Webnative Progress on Publish

[boris]

As a developer, have support for the progress of publishing large files / large numbers of files, so that a user can be informed when the files are truly saved and available.

As requested by @saqimtiaz:

Webnative SDK: show progress of sync after calling publish()

Use case: adding multiple files to the file system from TiddlyWiki on Fission and showing the progress of the sync so the user knows when all of the data has been synced. When adding X files, display a progress bar showing how many of X have been successfully synced. The docs suggest that for a large data set it is better to add all the individual files and call publish once. However am I missing something or does this mean there is only a single callback on completion that can be used to displ…

For clarity, when using webnative in an edge app, files are uploaded to the client browser locally, and stored in indexeddb and added to IPFS locally.

At this point, the files are on IPFS. They are reachable in the network and data will be fetched directly from the js-ipfs client running in the browser.

See also this more detailed component diagram of Webnative.

But, they are not persisted anywhere else if the browser closes / if the browser cache is evicted. Calling webnative’s publish command sends the local WNFS file system root hash for the logged in user to our server, which then fetches it from the js-ipfs node.

In order to report progress to the developer who can then show the user progress, we’ll need to add support on the server to see if our IPFS nodes have fetched all the blocks. This (sparse) issue covers the server side support needed:

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