API Reference of GS2-Inbox SDK for Game Engine

Model

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	Require	Default	Limitation	Description
messageId	string	✓		~ 1024 chars	Message GRN
name	string	✓	UUID	~ 36 chars	Message Name
metadata	string	✓		~ 4096 chars	Metadata corresponding to the content of the message
isRead	bool	✓	false		Read
readAcquireActions	List<EzAcquireAction>		[]	~ 100 items	Obtain actions to be performed upon opening
receivedAt	long	✓			Datetime of creation
readAt	long	✓	0		Read date and time
expiresAt	long				Datetime of ttl

EzConfig

	Type	Require	Default	Limitation	Description
key	string	✓		~ 64 chars	Name
value	string			~ 51200 chars	Value

EzAcquireAction

	Type	Require	Default	Limitation	Description
action	enum []	✓		~ 128 chars	Types of actions to be performed in the stamp sheet
request	string	✓		~ 1048576 chars	JSON of request

Methods

delete

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

Implementation Example

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

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

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

get

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

Implementation Example

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

    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;

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

Value change event handling

    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    domain.Unsubscribe(callbackId);

    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;

    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Message(
        "message-0001" // messageName
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Inbox::Model::FMessage> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

The local cache will only be changed by executing the SDK’s API, or by executing a stamp sheet via GS2-Distributor with GS2-Gateway notification enabled, or by executing a GS2-JobQueue with GS2-Gateway notification enabled. GS2-Gateway notification enabled.

Therefore, callbacks will not be invoked if the value is changed in any other way.

list

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
isRead	bool				Read
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

Implementation Example

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

    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;
        }
    }

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

    }

Value change event handling

    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    
    // Start event handling
    var callbackId = domain.SubscribeMessages(
        () => {
            // Called when an element of the list changes.
        }
    );

    // Stop event handling
    domain.UnsubscribeMessages(callbackId);

    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;
        }
    }

    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    
    // Start event handling
    const auto CallbackId = Domain->SubscribeMessages(
        []() {
            // Called when an element of the list changes.
        }
    );

    // Stop event handling
    Domain->UnsubscribeMessages(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

Therefore, callbacks will not be invoked if the value is changed in any other way.

read

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?

Implementation Example

    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().

    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Message(
        messageName: "message-0001"
    );
    var future = domain.ReadFuture(
    );
    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().

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

receiveGlobalMessage

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

Implementation Example

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

    var domain = gs2.Inbox.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var future = domain.ReceiveGlobalMessageFuture(
    );
    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;

    const auto Domain = Gs2->Inbox->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto Future = Domain->ReceiveGlobalMessage(
    );
    Future->StartSynchronousTask();
    if (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();

Event Handler

OnReceiveNotification

Notification used when a message is received

Name	Type	Description
namespaceName	string	Namespace name
userId	string	User Id
messageName	string	Message Name

Implementation Example

    gs2.Inbox.OnReceiveNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var userId = notification.UserId;
        var messageName = notification.MessageName;
    };

    gs2.Inbox.OnReceiveNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var userId = notification.UserId;
        var messageName = notification.MessageName;
    };

    Gs2->Inbox->OnReceiveNotification().AddLambda([](const auto Notification)
    {
        const auto NamespaceName = Notification->NamespaceNameValue;
        const auto UserId = Notification->UserIdValue;
        const auto MessageName = Notification->MessageNameValue;
    });