Upload flow, download flow and notifications
Play this lessonThis lesson comes with an interactive animation you can break and a chapter quiz.Triggered when a file is added or edited elsewhere. If client 2 is online, the notification service tells it to pull the latest data; if it's offline, changes are saved to the cache and delivered when it reconnects. Client 2 then fetches the new metadata from the API servers, and downloads the blocks from the block servers to reconstruct the file.
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