Disable "Your friend ... has joined the experience" system messages on the new chat

[calvin_coco (where)]

I have looked at this topic:

Disabling roblox's Your Friend joined notification

If you fork (make a copy and put it in your game) the Lua chat system you can delete the part of ChatServiceRunner where it creates System channel. Either make it AutoJoin false or remove altogether. You might see errors in the output when it tries to send a message to this, but it doesn’t cause any problems. This will remove all system messages. If you want to keep the rest of the system messages, then you can fork the chat and delete the FriendJoinNotifier module in ChatModules. If you don’t…

But I’m pretty sure that technique is for the old chat because I cant find ChatModules and ChatServiceRunner, is there a way to do this on the new chat though? Thanks.

[GFink]

I’d like to know this as well, I’m making my own version of this notification.

[GFink]

Here’s a way to at least replace the default friend join message:

local FriendString = "Your friend (.+) has joined the experience."

game:GetService("TextChatService").OnIncomingMessage = function(chatMsg)
	local IsSystemMsg = not chatMsg.TextSource and #chatMsg.PrefixText == 0
	local IsFriendMsg = string.match(chatMsg.Text, FriendString) ~= nil
	if IsSystemMsg and IsFriendMsg then
		local newMsg = Instance.new("TextChatMessageProperties")
		newMsg.Text = "Friend Join Message Replaced"
		return newMsg
	end
end

I don’t know if there’s a way to delete it though.

[GFink]

Turns out Roblox actually attaches metadata to the message to mark a friend joining:

Here’s a better way of replacing the default friend join message:

local TextChatService = game:GetService("TextChatService")
local SystemChannel = TextChatService:WaitForChild("TextChannels"):WaitForChild("RBXSystem")

TextChatService.OnIncomingMessage = function(chatMessage)
	local IsFriendJoinedMsg = chatMessage.TextChannel == SystemChannel and chatMessage.Metadata == "Roblox.Notification.Friend.Joined"
	if IsFriendJoinedMsg then
		local newMsg = Instance.new("TextChatMessageProperties")
		newMsg.Text = "Friend Join Message Replaced"
		return newMsg
	end
end

and here’s that sick debug print string:

print("\n","MessageId:",chatMessage.MessageId,"\n","Metadata:",chatMessage.Metadata,"\n","PrefixText:",chatMessage.PrefixText,"\n","Status:",chatMessage.Status,"\n","Text:",chatMessage.Text,"\n","TextChannel:",chatMessage.TextChannel,"\n","TextSource:",chatMessage.TextSource,"\n","Timestamp:",chatMessage.Timestamp,"\n----------------")