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Detecting Missed Realtime Messages in Workspace Presence by Refetching Authoritative State

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A developer article argues that a connected socket does not prove a displayed participant roster is current, so clients should track the last accepted sequence number. When a gap appears, the client should replace its view with authoritative state rather than reconstruct it from partial events. The author uses a hypothetical auction workspace scenario, with Go as the illustrative language, to show how a client can distinguish a repaired roster from one that only resumed receiving traffic. The piece stresses that sequence numbers need a clear application contract, including a single ordered domain and snapshots that state the sequence they cover. It also recommends refetching after reconnects and tracking unresolved recoveries as a visible failure condition rather than relying on gap frequency alone.

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