What is the command to run a VSCode Task?

[topo-con]

I have a task that runs an npm script from a package.json in nodejs. Do you know what I can put in the command parameter that will kick off that task?
I have tried:
npm run - error (this will run in the terminal of vscode)
task. - error

I have a nodejs Express project and it would be nice to auto start the server when I open the folder.

Thanks

[baincd]

"command": "workbench.action.tasks.runTask <task_name>",

Added in #11