The ms-toolsai.jupyter extension has a number of extensibility points for external partners to interface with. The definition of these extensibility points can be found here:

Api.ts

Some of the sub parts of that API are described in more detail below.

This api is called by an external extension to register a remote Jupyter server URI provider. This provider has the capability to inject UI into this command here:

(in that example, the Azure Compute entry was added).

When implementing the IJupyterUriQuickPicker, you have a number of responsibilities:

1. Add a jupyterRemoteServerProvider to your package.json contributes section. Like so:

	"contributes": {
		"jupyterRemoteServerProvider": []
	},

2. Call registerRemoteServerProvider in your extension's activate function.
3. Provide an entry point for the dialog above. You do this with the call to getQuickPickEntryItems.
4. Provide handleQuickPick. This function is called if the user picks one of your entries you provided in getQuickPickEntryItems.
5. handleQuickPick can put up more UI to ask the user to pick from a number of choices. Its end result should be a handle to a choice or 'back'. That handle is a string value that will be used later to identify the choices the user made in your UI.
6. getServerUri should be able to take a handle returned from handleNextSteps and provide an authorization header and a URL for final connection to a Jupyter server. At this point you might ask for a user name/password.

An example of implementing IJupyterUriQuickPicker can be found here:

Example extension

The jupyter extension defines a number of context keys that can be used in when clauses for keybindings. These include: