Quick app pre-loading using saved HTML snapshot
See a larger Vue.js demo and its source. See the hydration in action on my own website glebbahmutov.com, notice how the list of projects when you refresh appears almost instantly, while the main application still loads.
Read the blog post Hydrate your apps
npm install --save hydrate-app
Include the script right after the web app element - this is important to prevent the content after the element from shifting.
id- the ID of the web application element to replace
verbose- if set to "true" prints console log messages
verbose-ui- show user popups
on- optional. If exists and set to string
hydrate-appfactory function will look for
window[<name>]flag to decide if it needs to hydrate. A good way to compare normal startup vs hydrated.
Once the script runs, it creates a global object called
has only a few methods for saving, loading and updating the HTML snapshot. The two
most important ones to call from your application are:
bottle.drink()- call when your application has initialized and rendered itself.
bottle.refill(defer)- call every time you want to take DOM snapshot. This snapshot will be rendered on the next page load.
defer postpones the refill by scheduling it on the event queue - for
some frameworks this allows to actually update the DOM.
You can find the current (if any) HTML snapshot in the localStorage under
bottle- + ID
key. If you want to erase the current snapshot, you can use
The hydration script removes CSS class name "hidden" from the web application's element. This is useful to remove the flash of the template and flicker. I recommend
Author: Gleb Bahmutov © 2015
License: MIT - do anything with the code, but don't blame me if it does not work.
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Support: if you find any problems with this module, email / tweet / open issue on Github
Copyright (c) 2015 Gleb Bahmutov
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