Entity files - XBOX Game Development Documentation

Entity files enable you to read and write files attached to an entity, in any format. The following example demonstrates a full entity-file loop, from signing in, to loading a file, and uploading a new file.

#if !DISABLE_PLAYFABENTITY_API && !DISABLE_PLAYFABCLIENT_API

using PlayFab;
using PlayFab.Internal;
using System;
using System.Collections.Generic;
using System.Text;
using UnityEngine;

public class EntityFileExample : MonoBehaviour
{
    public string entityId; // Id representing the logged in player
    public string entityType; // entityType representing the logged in player
    private readonly Dictionary<string, string> _entityFileJson = new Dictionary<string, string>();
    private readonly Dictionary<string, string> _tempUpdates = new Dictionary<string, string>();
    public string ActiveUploadFileName;
    public string NewFileName;
    public int GlobalFileLock = 0; // Kind of cheap and simple way to handle this kind of lock

    void OnSharedFailure(PlayFabError error)
    {
        Debug.LogError(error.GenerateErrorReport());
        GlobalFileLock -= 1;
    }

    void OnGUI()
    {
        if (!PlayFabClientAPI.IsClientLoggedIn() && GUI.Button(new Rect(0, 0, 100, 30), "Login"))
            Login();
        if (PlayFabClientAPI.IsClientLoggedIn() && GUI.Button(new Rect(0, 0, 100, 30), "LogOut"))
            PlayFabClientAPI.ForgetAllCredentials();

        if (PlayFabClientAPI.IsClientLoggedIn() && GUI.Button(new Rect(100, 0, 100, 30), "(re)Load Files"))
            LoadAllFiles();

        if (PlayFabClientAPI.IsClientLoggedIn())
        {
            // Display existing files
            _tempUpdates.Clear();
            var index = 0;
            foreach (var each in _entityFileJson)
            {
                GUI.Label(new Rect(100 * index, 60, 100, 30), each.Key);
                var tempInput = _entityFileJson[each.Key];
                var tempOutput = GUI.TextField(new Rect(100 * index, 90, 100, 30), tempInput);
                if (tempInput != tempOutput)
                    _tempUpdates[each.Key] = tempOutput;
                if (GUI.Button(new Rect(100 * index, 120, 100, 30), "Save " + each.Key))
                    UploadFile(each.Key);
                index++;
            }
            // Apply any changes
            foreach (var each in _tempUpdates)
                _entityFileJson[each.Key] = each.Value;

            // Add a new file
            NewFileName = GUI.TextField(new Rect(100 * index, 60, 100, 30), NewFileName);
            if (GUI.Button(new Rect(100 * index, 90, 100, 60), "Create " + NewFileName))
                UploadFile(NewFileName);
        }
    }

    void Login()
    {
        var request = new PlayFab.ClientModels.LoginWithCustomIDRequest
        {
            CustomId = SystemInfo.deviceUniqueIdentifier,
            CreateAccount = true
        };
        PlayFabClientAPI.LoginWithCustomID(request, OnLogin, OnSharedFailure);
    }
    void OnLogin(PlayFab.ClientModels.LoginResult result)
    {
        entityId = result.EntityToken.Entity.Id;
        entityType = result.EntityToken.Entity.Type;
    }

    void LoadAllFiles()
    {
        if (GlobalFileLock != 0)
            throw new Exception("This example overly restricts file operations for safety. Careful consideration must be made when doing multiple file operations in parallel to avoid conflict.");

        GlobalFileLock += 1; // Start GetFiles
        var request = new PlayFab.DataModels.GetFilesRequest { Entity = new PlayFab.DataModels.EntityKey { Id = entityId, Type = entityType } };
        PlayFabDataAPI.GetFiles(request, OnGetFileMeta, OnSharedFailure);
    }
    void OnGetFileMeta(PlayFab.DataModels.GetFilesResponse result)
    {
        Debug.Log("Loading " + result.Metadata.Count + " files");

        _entityFileJson.Clear();
        foreach (var eachFilePair in result.Metadata)
        {
            _entityFileJson.Add(eachFilePair.Key, null);
            GetActualFile(eachFilePair.Value);
        }
        GlobalFileLock -= 1; // Finish GetFiles
    }
    void GetActualFile(PlayFab.DataModels.GetFileMetadata fileData)
    {
        GlobalFileLock += 1; // Start Each SimpleGetCall
        PlayFabHttp.SimpleGetCall(fileData.DownloadUrl,
            result => { _entityFileJson[fileData.FileName] = Encoding.UTF8.GetString(result); GlobalFileLock -= 1; }, // Finish Each SimpleGetCall
            error => { Debug.Log(error); }
        );
    }

    void UploadFile(string fileName)
    {
        if (GlobalFileLock != 0)
            throw new Exception("This example overly restricts file operations for safety. Careful consideration must be made when doing multiple file operations in parallel to avoid conflict.");

        ActiveUploadFileName = fileName;

        GlobalFileLock += 1; // Start InitiateFileUploads
        var request = new PlayFab.DataModels.InitiateFileUploadsRequest
        {
            Entity = new PlayFab.DataModels.EntityKey { Id = entityId, Type = entityType },
            FileNames = new List<string> { ActiveUploadFileName },
        };
        PlayFabDataAPI.InitiateFileUploads(request, OnInitFileUpload, OnInitFailed);
    }
    void OnInitFailed(PlayFabError error)
    {
        if (error.Error == PlayFabErrorCode.EntityFileOperationPending)
        {
            // This is an error you should handle when calling InitiateFileUploads, but your resolution path might vary
            GlobalFileLock += 1; // Start AbortFileUploads
            var request = new PlayFab.DataModels.AbortFileUploadsRequest
            {
                Entity = new PlayFab.DataModels.EntityKey { Id = entityId, Type = entityType },
                FileNames = new List<string> { ActiveUploadFileName },
            };
            PlayFabDataAPI.AbortFileUploads(request, (result) => { GlobalFileLock -= 1; UploadFile(ActiveUploadFileName); }, OnSharedFailure); GlobalFileLock -= 1; // Finish AbortFileUploads
            GlobalFileLock -= 1; // Failed InitiateFileUploads
        }
        else
            OnSharedFailure(error);
    }
    void OnInitFileUpload(PlayFab.DataModels.InitiateFileUploadsResponse response)
    {
        string payloadStr;
        if (!_entityFileJson.TryGetValue(ActiveUploadFileName, out payloadStr))
            payloadStr = "{}";
        var payload = Encoding.UTF8.GetBytes(payloadStr);

        GlobalFileLock += 1; // Start SimplePutCall
        PlayFabHttp.SimplePutCall(response.UploadDetails[0].UploadUrl,
            payload,
            FinalizeUpload,
            error => { Debug.Log(error); }
        );
        GlobalFileLock -= 1; // Finish InitiateFileUploads
    }
    void FinalizeUpload(byte[] body) // body is unused in this example
    {
        GlobalFileLock += 1; // Start FinalizeFileUploads
        var request = new PlayFab.DataModels.FinalizeFileUploadsRequest
        {
            Entity = new PlayFab.DataModels.EntityKey { Id = entityId, Type = entityType },
            FileNames = new List<string> { ActiveUploadFileName },
        };
        PlayFabDataAPI.FinalizeFileUploads(request, OnUploadSuccess, OnSharedFailure);
        GlobalFileLock -= 1; // Finish SimplePutCall
    }
    void OnUploadSuccess(PlayFab.DataModels.FinalizeFileUploadsResponse result)
    {
        Debug.Log("File upload success: " + ActiveUploadFileName);
        GlobalFileLock -= 1; // Finish FinalizeFileUploads
    }
}
#endif

Deconstructing this example

GlobalFileLock is a simplistic way to avoid file collisions, specifically designed for this example.
- Independent file actions won’t cause any issues.
- Each file action requires many steps and multiple API calls, so don’t try to access the same file in multiple ways at the same time.
- If you’re careful, you don’t need any locking mechanism.
- If you want to do something complicated, your locking mechanism might be much more complex.
OnGUI is an old, but very dense way, to build a Unity GUI entirely within script.
- Your GUI will be much better, and game-specific.
All PlayFab features first require a login or authentication.
LoadAllFiles() does exactly as it says. For the current signed-in entity, it loads all files saved to PlayFab.
- This function requires multiple steps:
  - Asking PlayFab where the files are located,
  - And then downloading them separately.
UploadFile(string fileName) saves the file to the service for the entity.
- For simplicity, this example saves one file at a time, but you can upload files atomically in sets as well.
- The steps for this operation are:
  - Initialize an atomic upload operation,
  - Upload all files,
  - Finalize an atomic upload operation.
- The entity doesn’t consider the file upload complete, nor reflect any changes to other callers until the atomic upload operation is finalized successfully.

Game Manager and entities

The Game Manager allows you to manipulate objects and files for players. The player overview has been updated to show both the title player and master player account information. Also, the Players tab now includes separate sections for files and objects. Entity objects and files are used across several PlayFab features, each scoped to a different entity type:

Feature	Entity types	Use case
Game Server Configuration	`game_server`	Server-side settings and server-authoritative data
Title Data	`namespace`, `title`	Global key/value configuration shared across all players
Player Data	`title_player_account`, `master_player_account`, `character`	Per-player profile, progress, and preference storage
Groups	`group`	Data shared within a player group or guild

​Deconstructing this example

​Game Manager and entities

​Related features

Deconstructing this example

Game Manager and entities

Related features