Rails application with offline mode

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Rails application with offline mode

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#1 by (6 votes)

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In a new venture, I need a simple application to stay in place if the internet connection is lost. Can someone explain me how to do this?

I had thought about using the HTML5 persistence features in case of connection loss, and somehow I still do not know, synchronize between the server and client databases when the connection is retrieved. But here's the question. How to do this using Rails?

I found some examples, but they are with static files referenced in the html5 cache manifest ... I do not know if it would be the same in rails. I have not tested it yet: (

Any ideas?

html5 ruby-on-rails ruby

asked by anonymous 20.09.2014 / 14:10

1 answer

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score 6 · Accepted Answer

The HTML5 Application Cache for all I know is quite complex and therefore can be a headache to implement.

My suggestions:

use PouchDB as suggested here (especially if you use a NoSQL database, since PouchDB can synchronize automatically).
Another option that may be more compatible across browsers would be to use localForage developed by Mozilla that allows you to save offline data on a common interface that uses WebSQL or IndexedDB as it is available.
returning to HTML5 and although not yet ready (since most browsers still do not support it), ServiceWorker will in the future be a fantastic solution to this problem (as seen in this presentation video ).

As for the server-side implementation of Rails, for all the solutions I suggested the server would just have to provide the database data in a JSON page that Javascript could access.