ND_Core/ND_Doorlocks/source/server.lua

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local updatedDoors = {}

RegisterNetEvent("ND_Doorlocks:syncDoor")
AddEventHandler("ND_Doorlocks:syncDoor", function(doorID, state)
    updatedDoors[doorID] = state
    TriggerClientEvent("ND_Doorlocks:syncDoor", -1, doorID, state)
end)

RegisterNetEvent("ND_Doorlocks:getDoors")
AddEventHandler("ND_Doorlocks:getDoors", function()
    local player = source
    TriggerClientEvent("ND_Doorlocks:returnDoors", player, updatedDoors)
end)