---
title: "LiveView"
description: "1 posts about LiveView, summarised, each linking to the original."
---

# LiveView
> 1 posts about LiveView, summarised, each linking to the original.

## Articles

### [Launching Livebook using LiveView](https://yomu.fyi/post/launching-livebook-using-liveview.md)
- Company: [Fly.io](https://yomu.fyi/company/fly-io.md)
- Published: Nov 18, 2021
- Type: Problem & solution

Fly.io’s Livebook launcher uses a single LiveView process to deploy a Livebook instance, but temporarily held deployment secrets could be lost when a user refreshed the browser or the server restarted. The secrets, including liveview\_password, were sent to deployment and stored in Vault, so the values could not be retrieved; keeping them in a database or Redis also conflicted with avoiding persistent server-side storage. The implementation encrypts the private state with Phoenix.Token.encrypt/4, stores the resulting blob in browser SessionStorage, and uses LiveView hooks and websocket events to restore it through Phoenix.Token.decrypt/4. After recovery, the UI resumes tracking deployment progress, then clears the cached data when deployment succeeds or fails, while closing the tab also clears SessionStorage.