MessagingService publishing multiple times | Roblox Studio Community | Page 1

undone spire Oct 10, 2025, 6:07 AM

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MessagingService:SubscribeAsync("Events", function(message)
    local success, data = pcall(function()
        return typeof(message.Data) == "table" and message.Data or HttpService:JSONDecode(message.Data)
    end)
    
    if not success or not data.EventId then
        warn("[Event Subscriber] Invalid message:", message.Data)
        return
    end
    
    if processedEvents[data.EventId] then
        warn("[Event Subscriber] Duplicate event ignored:", data.EventName)
        return
    end
    
    processedEvents[data.EventId] = true
    print("[Event Subscriber] Received event:", data.EventName, "ID:", data.EventId)

    adminEvent(data.EventName)
    
    task.delay(600, function()
        processedEvents[data.EventId] = nil
    end)
end)

This part is where I subscribe

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elseif action == "Events" then
            print("[AdminAction] Publishing Event:", other)

            local HttpService = game:GetService("HttpService")
            local eventId = HttpService:GenerateGUID(false)
            local eventData = {
                EventName = other,
                EventId = eventId,
                Timestamp = os.time()
            }
            
            local success, err = pcall(function()
                MessagingService:PublishAsync("Events", eventData)
            end)
            if not success then
                warn("Failed to publish Event:", err)
            end

This is where I publish

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It kind of get published 4-5 times? Maybe?

shell timber Oct 10, 2025, 6:18 AM

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undone spire ```lua elseif action == "Events" then print("[AdminAction] Publishin...

How often does print(“[adminAction…. print in the output (across both instances of the game (assuming that you’ve 2 open, else just on the 1)?

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Also, mind me asking in what kind of function that button code takes place?

undone spire Oct 10, 2025, 6:51 AM

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shell timber How often does print(“[adminAction…. print in the output (across both instances ...

Thats strange. It only print once when Im in the studios but it prints like 4-5 times on a real game

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Hm I cant send it

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It kind of receieves it like this:
events.AdminAction.OnServerInvoke = function(player, action, other)
local role = player:GetRoleInGroup(35254642):lower()
print(action, other)

if string.find(role, "developer") or string.find(role, "owner") or string.find(role, "holder") then

#

if action == "Events" then
print("[AdminAction] Publishing Event:", other)

        local HttpService = game:GetService("HttpService")
        local eventId = HttpService:GenerateGUID(false)
        local eventData = {
            EventName = other,
            EventId = eventId,
            Timestamp = os.time()
        }
        
        local success, err = pcall(function()
            MessagingService:PublishAsync("Events", eventData)
        end)
        if not success then
            warn("Failed to publish Event:", err)
        end

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@shell timber nevermind that it only prints once

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But it seems to be subscribing multiple times

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MessagingService:SubscribeAsync("Events", function(message)
    local success, data = pcall(function()
        return typeof(message.Data) == "table" and message.Data or HttpService:JSONDecode(message.Data)
    end)
    
    if not success or not data.EventId then
        warn("[Event Subscriber] Invalid message:", message.Data)
        return
    end
    
    if processedEvents[data.EventId] then
        warn("[Event Subscriber] Duplicate event ignored:", data.EventName)
        return
    end
    
    processedEvents[data.EventId] = true
    print("[Event Subscriber] Received event:", data.EventName, "ID:", data.EventId)

    adminEvent(data.EventName)
    
    task.delay(600, function()
        processedEvents[data.EventId] = nil
    end)
end)

shell timber Oct 10, 2025, 6:55 AM

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When does it subscribe?

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(Or well, I can see it in the code of course. But is it just at the start of runtime or is this all inside a module)

undone spire Oct 10, 2025, 6:56 AM

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It subscribe the moment I publish it ill send a video if u want

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This is all inside the same piece of script (serverscriptservice)

shell timber Oct 10, 2025, 6:56 AM

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undone spire This is all inside the same piece of script (serverscriptservice)

A server script or a module script?

undone spire Oct 10, 2025, 6:57 AM

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serverscript

shell timber Oct 10, 2025, 6:57 AM

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So it only subscribes on that first line, which gets ran once. Right?

undone spire Oct 10, 2025, 6:58 AM

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Yes but it does the action multiple times

shell timber Oct 10, 2025, 6:58 AM

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Let me grab my laptop, may be easier to read on there

undone spire Oct 10, 2025, 7:01 AM

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Huh why is it like this

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MessagingService:SubscribeAsync("Events", function(message)
    local success, data = pcall(function()
        return typeof(message.Data) == "table" and message.Data or HttpService:JSONDecode(message.Data)
    end)
    
    if not success or not data.EventId then
        warn("[Event Subscriber] Invalid message:", message.Data)
        return
    end
    
    if processedEvents[data.EventId] then
        warn("[Event Subscriber] Duplicate event ignored:", data.EventName)
        return
    end
    
    processedEvents[data.EventId] = true
    print("[Event Subscriber] Received event:", data.EventName, "ID:", data.EventId)

    adminEvent(data.EventName)
    
    task.delay(600, function()
        processedEvents[data.EventId] = nil
    end)
end)

Part where I subscribe

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Idk why I cant send full code

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📎 Admin.txt

shell timber Oct 10, 2025, 7:03 AM

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Uh that video is just the script...

undone spire Oct 10, 2025, 7:04 AM

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Oops wrong file

plucky harnessBOT Oct 10, 2025, 7:04 AM

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studio ** You are now Level 16! ** studio

shell timber Oct 10, 2025, 7:06 AM

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So, to quickly recap:

print("[Event Subscriber] Received event:", data.EventName, "ID:", data.EventId)

prints multiple times. Yet

print("[AdminAction] Publishing Event:", other)

only prints once,
right?

undone spire Oct 10, 2025, 7:08 AM

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Hm

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It prints [AdminAction] once

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And it only seems to recieve it once?

shell timber Oct 10, 2025, 7:11 AM

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undone spire ```lua MessagingService:SubscribeAsync("Events", function(message) local suc...

And the [event sub] multiple times... I mean, the only real thing I can think of would be that this code gets ran multiple times for some reason

shell timber Oct 10, 2025, 7:12 AM

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undone spire And it only seems to recieve it once?

Wait, so then it's working? no?

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fires once, receives once?

undone spire Oct 10, 2025, 7:12 AM

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Yep but does the action multiple times

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This part I think if I havent shown you

local function adminEvent(eventName)
    events.ShowNotification:FireAllClients("Event Triggered: " .. eventName)

    if eventName == "PigFrenzy" then
        local pigFrenzyCounter = 0
        repeat
            pigFrenzyCounter += 1
            spawnPiggy(nil, "Penny")
            task.wait(0.5)
            spawnPiggy(nil, "Georgie")
            task.wait(0.5)
            spawnPiggy(nil, "Mother")
            task.wait(0.5)
            spawnPiggy(nil, "Father")
            task.wait(0.5)
            spawnPiggy(nil, "Skelly")
            task.wait(0.5)
            spawnPiggy(nil, "Teacher")
            task.wait(0.5)
            spawnPiggy(nil, "Sheepy")
            task.wait(0.5)
            spawnPiggy(nil, "Mimi")
            task.wait(0.5)
            spawnPiggy(nil, "Doggy")
            task.wait(0.5)
            spawnPiggy(nil, "Bunny")
            task.wait(0.5)
            spawnPiggy(nil, "Owell")
            task.wait(0.5)
            spawnPiggy(nil, "Robby")
            task.wait(0.5)
        until pigFrenzyCounter == 2

    elseif eventName == "LegendaryParade" then
        local legendaryCounter = 0
        repeat
            spawnPiggy("Legendary", nil)
            legendaryCounter += 1
            task.wait(0.5)
        until legendaryCounter == 5
    end
end

shell timber Oct 10, 2025, 7:13 AM

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undone spire This part I think if I havent shown you ```lua local function adminEvent(eventNa...

Ah yes, I was just now looking for that part

undone spire Oct 10, 2025, 7:13 AM

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https://streamable.com/jueq4z

Streamable

Watch 2025-10-10 14-06-36 | Streamable

Watch "2025-10-10 14-06-36" on Streamable.

▶ Play video

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the events.ShowNotification:FireAllClients("Event Triggered: " .. eventName runs multiple times

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Which I call the function here

MessagingService:SubscribeAsync("Events", function(message)
    local success, data = pcall(function()
        return typeof(message.Data) == "table" and message.Data or HttpService:JSONDecode(message.Data)
    end)
    
    if not success or not data.EventId then
        warn("[Event Subscriber] Invalid message:", message.Data)
        return
    end
    
    if processedEvents[data.EventId] then
        warn("[Event Subscriber] Duplicate event ignored:", data.EventName)
        return
    end
    
    processedEvents[data.EventId] = true
    print("[Event Subscriber] Received event:", data.EventName, "ID:", data.EventId)

    adminEvent(data.EventName)
    
    task.delay(600, function()
        processedEvents[data.EventId] = nil
    end)
end)

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Sorry if Im sending the same code multiple times

shell timber Oct 10, 2025, 7:15 AM

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undone spire Which I call the function here ```lua MessagingService:SubscribeAsync("Events", ...

is this the only place it ever gets called?

undone spire Oct 10, 2025, 7:15 AM

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Yep

shell timber Oct 10, 2025, 7:16 AM

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But the print above the call only gets printed once?

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No wait, it printed twice

undone spire Oct 10, 2025, 7:17 AM

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No that was earlier testing

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In the streamable video it was another test which I forgot to record

shell timber Oct 10, 2025, 7:17 AM

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So it prints once but gives the noti twice?

undone spire Oct 10, 2025, 7:18 AM

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Yeah it prints once and give the notification more than twice but im assuming the adminEvent function is ran multiple times

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[Event Subscriber] Received event: is ran once

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But adminEvent is probably ran multiple times

shell timber Oct 10, 2025, 7:19 AM

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Just to be sure, mind adding a debug print into the adminEvent func and seeing if that also prints multiple times

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as this could be caused by an issue with the notification handling

undone spire Oct 10, 2025, 7:21 AM

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Oh youre right

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local function adminEvent(eventName)
    print("Admin Event Triggered")
    events.ShowNotification:FireAllClients("Event Triggered: " .. eventName)

    if eventName == "PigFrenzy" then
        local pigFrenzyCounter = 0
        repeat
            pigFrenzyCounter += 1
            spawnPiggy(nil, "Penny")
            task.wait(0.5)
            spawnPiggy(nil, "Georgie")
            task.wait(0.5)
            spawnPiggy(nil, "Mother")
            task.wait(0.5)
            spawnPiggy(nil, "Father")
            task.wait(0.5)
            spawnPiggy(nil, "Skelly")
            task.wait(0.5)
            spawnPiggy(nil, "Teacher")
            task.wait(0.5)
            spawnPiggy(nil, "Sheepy")
            task.wait(0.5)
            spawnPiggy(nil, "Mimi")
            task.wait(0.5)
            spawnPiggy(nil, "Doggy")
            task.wait(0.5)
            spawnPiggy(nil, "Bunny")
            task.wait(0.5)
            spawnPiggy(nil, "Owell")
            task.wait(0.5)
            spawnPiggy(nil, "Robby")
            task.wait(0.5)
        until pigFrenzyCounter == 2

    elseif eventName == "LegendaryParade" then
        local legendaryCounter = 0
        repeat
            spawnPiggy("Legendary", nil)
            legendaryCounter += 1
            task.wait(0.5)
        until legendaryCounter == 5
    end
end

I added the print "Admin Event Triggered" and it only printed ONCE

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But the events.ShowNotification:FireAllClients() is fired like 5 times

shell timber Oct 10, 2025, 7:23 AM

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Mind showing where you handle that RE?

undone spire Oct 10, 2025, 7:24 AM

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local ReplicatedStorage = game:GetService("ReplicatedStorage")
local TweenService = game:GetService("TweenService")

local events = ReplicatedStorage:WaitForChild("Events")

local frame = script.Parent

events.ShowNotification.OnClientEvent:Connect(function(text, level)
    if level == "Cash" then
        script.Purchase:Play()
        return
    end
    local notification = frame.Template:Clone()
    notification.Parent = frame
    notification.Name = text
    notification.Text = text
    notification.UIScale.Scale = 0
    notification.Visible = true
    if level == 2 then
        script.Steal:Play()
        notification.TextColor3 = Color3.fromRGB(255, 0, 0)
    elseif level == 1 then
        script.Error:Play()
        notification.TextColor3 = Color3.fromRGB(255, 0, 0)
    elseif level == 0 then
        script.Normal:Play()
        notification.TextColor3 = Color3.fromRGB(255, 255, 255)
    end
    TweenService:Create(notification.UIScale, TweenInfo.new(0.5, Enum.EasingStyle.Exponential, Enum.EasingDirection.InOut, 0, false, 0), {Scale = 1}):Play()
    task.wait(4)
    TweenService:Create(notification.UIScale, TweenInfo.new(0.5, Enum.EasingStyle.Exponential, Enum.EasingDirection.InOut, 0, false, 0), {Scale = 0}):Play()
    task.wait(0.5)
    notification:Destroy()
end)

I think its the function problem honestly

undone spire Oct 10, 2025, 7:24 AM

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undone spire ```lua local function adminEvent(eventName) print("Admin Event Triggered") ...

Anything below the events.ShowNotification runs multiple time

shell timber Oct 10, 2025, 7:29 AM

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Odd, I expected some kind of cache causing the issue to be frank. Mind me asking where this script is located?

undone spire Oct 10, 2025, 7:30 AM

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undone spire ```lua local ReplicatedStorage = game:GetService("ReplicatedStorage") local Twee...

This?

shell timber Oct 10, 2025, 7:30 AM

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yes

undone spire Oct 10, 2025, 7:30 AM

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undone spire ```lua local function adminEvent(eventName) print("Admin Event Triggered") ...

Or this

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Oh

undone spire Oct 10, 2025, 7:30 AM

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shell timber yes

starterplayerscripts

shell timber Oct 10, 2025, 7:31 AM

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Odd, then it's not some gc issue neither... fucking hell...

undone spire Oct 10, 2025, 7:31 AM

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Yeah its fine in roblox studios

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But it triggers a lot of times in the main game

shell timber Oct 10, 2025, 7:32 AM

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Does it print anything differently in the game?

undone spire Oct 10, 2025, 7:32 AM

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No not really

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Its just that block

shell timber Oct 10, 2025, 7:33 AM

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So every debug print still only prints once?

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I mean, the only real thing I can think of is multiple instances of that same local script existing

#MessagingService publishing multiple times