How to get/create Datastore tables? [ANSWERED]

referencing or creating new data store name

local DataStore = game:GetService('DataStoreService'):GetDataStore('Name');
local Players = game:GetService('Players')

function to authenticate player ban status if true, banned, elseif false, not? :D

function RequestBanStatus(player)
    return DataStore:GetAsync(player.userId)
end

function to update playerId's data store depending on boolean argument

local SetBanState = function(playerId, boolean)
	DataStore:UpdateAsync(playerId ,function(state)
		if boolean == false then
			return false
		else
			return true
		end
	end)
end

calls RequestBanStatus function and kicks player if returned value true

Players.PlayerAdded:connect(function(player)
	if RequestBanStatus(player) then
		pcall(function()
			print(player,'banned')
		end)
	end
end)

You could also create a BindableEvent and connect it to the SetBanState function so that you can call it in your chat based administration scripts. You can also create a table within the script containing permanently banned userIds which you would of course add in the RequestBanStatus function in addition to the already existing check.

local DataStore = game:GetService('DataStoreService'):GetDataStore('Name');
local Players = game:GetService('Players')


local SetBanState = function(playerId, boolean)
	DataStore:UpdateAsync(playerId ,function(state)
		return boolean or state
	end)
end
function RequestBanStatus(player)
    return DataStore:GetAsync(player.userId) 
end

Players.PlayerAdded:connect(function(player)

	if RequestBanStatus(player) then
		pcall(function()
			warn('player, banned')
		end)
	end
end)