• MajesticElevator@lemmy.zip
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      7 hours ago

      as in the server chats with another

      Centralized servers in which 2 users talk can be considered “synchronous” because they get the message nearly instantly, but yea, we often use NoSQL async calls for instant messaging apps

      • Zaphod@discuss.tchncs.de
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        53 minutes ago

        Oh on a technical level yes. But on the surface it’s still asynchronous, as long as you can’t tell whether the other person has read your message (which, to be fair, a lot of messaging applications have as a feature)