DeferAsync

Creates a temporary scope for async operations that cleans up automatically after all promises resolve.

TypeScript

const result = await vault.DeferAsync(async (scope) => {
    const part = new Instance("Part")
    scope.Add(part)
    
    const data = await fetchData()
    return data
})  

Luau

local result = await vault:DeferAsync(function(scope)
    local part = Instance.new("Part")
    scope:Add(part)
    
    local data = await fetchData()
    return data
end) 

Parameters

Parameter	Type	Description
callback	(scope: VaultDefer) => Promise<T>	Async function that receives a scope

Returns

Promise<T \| undefined> - The callback's resolved value, or undefined if error

Behavior

• Creates a child vault for the async operation
• Tracks all promises and cleans up only when all complete
• Scope resources are automatically cleaned after promises resolve/reject
• Handles both sync errors (pcall) and async errors (promise catch)
• Perfect for async operations with temporary resources