instance running on your machine locally.

The whole procedure is desribed in the following blog-post: https://realalm.com/2016/03/11/debugging-your-vsts-extension/