Example
Leaderboard

Live leaderboard with compression, paginated fetch, and periodic push updates.
local scores = {}

app:Get("leaderboard", function(Player, Payload, req, res)
    local page  = tonumber(req.query.page) or 1
    local limit = math.min(tonumber(req.query.limit) or 10, 50)
    local sorted = {}
    for userId, score in pairs(scores) do
        table.insert(sorted, { userId = userId, score = score })
    end
    table.sort(sorted, function(a, b) return a.score > b.score end)
    local start = (page - 1) * limit + 1
    res:Send({ entries = { table.unpack(sorted, start, start + limit - 1) }, total = #sorted })
end, { compress = true })

app:Post("leaderboard/submit", function(Player, Payload, req, res)
    local score = req.data and req.data.score
    if type(score) ~= "number" then res:Status(400):Error("score required"); return end
    scores[Player.UserId] = math.max(scores[Player.UserId] or 0, score)
    res:Send({ best = scores[Player.UserId] })
end)

-- push top-10 update every 30 s
task.spawn(function()
    while true do
        task.wait(30)
        local sorted = {}
        for userId, score in pairs(scores) do
            table.insert(sorted, { userId = userId, score = score })
        end
        table.sort(sorted, function(a, b) return a.score > b.score end)
        app:PushAll("leaderboard.update", { table.unpack(sorted, 1, 10) })
    end
end)
Leaderboard

See also
