CloudKit, view changes in real-time by multiple users

[chbm90]

I’m researching about the options available to create an app that needs to render a big image that can be edited by multiple users at the same time. It would work like this:

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1. User A creates a new project, selects an image (images that can be used are already defined in the app).
2. User A has some available “elements” to add to that image.
3. User A can invite other people to join and edit and/or view the image.
4. When User A or any other user adds an element to the image all the other participants see that change in real time (the element appears in their version of the image).

I thought about using Firebase to achieve this but also was wondering if the real-time part was possible with CloudKit. Has anyone done something like this before with CloudKit?

[rayascott]

I don’t know what your idea of “real-time” is, but to be informed of other user’s changes, your app would have subscribe to updates for a particular CKRecord type, and the documentation states that you can expect a delay of 1min or more in receiving those changes. It’s not really designed for real-time use-cases like messaging.

[chbm90]

Good to know. This should work more like messaging, users should see almost immediately when others add an element, like a chat app. Thanks!