Unity Cloud Minimal Example

Build a minimal Unity demo showcasing all VIVERSE Cloud SDK features. Includes simplified UI setup and complete testing workflow for Cloud Save and UserApp APIs.

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Prerequisites

• Unity 2021 LTS or newer (install the WebGL module if you plan to target WebGL)

• App ID from VIVERSE Studio (https://worlds.viverse.com/)

• VIVERSE login/auth unitypackage (e.g., SDK_v0.96.unitypackage)

• User must be logged in via LoginManager before using Cloud SDK features

Quick Start: Download Pre-built Cloud SDK Sample

If you prefer to use a pre-configured cloud SDK sample instead of building it manually, you can download a ready-to-use Unity package that includes the complete cloud SDK UI setup and scene.

Download the Cloud SDK Sample Package: Cloud_Documentation_Sample.unitypackage

Important Import Order: You must import the packages in this specific order to avoid missing dependencies:

1. First: Import the VIVERSE SDK Unity package (SDK_v0.96.unitypackage)

   • Assets → Import Package → Custom Package… → Select your SDK package → Import

2. Second: Import TextMeshPro (if not already in your project)

   • Window → TextMeshPro → Import TMP Essential Resources

3. Third: Import the Cloud SDK Sample package

   • Assets → Import Package → Custom Package… → Select Cloud_Documentation_Sample.unitypackage → Import

After importing all three packages, open the Login_Leaderboard_Sample scene from Assets/Scenes/ to see the complete cloud SDK example in action.

Note: If you prefer to build the cloud SDK UI manually step-by-step, continue with the instructions below starting from Step 1.

Step 1. Import the VIVERSE package

1

Open Unity

Create new project within Unity or use existing project with LoginManager already set up.

2

Import VIVERSE Unity Package

Assets → Import Package → Custom Package…, select the VIVERSE unity package, click Import.

3

Review Added Scripts

Scripts such as LoginManager.cs, CloudSaveService.cs, HttpServer.cs, and ViverseSDK 1.jslib are now available—no code edits needed.

Step 2. Setup Login (Required for Cloud SDK)

1

Setup Login First

The Cloud SDK requires authentication. Follow the Login & Authentication guide to set up:

• LoginManager component

• Login UI with Login button

• App ID configuration

• HttpServer component (for Editor/Windows testing)

Ensure you can successfully log in before proceeding to Cloud SDK setup. In the screenshot below, we've created a prefab from the LoginPanel that gets built in the Login & Authentication guide. We've exported the prefab along with LoginUIController.cs.

Step 3. Build the Cloud SDK UI

1

Setup Canvas

A. GameObject → UI → Canvas (name it CloudSaveCanvas).

B. Leave the auto-created EventSystem in the scene.

C. Configure CloudSaveCanvas:

• Render Mode: Screen Space - Overlay

• Canvas Scaler → UI Scale Mode: Scale With Screen Size, Reference Resolution: 1920×1080

2

Create Main Container

A. Right-click CloudSaveCanvas → Create Empty → rename to MainContainer

B. Add Component → Layout → Vertical Layout Group

C. Set Vertical Layout Group properties:

• Child Alignment: Upper Left

• Padding: Left = 20, Right = 20, Top = 20, Bottom = 60

• Spacing: 30

• Child Force Expand: Width = true, Height = false

D. In RectTransform, set Anchor Presets to stretch-stretch (hold Alt+Shift), then set all margins to 0

3

Create Panels Structure

A. Create Status Bar Container:

• Right-click MainContainer → Create Empty → rename to StatusBar

• Add Component → Layout → Horizontal Layout Group

• Set Horizontal Layout Group properties:

  • Child Alignment: Middle Left

  • Padding: Left = 20, Right = 20, Top = 10, Bottom = 10

  • Spacing: 0

• In RectTransform, set Height = 40

• Add Component → Layout → Layout Element

• Set Layout Element: Preferred Height = 40, Flexible Height = 0, Flexible Width = 1

B. Create Left Panel (Cloud Save Section):

• Right-click MainContainer → Create Empty → rename to CloudSavePanel

• Add Component → Layout → Vertical Layout Group

• Set Vertical Layout Group properties:

  • Child Alignment: Upper Left

  • Padding: All = 15

  • Spacing: 10

  • Child Force Expand: Width = true, Height = false

• In RectTransform, set Width = 450, Height = 400

• Add Component → Layout → Layout Element

• Set Layout Element: Preferred Width = 450, Preferred Height = 400

C. Create Right Panel (UserApp Section):

• Right-click MainContainer → Create Empty → rename to UserAppPanel

• Add Component → Layout → Vertical Layout Group

• Set Vertical Layout Group properties:

  • Child Alignment: Upper Left

  • Padding: All = 15

  • Spacing: 10

  • Child Force Expand: Width = true, Height = false

• In RectTransform, set Width = 450, Height = 400

• Add Component → Layout → Layout Element

• Set Layout Element: Preferred Width = 450, Preferred Height = 400

D. Create Horizontal Container:

• Right-click MainContainer → Create Empty → rename to ContentRow

• Add Component → Layout → Horizontal Layout Group

• Set Horizontal Layout Group properties:

  • Child Alignment: Upper Left

  • Padding: All = 0

  • Spacing: 30

  • Child Force Expand: Width = false, Height = false

• Move CloudSavePanel and UserAppPanel to be children of ContentRow (drag in Hierarchy)

4

Create Cloud Save Section UI

A. Create Section Header:

• Right-click CloudSavePanel → UI → Text - TextMeshPro → rename to CloudSaveHeader

• Text: "Cloud Save API"

• Font Size: 24, Font Style: Bold

• Alignment: Center

• In RectTransform, set Height = 35

B. Create Buttons:

• Right-click CloudSavePanel → UI → Button (TextMeshPro) → rename to LoadButton

  • Change button text to "Load Cloud Save"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

• Right-click CloudSavePanel → UI → Button (TextMeshPro) → rename to SaveButton

  • Change button text to "Save to Cloud"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

C. Create Data Display:

• Right-click CloudSavePanel → UI → Text - TextMeshPro → rename to CloudSaveDataText

• Text: "No data loaded"

• Font Size: 12

• Alignment: Left

• In RectTransform, set Width = 420, Height = 250

• Set Text Wrapping Mode to Normal

• Add Component → Layout → Layout Element

• Set Layout Element: Preferred Height = 250, Flexible Height = 1

5

Create UserApp Section UI

A. Create Section Header:

• Right-click UserAppPanel → UI → Text - TextMeshPro → rename to UserAppHeader

• Text: "UserApp API"

• Font Size: 24, Font Style: Bold

• Alignment: Center

• In RectTransform, set Height = 35

B. Create Buttons:

• Right-click UserAppPanel → UI → Button (TextMeshPro) → rename to GetLatestButton

  • Change button text to "Get Latest"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

• Right-click UserAppPanel → UI → Button (TextMeshPro) → rename to SaveUserAppButton

  • Change button text to "Save User Data"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

• Right-click UserAppPanel → UI → Button (TextMeshPro) → rename to GetAllButton

  • Change button text to "Get All Records"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

• Right-click UserAppPanel → UI → Button (TextMeshPro) → rename to DeleteButton

  • Change button text to "Delete Version"

  • Font Size: 16

  • In the button's RectTransform, set Height = 40

C. Create Input Fields Container:

• Right-click UserAppPanel → Create Empty → rename to InputFieldsContainer

  • Add Component → Layout → Vertical Layout Group

  • Set Vertical Layout Group properties:

    • Spacing: 8

    • Padding: Top = 5, Bottom = 5

    • Child Force Expand: Width = true, Height = false

  • In RectTransform, set Height = 125

D. Create Input Fields:

• Right-click InputFieldsContainer → UI → Input Field - TextMeshPro → rename to LevelInput

  • Placeholder text: "Level"

  • Font Size: 14

  • In the input field's RectTransform, set Height = 35

• Right-click InputFieldsContainer → UI → Input Field - TextMeshPro → rename to ScoreInput

  • Placeholder text: "Score"

  • Font Size: 14

  • In the input field's RectTransform, set Height = 35

• Right-click InputFieldsContainer → UI → Input Field - TextMeshPro → rename to VersionInput

  • Placeholder text: "Version (for delete)"

  • Font Size: 14

  • In the input field's RectTransform, set Height = 35

E. Create Data Display:

• Right-click UserAppPanel → UI → Text - TextMeshPro → rename to UserAppDataText

• Text: "No data loaded"

• Font Size: 12

• Alignment: Left

• In RectTransform, set Width = 420, Height = 200

• Set Text Wrapping Mode to Normal

• Add Component → Layout → Layout Element

• Set Layout Element: Preferred Height = 200, Flexible Height = 1

6

Create Status Bar

A. Right-click StatusBar → UI → Text - TextMeshPro → rename to StatusText

B. Text: "Status: Ready - Please login first"

C. Font Size: 14

D. Alignment: Center

E. In the text's RectTransform, set Width = 800, Height = 30

F. Add Component → Layout → Layout Element

G. Set Layout Element: Preferred Width = 800, Flexible Width = 1

7

Verify UI Setup

A. Check Hierarchy Structure: Your Hierarchy should look like:

CloudSaveCanvas
├── EventSystem
└── MainContainer
    ├── StatusBar
    │   └── StatusText
    └── ContentRow
        ├── CloudSavePanel
        │   ├── CloudSaveHeader
        │   ├── LoadButton
        │   ├── SaveButton
        │   └── CloudSaveDataText
        └── UserAppPanel
            ├── UserAppHeader
            ├── GetLatestButton
            ├── SaveUserAppButton
            ├── GetAllButton
            ├── DeleteButton
            ├── InputFieldsContainer
            │   ├── LevelInput
            │   ├── ScoreInput
            │   └── VersionInput
            └── UserAppDataText

B. Test Layout:

• Press Play to see your UI in the Game view

• Verify all elements are visible and properly organized

• Check that panels are side-by-side with proper spacing

• Verify status bar is at the top

C. Fine-tune if needed:

• Adjust spacing in Layout Groups if elements are too close/far

• Modify panel widths if content doesn't fit

• Adjust font sizes for better readability

• Use RectTransform anchors for responsive positioning

D. Stop Play mode before continuing to next step.

Step 4. Add the Cloud SDK controller script

1

Create CloudSaveController GameObject

Under CloudSaveCanvas, create an empty GameObject named CloudSaveController.

2

Add CloudSaveUIController Script

Add this script to CloudSaveController:

using UnityEngine;
using UnityEngine.UI;
using TMPro;
using ViverseSDK.Login;
using ViverseSDK.CloudSave;
using System.Collections.Generic;

/// <summary>
/// Handles the UI layer for VIVERSE Cloud SDK.
/// Demonstrates all Cloud SDK features: Cloud Save API and UserApp API.
/// </summary>
[RequireComponent(typeof(CloudSaveService))]
public class CloudSaveUIController : MonoBehaviour
{
    [Header("App Settings")]
    [SerializeField]
    private string appId;         // Your VIVERSE App ID (assign in Inspector)

    [Header("UI References - Cloud Save API")]
    [SerializeField] private Button loadButton;
    [SerializeField] private Button saveButton;
    [SerializeField] private TMP_Text cloudSaveDataText;

    [Header("UI References - UserApp API")]
    [SerializeField] private Button getLatestButton;
    [SerializeField] private Button saveUserAppButton;
    [SerializeField] private Button getAllButton;
    [SerializeField] private Button deleteButton;
    [SerializeField] private TMP_InputField levelInput;
    [SerializeField] private TMP_InputField scoreInput;
    [SerializeField] private TMP_InputField versionInput;
    [SerializeField] private TMP_Text userAppDataText;

    [Header("Status")]
    [SerializeField] private TMP_Text statusText;

    [Header("Sample Data")]
    [SerializeField] private int sampleLevel = 12;
    [SerializeField] private string sampleClass = "warrior";
    [SerializeField] private List<string> sampleInventory = new List<string> { "sword", "shield", "potion" };
    [SerializeField] private int sampleScore = 600;

    private CloudSaveService cloudSaveService;
    private LoginManager loginManager;

    // Current loaded data
    private CloudSaveService.CloudSaveResponseWrapper currentCloudData;
    private CloudSaveService.UserAppLatestResponse currentLatestData;
    private List<CloudSaveService.UserAppData> currentAllData = new List<CloudSaveService.UserAppData>();

    private void Awake()
    {
        // Get required components
        cloudSaveService = GetComponent<CloudSaveService>();
        loginManager = FindObjectOfType<LoginManager>();

        if (loginManager == null)
        {
            Debug.LogError("[CloudSaveUI] LoginManager not found! Cloud SDK requires login.");
        }

        // Wire up button handlers
        SetupButtons();
    }

    private void Start()
    {
        // Subscribe to CloudSaveService events
        SubscribeToEvents();

        // Subscribe to LoginManager events
        if (loginManager != null)
        {
            loginManager.OnLoginStateChanged += OnLoginStateChanged;
        }

        // Initialize UI state
        UpdateStatus("Ready - Please login first");
        UpdateButtonStates(false);
    }

    private void SetupButtons()
    {
        // Cloud Save API buttons
        if (loadButton != null)
            loadButton.onClick.AddListener(OnLoadCloudSave);
        if (saveButton != null)
            saveButton.onClick.AddListener(OnSaveCloudSave);

        // UserApp API buttons
        if (getLatestButton != null)
            getLatestButton.onClick.AddListener(OnGetLatest);
        if (saveUserAppButton != null)
            saveUserAppButton.onClick.AddListener(OnSaveUserApp);
        if (getAllButton != null)
            getAllButton.onClick.AddListener(OnGetAll);
        if (deleteButton != null)
            deleteButton.onClick.AddListener(OnDeleteVersion);
    }

    private void SubscribeToEvents()
    {
        if (cloudSaveService == null) return;

        // Cloud Save API events
        cloudSaveService.OnFullDataLoaded += OnCloudDataLoaded;
        cloudSaveService.OnSaveCompleted += OnCloudSaveCompleted;
        cloudSaveService.OnStatusUpdated += OnStatusUpdated;

        // UserApp API events
        cloudSaveService.OnUserAppLatestLoaded += OnUserAppLatestLoaded;
        cloudSaveService.OnUserAppAllLoaded += OnUserAppAllLoaded;
        cloudSaveService.OnUserAppSaveCompleted += OnUserAppSaveCompleted;
        cloudSaveService.OnUserAppDeleteCompleted += OnUserAppDeleteCompleted;
    }

    private void OnDestroy()
    {
        // Unsubscribe from events
        if (cloudSaveService != null)
        {
            cloudSaveService.OnFullDataLoaded -= OnCloudDataLoaded;
            cloudSaveService.OnSaveCompleted -= OnCloudSaveCompleted;
            cloudSaveService.OnStatusUpdated -= OnStatusUpdated;
            cloudSaveService.OnUserAppLatestLoaded -= OnUserAppLatestLoaded;
            cloudSaveService.OnUserAppAllLoaded -= OnUserAppAllLoaded;
            cloudSaveService.OnUserAppSaveCompleted -= OnUserAppSaveCompleted;
            cloudSaveService.OnUserAppDeleteCompleted -= OnUserAppDeleteCompleted;
        }

        if (loginManager != null)
        {
            loginManager.OnLoginStateChanged -= OnLoginStateChanged;
        }
    }

    // Cloud Save API Handlers
    private void OnLoadCloudSave()
    {
        if (!ValidateLogin()) return;
        UpdateStatus("Loading cloud save...");
        cloudSaveService.LoadCloudSave();
    }

    private void OnSaveCloudSave()
    {
        if (!ValidateLogin()) return;

        // Use current loaded data if available, otherwise use sample data
        CloudSaveService.CloudSaveData saveData;
        if (currentCloudData != null && currentCloudData.data?.userdata != null)
        {
            var userData = currentCloudData.data.userdata;
            saveData = new CloudSaveService.CloudSaveData
            {
                level = userData.level + 1, // Increment level for demo
                @class = userData.@class,
                inventory = new List<string>(userData.inventory)
            };
        }
        else
        {
            saveData = new CloudSaveService.CloudSaveData
            {
                level = sampleLevel,
                @class = sampleClass,
                inventory = new List<string>(sampleInventory)
            };
        }

        UpdateStatus($"Saving Level {saveData.level} {saveData.@class}...");
        cloudSaveService.SaveToCloud(saveData);
    }

    // UserApp API Handlers
    private void OnGetLatest()
    {
        if (!ValidateLogin()) return;
        UpdateStatus("Getting latest user data...");
        cloudSaveService.GetUserAppLatest();
    }

    private void OnSaveUserApp()
    {
        if (!ValidateLogin()) return;

        int level = sampleLevel;
        int score = sampleScore;

        if (levelInput != null && int.TryParse(levelInput.text, out int parsedLevel))
            level = parsedLevel;
        if (scoreInput != null && int.TryParse(scoreInput.text, out int parsedScore))
            score = parsedScore;

        UpdateStatus($"Saving user data - Level: {level}, Score: {score}...");
        cloudSaveService.SaveUserAppData(level, score);
    }

    private void OnGetAll()
    {
        if (!ValidateLogin()) return;
        UpdateStatus("Getting all user data...");
        cloudSaveService.GetUserAppAll();
    }

    private void OnDeleteVersion()
    {
        if (!ValidateLogin()) return;

        if (versionInput == null || !long.TryParse(versionInput.text, out long version) || version <= 0)
        {
            UpdateStatus("Please enter a valid version number");
            return;
        }

        UpdateStatus($"Deleting version {version}...");
        cloudSaveService.DeleteUserAppData(version);
    }

    // Event Handlers
    private void OnCloudDataLoaded(CloudSaveService.CloudSaveResponseWrapper response)
    {
        currentCloudData = response;
        if (response != null && response.data?.userdata != null)
        {
            var data = response.data.userdata;
            string inventoryText = data.inventory != null && data.inventory.Count > 0
                ? string.Join(", ", data.inventory)
                : "Empty";

            string displayText = $"=== CLOUD SAVE DATA ===\n" +
                               $"Record ID: {response.id}\n" +
                               $"User ID: {response.user_id}\n" +
                               $"App ID: {response.app_id}\n" +
                               $"\n=== GAME DATA ===\n" +
                               $"Level: {data.level}\n" +
                               $"Class: {data.@class}\n" +
                               $"Inventory: [{inventoryText}]\n" +
                               $"\n=== TIMESTAMPS ===\n" +
                               $"Last Updated: {data.last_updated}\n" +
                               $"Created: {response.created_at}\n" +
                               $"Updated: {response.updated_at}";

            if (cloudSaveDataText != null)
                cloudSaveDataText.text = displayText;

            UpdateStatus("Cloud save loaded successfully");
            Debug.Log("[CloudSaveUI] Cloud data loaded");
        }
        else
        {
            if (cloudSaveDataText != null)
                cloudSaveDataText.text = "No cloud save found";
            UpdateStatus("No cloud save data available");
        }
    }

    private void OnCloudSaveCompleted(bool success)
    {
        if (success)
        {
            UpdateStatus("Cloud save completed successfully");
            // Auto-reload to show updated data
            OnLoadCloudSave();
        }
        else
        {
            UpdateStatus("Cloud save failed");
        }
    }

    private void OnUserAppLatestLoaded(CloudSaveService.UserAppLatestResponse response)
    {
        currentLatestData = response;
        if (response != null)
        {
            string displayText = $"=== LATEST USER DATA ===\n" +
                               $"Level: {response.data.level}\n" +
                               $"Score: {response.data.score}\n" +
                               $"Version: {response.version}\n" +
                               $"Created: {response.created_at}";

            if (userAppDataText != null)
                userAppDataText.text = displayText;

            UpdateStatus("Latest user data loaded successfully");
            Debug.Log("[CloudSaveUI] Latest user app data loaded");
        }
        else
        {
            if (userAppDataText != null)
                userAppDataText.text = "No latest user data found";
            UpdateStatus("No latest user data available");
        }
    }

    private void OnUserAppAllLoaded(List<CloudSaveService.UserAppData> dataList)
    {
        currentAllData = dataList ?? new List<CloudSaveService.UserAppData>();
        
        if (currentAllData.Count > 0)
        {
            string displayText = $"=== ALL USER DATA ({currentAllData.Count} records) ===\n\n";
            for (int i = 0; i < currentAllData.Count; i++)
            {
                var record = currentAllData[i];
                displayText += $"Record {i + 1}:\n" +
                              $"  Level: {record.data.level}, Score: {record.data.score}\n" +
                              $"  Version: {record.version}\n" +
                              $"  Created: {record.created_at}\n\n";
            }

            if (userAppDataText != null)
                userAppDataText.text = displayText;

            UpdateStatus($"All user data loaded ({currentAllData.Count} records)");
            Debug.Log($"[CloudSaveUI] All user app data loaded - {currentAllData.Count} records");
        }
        else
        {
            if (userAppDataText != null)
                userAppDataText.text = "No user data records found";
            UpdateStatus("No user data records available");
        }
    }

    private void OnUserAppSaveCompleted(bool success)
    {
        if (success)
        {
            UpdateStatus("User data saved successfully");
            // Auto-refresh latest data
            OnGetLatest();
        }
        else
        {
            UpdateStatus("User data save failed");
        }
    }

    private void OnUserAppDeleteCompleted(bool success)
    {
        if (success)
        {
            UpdateStatus("User data deleted successfully");
            // Clear version input and refresh all data
            if (versionInput != null)
                versionInput.text = "";
            OnGetAll();
        }
        else
        {
            UpdateStatus("User data delete failed");
        }
    }

    private void OnStatusUpdated(string message)
    {
        UpdateStatus(message);
    }

    private void OnLoginStateChanged(bool isLoggedIn)
    {
        UpdateButtonStates(isLoggedIn);
        if (isLoggedIn)
        {
            UpdateStatus("Logged in - Ready to use Cloud SDK");
        }
        else
        {
            UpdateStatus("Please login to use Cloud SDK");
            ClearDisplayData();
        }
    }

    // Helper Methods
    private bool ValidateLogin()
    {
        if (loginManager == null)
        {
            UpdateStatus("LoginManager not found");
            return false;
        }

        if (!loginManager.IsLoggedIn)
        {
            UpdateStatus("Please login first");
            return false;
        }

        return true;
    }

    private void UpdateButtonStates(bool enabled)
    {
        if (loadButton != null) loadButton.interactable = enabled;
        if (saveButton != null) saveButton.interactable = enabled;
        if (getLatestButton != null) getLatestButton.interactable = enabled;
        if (saveUserAppButton != null) saveUserAppButton.interactable = enabled;
        if (getAllButton != null) getAllButton.interactable = enabled;
        if (deleteButton != null) deleteButton.interactable = enabled;
    }

    private void UpdateStatus(string message)
    {
        if (statusText != null)
            statusText.text = $"Status: {message}";
        Debug.Log($"[CloudSaveUI] {message}");
    }

    private void ClearDisplayData()
    {
        if (cloudSaveDataText != null)
            cloudSaveDataText.text = "No data loaded";
        if (userAppDataText != null)
            userAppDataText.text = "No data loaded";
        currentCloudData = null;
        currentLatestData = null;
        currentAllData.Clear();
    }
}

3

Wire Serialized Fields

1. Select CloudSaveController in Hierarchy.

2. In Inspector, you'll see CloudSaveUIController component with many empty fields.

3. Set App Id field → enter your VIVERSE App ID (same one used for LoginManager).

4. Drag UI elements from Hierarchy into the corresponding fields:

   • Load Button → drag LoadButton from Hierarchy

   • Save Button → drag SaveButton from Hierarchy

   • Cloud Save Data Text → drag CloudSaveDataText from Hierarchy

   • Get Latest Button → drag GetLatestButton from Hierarchy

   • Save User App Button → drag SaveUserAppButton from Hierarchy

   • Get All Button → drag GetAllButton from Hierarchy

   • Delete Button → drag DeleteButton from Hierarchy

   • Level Input → drag LevelInput from Hierarchy

   • Score Input → drag ScoreInput from Hierarchy

   • Version Input → drag VersionInput from Hierarchy

   • User App Data Text → drag UserAppDataText from Hierarchy

   • Status Text → drag StatusText from Hierarchy

Tip: You can also use the circle target picker next to each field to select objects from a popup window.

Step 5. Test all Cloud SDK features

1

Test Cloud Save API

1. Press Play in Unity Editor.

2. Click Login (from your LoginManager setup) and complete authentication in the browser.

3. Wait for login to complete—StatusText should show "Logged in - Ready to use Cloud SDK".

4. Test Cloud Save operations:

   • Click Load Cloud Save → Check CloudSaveDataText. First time will show "No cloud save found".

   • Click Save to Cloud → StatusText should show "Cloud save completed successfully", then data auto-loads.

   • Check CloudSaveDataText → Should now show saved data with level, class, inventory, and timestamps.

   • Click Save to Cloud again → Level should increment, data updates.

What to verify:

• ✅ Buttons work when logged in

• ✅ Load shows data or "No cloud save found"

• ✅ Save completes successfully

• ✅ Data displays correctly in CloudSaveDataText

• ✅ StatusText shows operation status

2

Test UserApp API (Versioned)

1. With user logged in, test UserApp API features:

   Get Latest:

   • Click Get Latest button

   • Check UserAppDataText → Should show latest level, score, version number, and timestamp

   • If no data exists, will show "No latest user data found"

   Save User Data:

   • Enter a level in LevelInput (e.g., "10")

   • Enter a score in ScoreInput (e.g., "500")

   • Click Save User Data button

   • StatusText should show "User data saved successfully"

   • UserAppDataText should auto-update with the new data

   • Note: Each save creates a new version number

   Get All Records:

   • Click Get All Records button

   • Check UserAppDataText → Should list all saved versions with their data

   • Note the version numbers shown

   Delete Version:

   • Copy a version number from the "Get All" results

   • Paste it into VersionInput field

   • Click Delete Version button

   • StatusText should show "User data deleted successfully"

   • UserAppDataText should auto-refresh showing the deleted record is gone

What to verify:

• ✅ Get Latest retrieves most recent data

• ✅ Save creates new versions (version numbers increment)

• ✅ Get All shows all historical records

• ✅ Delete removes the specified version

• ✅ StatusText shows operation results

3

Verify Feature Coverage

Ensure all Cloud SDK features are tested:

• ✅ Cloud Save API: Load

• ✅ Cloud Save API: Save

• ✅ UserApp API: Get Latest

• ✅ UserApp API: Save (creates version)

• ✅ UserApp API: Get All (version history)

• ✅ UserApp API: Delete by version

• ✅ Event system (status updates, completion callbacks)

• ✅ Error handling (no login, invalid data, network errors)

• ✅ Data persistence across sessions

Step 6. Build & deploy to VIVERSE

1

Switch to WebGL

Switch to WebGL (File → Build Settings → WebGL).

2

Build and Zip

Build; zip the output (index.html, Build/, TemplateData/ or StreamingAssets).

3

Upload to VIVERSE Studio

Upload the zip in VIVERSE Studio → Manage Content.

4

Preview and Submit

Preview and submit for approval. Test all Cloud SDK features in the VIVERSE environment.

Cloud SDK data contracts

Cloud Save API (Legacy)

CloudSaveData structure:

{
    public int level;
    public string @class;
    public List<string> inventory;
    public string last_updated;
}

CloudSaveResponseWrapper structure:

{
    public string id;              // Record ID
    public string user_id;         // User account ID
    public string app_id;          // Application ID
    public CloudSaveResponseData data;
    public string created_at;      // ISO timestamp
    public string updated_at;       // ISO timestamp
}

Note: Cloud Save API uses a single record per user/app. Saving overwrites existing data.

UserApp API (Versioned)

UserAppGameData structure:

{
    public int level;
    public int score;
}

UserAppLatestResponse structure:

{
    public string user_id;
    public string app_id;
    public UserAppGameData data;
    public long version;           // Incremental version number
    public string created_at;      // ISO timestamp
}

UserAppData structure (for Get All):

{
    public string user_id;
    public string app_id;
    public UserAppGameData data;
    public long version;
    public string created_at;
}

Note: UserApp API maintains version history. Each save creates a new version. Versions can be deleted individually.

Events

CloudSaveService provides these events:

• OnStatusUpdated(string message) - Status messages for UI feedback

• OnFullDataLoaded(CloudSaveResponseWrapper response) - Cloud Save data loaded

• OnSaveCompleted(bool success) - Cloud Save operation completed

• OnUserAppLatestLoaded(UserAppLatestResponse response) - Latest UserApp data loaded

• OnUserAppAllLoaded(List<UserAppData> dataList) - All UserApp records loaded

• OnUserAppSaveCompleted(bool success) - UserApp save completed

• OnUserAppDeleteCompleted(bool success) - UserApp delete completed

Authentication Requirements

All Cloud SDK operations require:

• Valid LoginManager instance in the scene

• User must be logged in (access token available)

• App ID must be configured in LoginManager

Cloud SDK automatically validates authentication before each operation and will show appropriate error messages if login is required.

Troubleshooting

Buttons don't work:

• Make sure you're logged in (StatusText should say "Logged in")

• Check that all UI references are wired in CloudSaveUIController Inspector

• Verify EventSystem exists in the scene (auto-created with Canvas)

"Please login first" error:

• Ensure LoginManager is in the scene and initialized

• Complete the login flow in browser (for Editor) or via WebGL

• Check that access token is saved (LoginManager.IsLoggedIn should be true)

UI elements not visible:

• Check Canvas Render Mode is "Screen Space - Overlay"

• Verify UI elements are children of the Canvas

• Try adjusting RectTransform positions in Inspector

• Check Game view resolution matches your screen

Data not saving/loading:

• Verify App ID is set correctly in CloudSaveUIController

• Check Unity Console for error messages

• Ensure network connection is available

• Verify LoginManager has valid access token

Text fields too small:

• Select the text field in Hierarchy

• In Inspector, expand RectTransform

• Increase Width and Height values

• Set Text Wrapping Mode to Normal for multi-line text display