How variables are fetched
This page describes the variable viewer and how it fetches data from the kernel.
The variable viewer is a custom webview registered in the Jupyter extension's package.json:
Those entries in the package.json are picked up when the extension registers the variable view type.
The registration is then handled by a VariableView which eventually uses the html method on a webview to load some react code for the UI.
[sequence diagram of creation sequence]
- Describe messages in use
- Show refresh cycle
- Describe how they're fetched from kernel
- Describe how they're fetched from the debugger