How do i update a datastore2 inventory?

So im trying to update datastore2 table when the script creates a new template but im not sure how to. Can someone help me?

local replicatedstorage = game:GetService("ReplicatedStorage")
local armormodule = require(game.ReplicatedStorage:WaitForChild("ArmorHandler"))


replicatedstorage.Events.UpdateInventory.OnClientEvent:Connect(function(player, armor)
	local template = script.Parent.MainGui.Inventory.Templates.Template
	local newTemplate = template:Clone()
	newTemplate.Parent =  script.Parent.MainGui.Inventory.Duplicates
	newTemplate.Visible = true

	local newArmor = armormodule.chooseRandom():Clone()

	local camera = Instance.new("Camera")
	camera.CFrame = CFrame.new(newArmor.PrimaryPart.Position + (newArmor.PrimaryPart.CFrame.lookVector * 3), newArmor.PrimaryPart.Position)
	camera.Parent = newTemplate.ViewportFrame
	newArmor.Parent = newTemplate.ViewportFrame

	newTemplate.ViewportFrame.CurrentCamera = camera
-- I want the inventory to update here
end)

If needed heres the datahandler

local replicatedStorage = game:GetService("ReplicatedStorage")
local ServerStorage = game:GetService("ServerStorage")
local HttpService = game:GetService("HttpService")
local Players = game:GetService("Players")

local DataStore2 = require(ServerStorage:WaitForChild("DataStore2"))

DataStore2.Combine("Data", "Inventory", "Currency", "Level", "Exp", "ExpToLevel")

local defaultLevel = 1
local defaultexp = 0
local DefaultCurrencyAmount = 0
local DefaultHealthAmount = 150
local defaultStrength = 10

local expToLevelUp = function(level)
	return tonumber(100 * math.exp(level))
end

game.Players.PlayerAdded:Connect(function(player)

	--All the DataStores in here--
	local InventoryStore = DataStore2("Inventory", player)
	local CurrencyStore = DataStore2("Currency", player)
	local ExpStore = DataStore2("Exp", player)
	local LevelStore = DataStore2("Level", player)
	local replicatedDataFolder = Instance.new("Folder")
	replicatedDataFolder.Parent = replicatedStorage.ReplicatedData
	replicatedDataFolder.Name = player.UserId


	---------------------------------------------
	--STARTING THE INVENTORY FUNCTION--
	local inventoryString = Instance.new("StringValue")
	inventoryString.Parent = replicatedDataFolder
	inventoryString.Name = "Inventory"

	--Leaderstats--
	local leaderstats = Instance.new("Folder", player)
	leaderstats.Name = "leaderstats"

	local LevelValue = Instance.new("IntValue", leaderstats)
	LevelValue.Name = "Level"

	local expValue = Instance.new("IntValue", leaderstats)
	expValue.Name = "Exp"
	
	local expToLevel = Instance.new("IntValue", leaderstats)
	expToLevel.Name = "ExpToLevel"
	
	local Warrior = Instance.new("IntValue",leaderstats)
	Warrior.Name = "War"	
	Warrior.Value = defaultStrength
	
	
	----------------------------------------------


	--Functions--

	local function updateLevel(amount)
		player.leaderstats.Level.Value = amount
		replicatedStorage.Events.UpdateClientLevel:FireClient(player, amount)
	end

	local function updateEXP(exp)
		if exp >= expToLevelUp(LevelStore:Get(defaultLevel)) then
			ExpStore:Increment(expToLevelUp(LevelStore:Get(defaultLevel)) * -1)
			LevelStore:Increment(1)
			game.Workspace["Level Up"]:Play()
			game.StarterGui.Level.LevelUP.Visible = true
			wait(1)
			game.StarterGui.Level.LevelUP.Visible = false
		else
			player.leaderstats.Exp.Value = exp
		end
		
		local expAtNextLevel = expToLevelUp(LevelStore:Get(defaultLevel))

		local currentlyHave = ExpStore:Get(defaultexp)

		player.leaderstats.ExpToLevel.Value = expAtNextLevel - currentlyHave
	
	end

	local inventoryData = InventoryStore:Get({})
	inventoryString.Value = HttpService:JSONEncode(inventoryData)

	InventoryStore:OnUpdate(function(decodedData)
		inventoryString.Value = HttpService:JSONEncode(decodedData)
	end)

	local function updateClientCurrency(amount)
		replicatedStorage.Events.UpdateClientCurrency:FireClient(player, amount)
	end

	updateClientCurrency(CurrencyStore:Get(DefaultCurrencyAmount))

	CurrencyStore:OnUpdate(updateClientCurrency)
	--call functions right away one time
	updateLevel(LevelStore:Get(defaultLevel))
	updateEXP(ExpStore:Get(defaultexp))

	LevelStore:OnUpdate(updateLevel)
	ExpStore:OnUpdate(updateEXP)
	
end)