Can't pass objects from client-server?

Hello there,

I am working on my game right now, and just started working on the engine this week. I have a function that creates an object on the server, and then returns that object. It seems to work fine when I am returning the object from the server to the client, however, the part does not get returned when the situation is flipped around. I tried to return a part made on the client, but it wouldn't return the object and just kept returning nil.

So I am wondering if this is because of a roblox issue and I need to find an alternative to accomplish this task, or is it just something wrong with my code. I will post the code below so you can analyze exactly what I mean.

01-- Server - Client Function --
02local rs = game:GetService("ReplicatedStorage")
03local folder = rs:WaitForChild("Instance Work")
04local instance_func = folder:WaitForChild("Instance")
05 
06------------------------------------------------------  
07    -- Creates a part on the server --
08 
09local function instance(plr, obj, props)
10    local object = Instance.new(obj)
11 
12    for prop, value in next, props do
13        if prop == 'Parent' then
14            value = return_obj_from_string(value)
15        end
16 
17        object[prop] = value
18    end
19 
20    if object then return object end
21end
22 
23instance_func.OnServerInvoke = instance
24 
25    -- Creates a part on the server --
26------------------------------------------------------
 View all 26 lines...

The above will create an object on the server and then successfully return that object to the client.

01-- Client - Server Function --
02local rs = game:GetService("ReplicatedStorage")
03local folder = rs:WaitForChild("Instance Work")
04local instance_func = folder:WaitForChild("Instance")
05------------------------------------------------------  
06    -- Creates a part on the client --
07 
08local function instance(obj, props)
09    local object = Instance.new(obj)
10 
11    for prop, value in next, props do
12        if prop == 'Parent' then
13            value = return_obj_from_string(value)
14        end
15 
16        object[prop] = value
17    end
18 
19    if object then return object end
20end
21 
22instance_func.OnClientInvoke = instance
23 
24    -- Creates a part on the client --
25------------------------------------------------------
 View all 25 lines...

The above creates an object on the client, however, it fails to return the object to the server.

The code below is how I made the call to the client from the server and how it failed to return the part.

01-- Script inside Click Detector, which is inside a part and meant to activate the client function upon clicking the part --
02local detector = script.Parent;
03local rs = game:GetService("ReplicatedStorage");
04local instance_folder = rs:WaitForChild("Instance Work")
05local instance = instance_folder:WaitForChild("Instance")
06 
07detector.MouseClick:Connect(function(plr)
08    local char = plr.Character or plr.CharacterAdded:Wait();
09    local root = char:WaitForChild("HumanoidRootPart");
10    local props = {
11        ['BrickColor'] = BrickColor:random();
12        ['Transparency'] = math.random();
13        ['Anchored'] = true;
14        ['CanCollide'] = false;
15        ['Material'] = Enum.Material.Neon;
16        ['CFrame'] = root.CFrame;
17        ['Parent'] = workspace;
18        ['Name'] = 'Innovation';
19    }
20    print("It is:", instance:InvokeClient(plr, 'Part', props)) -- Prints "It is: nil"
21end)
 View all 21 lines...

Thank you for any help and hope you have a nice day/night.

Best regards,

IdealistDeveloper

you have to have the server create the object not the client. If you let the client handle it, the server would always receive it as nil. awesomeipod 607 — 6y

It's fine not to format everything. /shrug xPolarium 1388 — 6y

So, it is impossible for the server to get a reference to a part on the client? IdealistDeveloper 234 — 6y