Checking for and calling another extension

[cmBarsotti]

Hello,
I have a sidebar VS Code extension I've written for my company. I'm trying to figure out if I can make sure the user had a specific extension installed and, if so, can I call that extensions commands from my extension.

The extension in question is MJML (published by MJML) mjmlio.vscode-mjml, and I would like to be able to call 'MJML: Open Preview to the Side' and others.

Thank you in advance.

[bwateratmsft]

Yes! The APIs you're interested in are here. Whatever an extension returns from its activate() method, will be visible to other extensions as the .exports field on the result from getExtension.

[r3m0t]

The command IDs are listed in the extension gallery, under "feature contributions". You can run a command using, eg, await vscode.commands.executeCommand("mjml.foo").