GS2-Inbox

GS2-SDK for Game Engine Reference

SDK for Game Engine

Models

EzMessage

Message

Message data delivered to a message box prepared for each game player.

Messages have an open status and can also have a stamp sheet attached.
Messages can have an expiration date, and messages that expire are automatically deleted.

	Type	Description
messageId	string	Message GRN
name	string	Message Name
metadata	string	Metadata corresponding to the content of the message
isRead	bool	Read
readAcquireActions	List<EzAcquireAction>	Obtain actions to be performed upon opening
receivedAt	long	Datetime of creation
readAt	long	Datetime of last update
expiresAt	long	Datetime of ttl

EzConfig

	Type	Description
key	string	Name
value	string	Value

EzAcquireAction

	Type	Description
action	enum []	Types of actions to be performed in the stamp sheet
request	string	JSON of request

Methods

delete

delete

///////////////////////////////////////////////////////////////
// New Experience (Enabled UniTask)
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;
#if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;
#endif

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
await profile.InitializeAsync();
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var result = await domain.DeleteAsync(
    );
}

///////////////////////////////////////////////////////////////
// New Experience
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
var future = profile.Initialize();
yield return future;
if (future.Error != null)
{
    onError.Invoke(future.Error, null);
    yield break;
}
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var future = domain.Delete(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
}

///////////////////////////////////////////////////////////////
// Legacy Experience
///////////////////////////////////////////////////////////////

using Gs2.Core.AsyncResult;
using Gs2.Gs2Account.Unity.Result;
using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);

{
    AsyncResult<object> asyncResult = null;
    var current = profile.Initialize(
        r => { asyncResult = r; }
    );
    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }
}
var gs2 = new Gs2.Unity.Client(profile);

// Up to this line is the initialization process.

{
    AsyncResult<EzDeleteResult> asyncResult = null;
    var current = gs2.Inbox.Delete(
        callback: r => { asyncResult = r; },
        session: session,
        namespaceName: "namespace-0001",
        messageName: "message-0001"
    );

    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }

    var result = asyncResult.Result;
    var item = result.Item;
}


const auto Profile = MakeShared<Gs2::UE5::Util::FProfile>(
    "your client id",
    "your client secret",
    Gs2::Core::Model::ERegion::ApNorthEast1,
    MakeShareable<Gs2::UE5::Util::IReOpener>(new Gs2::UE5::Util::FGs2BasicReOpener())
);

Gs2::UE5::Core::Domain::FGs2DomainPtr Gs2;
{
    const auto Future = Profile->Initialize();
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    Gs2 = Future->GetTask().Result();
    Future->EnsureCompletion();
}

// Up to this line is the initialization process.

{
    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Message(
        "message-0001" // messageName
    );
    const auto Future = Domain->Delete(
    );
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;
}

ProfilePtr = std::make_shared<gs2::ez::Profile>(
    TCHAR_TO_ANSI(*ClientId),
    TCHAR_TO_ANSI(*ClientSecret),
    gs2::ez::Gs2BasicReopener()
);

ClientPtr = std::make_shared<gs2::ez::Client>(
    *ProfilePtr
);

ProfilePtr->initialize(
    [this](gs2::ez::Profile::AsyncInitializeResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "profile.initialize failed.");
        }
        else
        {
            AccountCreate();
        }
    }
);

// Up to this line is the initialization process.

ClientPtr->inbox.deleteMessage(
    [](gs2::ez::account::AsyncEzDeleteMessageResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "inbox.deleteMessage failed.");
        }
        else
        {
            Item = r.getResult()->getItem();
        }
    },
    ProfilePtr->getGs2Session(),
    TCHAR_TO_ANSI("namespace-0001"), // namespaceName
    TCHAR_TO_ANSI("message-0001") // messageName
);

Deleting a message

If you do not have the option in your gift box settings to automatically delete messages when they are opened, you must use this API to explicitly delete messages.

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
messageName	string	✓	UUID	~ 36 chars	Message Name

Result

	Type	Description
item	EzMessage	Deleted Message

get

get

///////////////////////////////////////////////////////////////
// New Experience (Enabled UniTask)
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;
#if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;
#endif

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
await profile.InitializeAsync();
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var item = await domain.ModelAsync();
}

///////////////////////////////////////////////////////////////
// New Experience
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
var future = profile.Initialize();
yield return future;
if (future.Error != null)
{
    onError.Invoke(future.Error, null);
    yield break;
}
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;
}

///////////////////////////////////////////////////////////////
// Legacy Experience
///////////////////////////////////////////////////////////////

using Gs2.Core.AsyncResult;
using Gs2.Gs2Account.Unity.Result;
using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);

{
    AsyncResult<object> asyncResult = null;
    var current = profile.Initialize(
        r => { asyncResult = r; }
    );
    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }
}
var gs2 = new Gs2.Unity.Client(profile);

// Up to this line is the initialization process.

{
    AsyncResult<EzGetResult> asyncResult = null;
    var current = gs2.Inbox.Get(
        callback: r => { asyncResult = r; },
        session: session,
        namespaceName: "namespace-0001",
        messageName: "message-0001"
    );

    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }

    var result = asyncResult.Result;
    var item = result.Item;
}


const auto Profile = MakeShared<Gs2::UE5::Util::FProfile>(
    "your client id",
    "your client secret",
    Gs2::Core::Model::ERegion::ApNorthEast1,
    MakeShareable<Gs2::UE5::Util::IReOpener>(new Gs2::UE5::Util::FGs2BasicReOpener())
);

Gs2::UE5::Core::Domain::FGs2DomainPtr Gs2;
{
    const auto Future = Profile->Initialize();
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    Gs2 = Future->GetTask().Result();
    Future->EnsureCompletion();
}

// Up to this line is the initialization process.

{
    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Message(
        "message-0001" // messageName
    );
    const auto item = Domain.Model();
}

ProfilePtr = std::make_shared<gs2::ez::Profile>(
    TCHAR_TO_ANSI(*ClientId),
    TCHAR_TO_ANSI(*ClientSecret),
    gs2::ez::Gs2BasicReopener()
);

ClientPtr = std::make_shared<gs2::ez::Client>(
    *ProfilePtr
);

ProfilePtr->initialize(
    [this](gs2::ez::Profile::AsyncInitializeResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "profile.initialize failed.");
        }
        else
        {
            AccountCreate();
        }
    }
);

// Up to this line is the initialization process.

ClientPtr->inbox.getMessage(
    [](gs2::ez::account::AsyncEzGetMessageResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "inbox.getMessage failed.");
        }
        else
        {
            Item = r.getResult()->getItem();
        }
    },
    ProfilePtr->getGs2Session(),
    TCHAR_TO_ANSI("namespace-0001"), // namespaceName
    TCHAR_TO_ANSI("message-0001") // messageName
);

Get Message

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
messageName	string	✓	UUID	~ 36 chars	Message Name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	EzMessage	Message

list

list

///////////////////////////////////////////////////////////////
// New Experience (Enabled UniTask)
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;
#if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;
#endif

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
await profile.InitializeAsync();
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.MessagesAsync(
    ).ToListAsync();
}

///////////////////////////////////////////////////////////////
// New Experience
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
var future = profile.Initialize();
yield return future;
if (future.Error != null)
{
    onError.Invoke(future.Error, null);
    yield break;
}
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Messages(
    );
    List<EzMessage> items = new List<EzMessage>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }
}

///////////////////////////////////////////////////////////////
// Legacy Experience
///////////////////////////////////////////////////////////////

using Gs2.Core.AsyncResult;
using Gs2.Gs2Account.Unity.Result;
using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);

{
    AsyncResult<object> asyncResult = null;
    var current = profile.Initialize(
        r => { asyncResult = r; }
    );
    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }
}
var gs2 = new Gs2.Unity.Client(profile);

// Up to this line is the initialization process.

{
    AsyncResult<EzListResult> asyncResult = null;
    var current = gs2.Inbox.List(
        callback: r => { asyncResult = r; },
        session: session,
        namespaceName: "namespace-0001",
        limit: null,
        pageToken: null
    );

    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }

    var result = asyncResult.Result;
    var items = result.Items;
    var nextPageToken = result.NextPageToken;
}


const auto Profile = MakeShared<Gs2::UE5::Util::FProfile>(
    "your client id",
    "your client secret",
    Gs2::Core::Model::ERegion::ApNorthEast1,
    MakeShareable<Gs2::UE5::Util::IReOpener>(new Gs2::UE5::Util::FGs2BasicReOpener())
);

Gs2::UE5::Core::Domain::FGs2DomainPtr Gs2;
{
    const auto Future = Profile->Initialize();
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    Gs2 = Future->GetTask().Result();
    Future->EnsureCompletion();
}

// Up to this line is the initialization process.

{
    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->Messages(
    );
    for (auto Item : *It)
    {

    }
}

ProfilePtr = std::make_shared<gs2::ez::Profile>(
    TCHAR_TO_ANSI(*ClientId),
    TCHAR_TO_ANSI(*ClientSecret),
    gs2::ez::Gs2BasicReopener()
);

ClientPtr = std::make_shared<gs2::ez::Client>(
    *ProfilePtr
);

ProfilePtr->initialize(
    [this](gs2::ez::Profile::AsyncInitializeResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "profile.initialize failed.");
        }
        else
        {
            AccountCreate();
        }
    }
);

// Up to this line is the initialization process.

ClientPtr->inbox.describeMessages(
    [](gs2::ez::account::AsyncEzDescribeMessagesResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "inbox.describeMessages failed.");
        }
        else
        {
            Items = r.getResult()->getItems();
            NextPageToken = r.getResult()->getNextPageToken();
        }
    },
    ProfilePtr->getGs2Session(),
    TCHAR_TO_ANSI("namespace-0001"), // namespaceName
    null // limit,
    TCHAR_TO_ANSI(null) // pageToken
);

Get list of messages received in the gift box

Messages can be retrieved in order from the most recent message.

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
pageToken	string			~ 1024 chars	Token specifying the position from which to start acquiring data
limit	int	✓	30	1 ~ 1000	Number of data acquired

Result

	Type	Description
items	List<EzMessage>	List of Message
nextPageToken	string	Page token to retrieve the rest of the listing

read

read

///////////////////////////////////////////////////////////////
// New Experience (Enabled UniTask)
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;
#if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;
#endif

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
await profile.InitializeAsync();
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var result = await domain.ReadAsync(
    );
    // New Experience ではスタンプシートはSDKレベルで自動的に実行されます。
    // エラーが発生すると TransactionException がスローされます。
    // TransactionException::Retry() でリトライが可能です。
    // In New Experience, stamp sheets are automatically executed at the SDK level.
    // If an error occurs, a TransactionException is thrown.
    // you can retry with TransactionException::Retry().
}

///////////////////////////////////////////////////////////////
// New Experience
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
var future = profile.Initialize();
yield return future;
if (future.Error != null)
{
    onError.Invoke(future.Error, null);
    yield break;
}
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var future = domain.Read(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    // New Experience ではスタンプシートはSDKレベルで自動的に実行されます。
    // エラーが発生すると TransactionException がスローされます。
    // TransactionException::Retry() でリトライが可能です。
    // In New Experience, stamp sheets are automatically executed at the SDK level.
    // If an error occurs, a TransactionException is thrown.
    // you can retry with TransactionException::Retry().
}

///////////////////////////////////////////////////////////////
// Legacy Experience
///////////////////////////////////////////////////////////////

using Gs2.Core.AsyncResult;
using Gs2.Gs2Account.Unity.Result;
using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);

{
    AsyncResult<object> asyncResult = null;
    var current = profile.Initialize(
        r => { asyncResult = r; }
    );
    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }
}
var gs2 = new Gs2.Unity.Client(profile);

// Up to this line is the initialization process.

{
    AsyncResult<EzReadResult> asyncResult = null;
    var current = gs2.Inbox.Read(
        callback: r => { asyncResult = r; },
        session: session,
        namespaceName: "namespace-0001",
        messageName: "message-0001"
    );

    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }

    var result = asyncResult.Result;
    var item = result.Item;
    var transactionId = result.TransactionId;
    var stampSheet = result.StampSheet;
    var stampSheetEncryptionKeyId = result.StampSheetEncryptionKeyId;
    var autoRunStampSheet = result.AutoRunStampSheet;
}


const auto Profile = MakeShared<Gs2::UE5::Util::FProfile>(
    "your client id",
    "your client secret",
    Gs2::Core::Model::ERegion::ApNorthEast1,
    MakeShareable<Gs2::UE5::Util::IReOpener>(new Gs2::UE5::Util::FGs2BasicReOpener())
);

Gs2::UE5::Core::Domain::FGs2DomainPtr Gs2;
{
    const auto Future = Profile->Initialize();
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    Gs2 = Future->GetTask().Result();
    Future->EnsureCompletion();
}

// Up to this line is the initialization process.

{
    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Message(
        "message-0001" // messageName
    );
    const auto Future = Domain->Read(
    );
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;
}

ProfilePtr = std::make_shared<gs2::ez::Profile>(
    TCHAR_TO_ANSI(*ClientId),
    TCHAR_TO_ANSI(*ClientSecret),
    gs2::ez::Gs2BasicReopener()
);

ClientPtr = std::make_shared<gs2::ez::Client>(
    *ProfilePtr
);

ProfilePtr->initialize(
    [this](gs2::ez::Profile::AsyncInitializeResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "profile.initialize failed.");
        }
        else
        {
            AccountCreate();
        }
    }
);

// Up to this line is the initialization process.

ClientPtr->inbox.readMessage(
    [](gs2::ez::account::AsyncEzReadMessageResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "inbox.readMessage failed.");
        }
        else
        {
            Item = r.getResult()->getItem();
            TransactionId = r.getResult()->getTransactionId();
            StampSheet = r.getResult()->getStampSheet();
            StampSheetEncryptionKeyId = r.getResult()->getStampSheetEncryptionKeyId();
            AutoRunStampSheet = r.getResult()->getAutoRunStampSheet();
        }
    },
    ProfilePtr->getGs2Session(),
    TCHAR_TO_ANSI("namespace-0001"), // namespaceName
    TCHAR_TO_ANSI("message-0001") // messageName
);

Read the message

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
messageName	string	✓	UUID	~ 36 chars	Message Name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	EzMessage	Message
transactionId	string	Transaction ID of the stamp sheet issued
stampSheet	string	Stamp sheet
stampSheetEncryptionKeyId	string	Cryptographic key GRN used for stamp sheet signature calculations
autoRunStampSheet	bool	Is stamp sheet auto-execution enabled?

receiveGlobalMessage

receiveGlobalMessage

///////////////////////////////////////////////////////////////
// New Experience (Enabled UniTask)
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;
#if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
using Cysharp.Threading.Tasks.Linq;
#endif

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
await profile.InitializeAsync();
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var result = await domain.ReceiveGlobalMessageAsync(
    );
    var item = await result.ModelAsync();
}

///////////////////////////////////////////////////////////////
// New Experience
///////////////////////////////////////////////////////////////

using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);
var future = profile.Initialize();
yield return future;
if (future.Error != null)
{
    onError.Invoke(future.Error, null);
    yield break;
}
var gs2 = new Gs2.Unity.Core.Gs2Domain(profile);

// Up to this line is the initialization process.

{
    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var future = domain.ReceiveGlobalMessage(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;
}

///////////////////////////////////////////////////////////////
// Legacy Experience
///////////////////////////////////////////////////////////////

using Gs2.Core.AsyncResult;
using Gs2.Gs2Account.Unity.Result;
using Gs2.Unity.Util;

var profile = new Profile(
    clientId: "your client id",
    clientSecret: "your client secret",
    reopener: new Gs2BasicReopener()
);

{
    AsyncResult<object> asyncResult = null;
    var current = profile.Initialize(
        r => { asyncResult = r; }
    );
    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }
}
var gs2 = new Gs2.Unity.Client(profile);

// Up to this line is the initialization process.

{
    AsyncResult<EzReceiveGlobalMessageResult> asyncResult = null;
    var current = gs2.Inbox.ReceiveGlobalMessage(
        callback: r => { asyncResult = r; },
        session: session,
        namespaceName: "namespace-0001"
    );

    yield return current;
    if (asyncResult.Error != null)
    {
        OnError(asyncResult.Error);
        yield break;
    }

    var result = asyncResult.Result;
    var item = result.Item;
}


const auto Profile = MakeShared<Gs2::UE5::Util::FProfile>(
    "your client id",
    "your client secret",
    Gs2::Core::Model::ERegion::ApNorthEast1,
    MakeShareable<Gs2::UE5::Util::IReOpener>(new Gs2::UE5::Util::FGs2BasicReOpener())
);

Gs2::UE5::Core::Domain::FGs2DomainPtr Gs2;
{
    const auto Future = Profile->Initialize();
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    Gs2 = Future->GetTask().Result();
    Future->EnsureCompletion();
}

// Up to this line is the initialization process.

{
    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto Future = Domain->ReceiveGlobalMessage(
    );
    Future->StartSynchronousTask();
    if (!TestFalse(WHAT, Future->GetTask().IsError())) return false;

    // obtain changed values / result values
    const auto Future2 = Future->GetTask().Result()->Model();
    Future2->StartSynchronousTask();
    if (!TestFalse(WHAT, Future2->GetTask().IsError())) return false;
    const auto Result = Future2->GetTask().Result();
}

ProfilePtr = std::make_shared<gs2::ez::Profile>(
    TCHAR_TO_ANSI(*ClientId),
    TCHAR_TO_ANSI(*ClientSecret),
    gs2::ez::Gs2BasicReopener()
);

ClientPtr = std::make_shared<gs2::ez::Client>(
    *ProfilePtr
);

ProfilePtr->initialize(
    [this](gs2::ez::Profile::AsyncInitializeResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "profile.initialize failed.");
        }
        else
        {
            AccountCreate();
        }
    }
);

// Up to this line is the initialization process.

ClientPtr->inbox.receiveGlobalMessage(
    [](gs2::ez::account::AsyncEzReceiveGlobalMessageResult r)
    {
        if (r.getError())
        {
            GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, "inbox.receiveGlobalMessage failed.");
        }
        else
        {
            Item = r.getResult()->getItem();
        }
    },
    ProfilePtr->getGs2Session(),
    TCHAR_TO_ANSI("namespace-0001") // namespaceName
);

Receive global messages

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	List<EzMessage>	List of received messages