API Reference of GS2-Grade SDK for Game Engine

Specifications of models and API references for GS2-SDK for Game Engine

Model

EzGradeModel

Grade Model

An grade model is an entity that sets the threshold of grade required for rank advancement and for each default and maximum rank cap.

	Type	Require	Limitation	Description
name	string	✓	~ 128 chars	Grade Model Name
metadata	string		~ 2048 chars	metadata
experienceModelId	string	✓	~ 1024 chars	Experience model GRN to link grade and rank cap
gradeEntries	List<EzGradeEntryModel>	✓	1 ~ 100 items	List of Grade entry
acquireActionRates	List<EzAcquireActionRate>		~ 100 items	List of Remuneration addition table

getGradeModel listGradeModels

EzStatus

Status

A status is an entity that exists for each property ID and holds the value of the current grade.

The property ID is a status-specific ID and can be set to any value by the developer. It is strongly recommended that the value be the same as the property ID of the GS2-Experience.

	Type	Require	Default	Limitation	Description
gradeName	string	✓		~ 128 chars	Grade Model Name
propertyId	string	✓		~ 1024 chars	Property ID
gradeValue	long	✓	1	1 ~ 9223372036854775805	Current Grade

applyRankCap getStatus listStatuses

EzGradeEntryModel

Grade Entry

	Type	Condition	Require	Default	Limitation	Description
metadata	string				~ 2048 chars	metadata
rankCapValue	long		✓		~ 9223372036854775805	Rank cap value to be set in GS2-Experience

ezGradeModel

EzAcquireAction

Acquire Action

	Type	Condition	Require	Default	Limitation	Description
action	String Enum enum { "Gs2AdReward:AcquirePointByUserId", "Gs2Dictionary:AddEntriesByUserId", "Gs2Enchant:ReDrawBalanceParameterStatusByUserId", "Gs2Enchant:SetBalanceParameterStatusByUserId", "Gs2Enchant:ReDrawRarityParameterStatusByUserId", "Gs2Enchant:AddRarityParameterStatusByUserId", "Gs2Enchant:SetRarityParameterStatusByUserId", "Gs2Enhance:DirectEnhanceByUserId", "Gs2Enhance:UnleashByUserId", "Gs2Enhance:CreateProgressByUserId", "Gs2Exchange:ExchangeByUserId", "Gs2Exchange:IncrementalExchangeByUserId", "Gs2Exchange:CreateAwaitByUserId", "Gs2Exchange:AcquireForceByUserId", "Gs2Exchange:SkipByUserId", "Gs2Experience:AddExperienceByUserId", "Gs2Experience:SetExperienceByUserId", "Gs2Experience:AddRankCapByUserId", "Gs2Experience:SetRankCapByUserId", "Gs2Experience:MultiplyAcquireActionsByUserId", "Gs2Formation:AddMoldCapacityByUserId", "Gs2Formation:SetMoldCapacityByUserId", "Gs2Formation:AcquireActionsToFormProperties", "Gs2Formation:SetFormByUserId", "Gs2Formation:AcquireActionsToPropertyFormProperties", "Gs2Friend:UpdateProfileByUserId", "Gs2Grade:AddGradeByUserId", "Gs2Grade:ApplyRankCapByUserId", "Gs2Grade:MultiplyAcquireActionsByUserId", "Gs2Guild:IncreaseMaximumCurrentMaximumMemberCountByGuildName", "Gs2Guild:SetMaximumCurrentMaximumMemberCountByGuildName", "Gs2Idle:IncreaseMaximumIdleMinutesByUserId", "Gs2Idle:SetMaximumIdleMinutesByUserId", "Gs2Idle:ReceiveByUserId", "Gs2Inbox:SendMessageByUserId", "Gs2Inventory:AddCapacityByUserId", "Gs2Inventory:SetCapacityByUserId", "Gs2Inventory:AcquireItemSetByUserId", "Gs2Inventory:AcquireItemSetWithGradeByUserId", "Gs2Inventory:AddReferenceOfByUserId", "Gs2Inventory:DeleteReferenceOfByUserId", "Gs2Inventory:AcquireSimpleItemsByUserId", "Gs2Inventory:SetSimpleItemsByUserId", "Gs2Inventory:AcquireBigItemByUserId", "Gs2Inventory:SetBigItemByUserId", "Gs2JobQueue:PushByUserId", "Gs2Limit:CountDownByUserId", "Gs2Limit:DeleteCounterByUserId", "Gs2LoginReward:DeleteReceiveStatusByUserId", "Gs2LoginReward:UnmarkReceivedByUserId", "Gs2Lottery:DrawByUserId", "Gs2Lottery:ResetBoxByUserId", "Gs2Mission:RevertReceiveByUserId", "Gs2Mission:IncreaseCounterByUserId", "Gs2Mission:SetCounterByUserId", "Gs2Money:DepositByUserId", "Gs2Money:RevertRecordReceipt", "Gs2Money2:DepositByUserId", "Gs2Quest:CreateProgressByUserId", "Gs2Schedule:TriggerByUserId", "Gs2Schedule:ExtendTriggerByUserId", "Gs2Script:InvokeScript", "Gs2SerialKey:RevertUseByUserId", "Gs2SerialKey:IssueOnce", "Gs2Showcase:DecrementPurchaseCountByUserId", "Gs2Showcase:ForceReDrawByUserId", "Gs2SkillTree:MarkReleaseByUserId", "Gs2Stamina:RecoverStaminaByUserId", "Gs2Stamina:RaiseMaxValueByUserId", "Gs2Stamina:SetMaxValueByUserId", "Gs2Stamina:SetRecoverIntervalByUserId", "Gs2Stamina:SetRecoverValueByUserId", "Gs2StateMachine:StartStateMachineByUserId", }		✓		~ 128 chars	Types of actions to be performed in the acquire action
request	string		✓		~ 524288 chars	JSON of request

EzAcquireActionRate

Remuneration addition table master

You can adjust the amount of rewards according to the rank.

Type

Condition

Require

Default

Limitation

Description

name

string

✓

~ 128 chars

Remuneration addition table name

mode

String Enum
enum {
“double”,
“big”
}

✓

“double”

~ 128 chars

Remuneration addition table type

Enumerator String Definition	Description
“double”	Floating point number less than 2^48
“big”	Floating point number less than 1024 digits

rates

List<double>

{mode} == “double”

✓

1 ~ 1000 items

Amount added per grade (multiplier)
If mode is “double”, then required

bigRates

List<string>

{mode} == “big”

✓

1 ~ 1000 items

Amount added per grade (multiplier)
If mode is “big”, then required

ezGradeModel

EzVerifyActionResult

Verify action execution result

	Type	Require	Limitation	Description
action	String Enum enum { "Gs2Dictionary:VerifyEntryByUserId", "Gs2Distributor:IfExpressionByUserId", "Gs2Distributor:AndExpressionByUserId", "Gs2Distributor:OrExpressionByUserId", "Gs2Enchant:VerifyRarityParameterStatusByUserId", "Gs2Experience:VerifyRankByUserId", "Gs2Experience:VerifyRankCapByUserId", "Gs2Grade:VerifyGradeByUserId", "Gs2Grade:VerifyGradeUpMaterialByUserId", "Gs2Guild:VerifyCurrentMaximumMemberCountByGuildName", "Gs2Guild:VerifyIncludeMemberByUserId", "Gs2Inventory:VerifyInventoryCurrentMaxCapacityByUserId", "Gs2Inventory:VerifyItemSetByUserId", "Gs2Inventory:VerifyReferenceOfByUserId", "Gs2Inventory:VerifySimpleItemByUserId", "Gs2Inventory:VerifyBigItemByUserId", "Gs2Limit:VerifyCounterByUserId", "Gs2Matchmaking:VerifyIncludeParticipantByUserId", "Gs2Mission:VerifyCompleteByUserId", "Gs2Mission:VerifyCounterValueByUserId", "Gs2Ranking2:VerifyGlobalRankingScoreByUserId", "Gs2Ranking2:VerifyClusterRankingScoreByUserId", "Gs2Ranking2:VerifySubscribeRankingScoreByUserId", "Gs2Schedule:VerifyTriggerByUserId", "Gs2Schedule:VerifyEventByUserId", "Gs2SerialKey:VerifyCodeByUserId", "Gs2Stamina:VerifyStaminaValueByUserId", "Gs2Stamina:VerifyStaminaMaxValueByUserId", "Gs2Stamina:VerifyStaminaRecoverIntervalMinutesByUserId", "Gs2Stamina:VerifyStaminaRecoverValueByUserId", "Gs2Stamina:VerifyStaminaOverflowValueByUserId", }	✓	~ 128 chars	Types of actions to be performed in the verify task
verifyRequest	string	✓	~ 524288 chars	JSON of request
statusCode	int		~ 999	Status code
verifyResult	string		~ 1048576 chars	Result payload

ezTransactionResult

EzConsumeActionResult

Consume action execution result

	Type	Require	Limitation	Description
action	String Enum enum { "Gs2AdReward:ConsumePointByUserId", "Gs2Dictionary:DeleteEntriesByUserId", "Gs2Enhance:DeleteProgressByUserId", "Gs2Exchange:DeleteAwaitByUserId", "Gs2Experience:SubExperienceByUserId", "Gs2Experience:SubRankCapByUserId", "Gs2Formation:SubMoldCapacityByUserId", "Gs2Grade:SubGradeByUserId", "Gs2Guild:DecreaseMaximumCurrentMaximumMemberCountByGuildName", "Gs2Idle:DecreaseMaximumIdleMinutesByUserId", "Gs2Inbox:OpenMessageByUserId", "Gs2Inbox:DeleteMessageByUserId", "Gs2Inventory:ConsumeItemSetByUserId", "Gs2Inventory:ConsumeSimpleItemsByUserId", "Gs2Inventory:ConsumeBigItemByUserId", "Gs2JobQueue:DeleteJobByUserId", "Gs2Limit:CountUpByUserId", "Gs2LoginReward:MarkReceivedByUserId", "Gs2Mission:ReceiveByUserId", "Gs2Mission:BatchReceiveByUserId", "Gs2Mission:DecreaseCounterByUserId", "Gs2Mission:ResetCounterByUserId", "Gs2Money:WithdrawByUserId", "Gs2Money:RecordReceipt", "Gs2Money2:WithdrawByUserId", "Gs2Money2:VerifyReceiptByUserId", "Gs2Quest:DeleteProgressByUserId", "Gs2Ranking2:CreateGlobalRankingReceivedRewardByUserId", "Gs2Ranking2:CreateClusterRankingReceivedRewardByUserId", "Gs2Schedule:DeleteTriggerByUserId", "Gs2SerialKey:UseByUserId", "Gs2Showcase:IncrementPurchaseCountByUserId", "Gs2SkillTree:MarkRestrainByUserId", "Gs2Stamina:DecreaseMaxValueByUserId", "Gs2Stamina:ConsumeStaminaByUserId", }	✓	~ 128 chars	Types of actions to be performed in the consume action
consumeRequest	string	✓	~ 524288 chars	JSON of request
statusCode	int		~ 999	Status code
consumeResult	string		~ 1048576 chars	Result payload

ezTransactionResult

EzAcquireActionResult

Acquire action execution result

	Type	Require	Limitation	Description
action	String Enum enum { "Gs2AdReward:AcquirePointByUserId", "Gs2Dictionary:AddEntriesByUserId", "Gs2Enchant:ReDrawBalanceParameterStatusByUserId", "Gs2Enchant:SetBalanceParameterStatusByUserId", "Gs2Enchant:ReDrawRarityParameterStatusByUserId", "Gs2Enchant:AddRarityParameterStatusByUserId", "Gs2Enchant:SetRarityParameterStatusByUserId", "Gs2Enhance:DirectEnhanceByUserId", "Gs2Enhance:UnleashByUserId", "Gs2Enhance:CreateProgressByUserId", "Gs2Exchange:ExchangeByUserId", "Gs2Exchange:IncrementalExchangeByUserId", "Gs2Exchange:CreateAwaitByUserId", "Gs2Exchange:AcquireForceByUserId", "Gs2Exchange:SkipByUserId", "Gs2Experience:AddExperienceByUserId", "Gs2Experience:SetExperienceByUserId", "Gs2Experience:AddRankCapByUserId", "Gs2Experience:SetRankCapByUserId", "Gs2Experience:MultiplyAcquireActionsByUserId", "Gs2Formation:AddMoldCapacityByUserId", "Gs2Formation:SetMoldCapacityByUserId", "Gs2Formation:AcquireActionsToFormProperties", "Gs2Formation:SetFormByUserId", "Gs2Formation:AcquireActionsToPropertyFormProperties", "Gs2Friend:UpdateProfileByUserId", "Gs2Grade:AddGradeByUserId", "Gs2Grade:ApplyRankCapByUserId", "Gs2Grade:MultiplyAcquireActionsByUserId", "Gs2Guild:IncreaseMaximumCurrentMaximumMemberCountByGuildName", "Gs2Guild:SetMaximumCurrentMaximumMemberCountByGuildName", "Gs2Idle:IncreaseMaximumIdleMinutesByUserId", "Gs2Idle:SetMaximumIdleMinutesByUserId", "Gs2Idle:ReceiveByUserId", "Gs2Inbox:SendMessageByUserId", "Gs2Inventory:AddCapacityByUserId", "Gs2Inventory:SetCapacityByUserId", "Gs2Inventory:AcquireItemSetByUserId", "Gs2Inventory:AcquireItemSetWithGradeByUserId", "Gs2Inventory:AddReferenceOfByUserId", "Gs2Inventory:DeleteReferenceOfByUserId", "Gs2Inventory:AcquireSimpleItemsByUserId", "Gs2Inventory:SetSimpleItemsByUserId", "Gs2Inventory:AcquireBigItemByUserId", "Gs2Inventory:SetBigItemByUserId", "Gs2JobQueue:PushByUserId", "Gs2Limit:CountDownByUserId", "Gs2Limit:DeleteCounterByUserId", "Gs2LoginReward:DeleteReceiveStatusByUserId", "Gs2LoginReward:UnmarkReceivedByUserId", "Gs2Lottery:DrawByUserId", "Gs2Lottery:ResetBoxByUserId", "Gs2Mission:RevertReceiveByUserId", "Gs2Mission:IncreaseCounterByUserId", "Gs2Mission:SetCounterByUserId", "Gs2Money:DepositByUserId", "Gs2Money:RevertRecordReceipt", "Gs2Money2:DepositByUserId", "Gs2Quest:CreateProgressByUserId", "Gs2Schedule:TriggerByUserId", "Gs2Schedule:ExtendTriggerByUserId", "Gs2Script:InvokeScript", "Gs2SerialKey:RevertUseByUserId", "Gs2SerialKey:IssueOnce", "Gs2Showcase:DecrementPurchaseCountByUserId", "Gs2Showcase:ForceReDrawByUserId", "Gs2SkillTree:MarkReleaseByUserId", "Gs2Stamina:RecoverStaminaByUserId", "Gs2Stamina:RaiseMaxValueByUserId", "Gs2Stamina:SetMaxValueByUserId", "Gs2Stamina:SetRecoverIntervalByUserId", "Gs2Stamina:SetRecoverValueByUserId", "Gs2StateMachine:StartStateMachineByUserId", }	✓	~ 128 chars	Types of actions to be performed in the acquire action
acquireRequest	string	✓	~ 524288 chars	JSON of request
statusCode	int		~ 999	Status code
acquireResult	string		~ 1048576 chars	Result payload

ezTransactionResult

EzTransactionResult

Transaction execution results

Transaction execution results executed using server-side transaction auto-execution functionality

	Type	Require	Default	Limitation	Description
transactionId	string	✓		36 ~ 36 chars	Transaction ID
verifyResults	List<EzVerifyActionResult>			~ 10 items	List of verify action execution results
consumeResults	List<EzConsumeActionResult>		[]	~ 10 items	List of consume action execution results
acquireResults	List<EzAcquireActionResult>		[]	~ 100 items	List of acquire action execution results

Methods

getGradeModel

Obtain grade and rank-up threshold model information

Get rank cap information and rank-up threshold information by specifying grade type name.

Request

	Type	Condition	Require	Default	Limitation	Description
namespaceName	string		✓		~ 128 chars	Namespace name
gradeName	string		✓		~ 128 chars	Grade Model Name

Result

	Type	Description
item	EzGradeModel	Grade Model

Implementation Example

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).GradeModel(
        gradeName: "grade-0001"
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).GradeModel(
        gradeName: "grade-0001"
    );
    var future = domain.ModelFuture();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->GradeModel(
        "grade-0001" // gradeName
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).GradeModel(
        gradeName: "grade-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.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).GradeModel(
        gradeName: "grade-0001"
    );
    var future = domain.ModelFuture();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->GradeModel(
        "grade-0001" // gradeName
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Grade::Model::FGradeModel> 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.

listGradeModels

Get list of grade and rank-up threshold model information

Obtain information on rank caps and rank advancement thresholds. Use this model data if you want to display in-game information such as the amount of grade required to gain before the next rank-up.

Request

	Type	Condition	Require	Default	Limitation	Description
namespaceName	string		✓		~ 128 chars	Namespace name

Result

	Type	Description
items	List<EzGradeModel>	List of Grade Model

Implementation Example

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    );
    var items = await domain.GradeModelsAsync(
    ).ToListAsync();

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    );
    var it = domain.GradeModels(
    );
    List<EzGradeModel> items = new List<EzGradeModel>();
    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->Grade->Namespace(
        "namespace-0001" // namespaceName
    );
    const auto It = Domain->GradeModels(
    );
    TArray<Gs2::UE5::Grade::Model::FEzGradeModelPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

Value change event handling

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

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

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    );
    var it = domain.GradeModels(
    );
    List<EzGradeModel> items = new List<EzGradeModel>();
    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->Grade->Namespace(
        "namespace-0001" // namespaceName
    );
    
    // Start event handling
    const auto CallbackId = Domain->SubscribeGradeModels(
        []() {
            // Called when an element of the list changes.
        }
    );

    // Stop event handling
    Domain->UnsubscribeGradeModels(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.

applyRankCap

Apply rank cap to GS2-Experience

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 128 chars	Namespace name
gradeName	string	✓	~ 128 chars	Grade Model Name
accessToken	string	✓	~ 128 chars	Access token
propertyId	string	✓	~ 1024 chars	Property ID

Result

	Type	Description
item	EzStatus	Status
experienceNamespaceName	string	GS2-Experience Namespace Name
experienceStatus	EzStatus	GS2-Experience Status after addition

Implementation Example

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-0001"
    );
    var result = await domain.ApplyRankCapAsync(
    );
    var item = await result.ModelAsync();
    var experienceNamespaceName = result.ExperienceNamespaceName;

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-0001"
    );
    var future = domain.ApplyRankCapFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.ModelFuture();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;
    var experienceNamespaceName = future.Result.ExperienceNamespaceName;

    const auto Domain = Gs2->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        GameSession
    )->Status(
        "grade-0001", // gradeName
        "property-0001" // propertyId
    );
    const auto Future = Domain->ApplyRankCap(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

    // obtain changed values / result values
    const auto Future2 = Future->GetTask().Result()->Model();
    Future2->StartSynchronousTask();
    if (Future2->GetTask().IsError())
    {
        return Future2->GetTask().Error();
    }
    const auto Result = Future2->GetTask().Result();
    const auto ExperienceNamespaceName = Result->ExperienceNamespaceName;

getStatus

Get status information by grade type and property ID

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 128 chars	Namespace name
gradeName	string	✓	~ 128 chars	Grade Model Name
accessToken	string	✓	~ 128 chars	Access token
propertyId	string	✓	~ 1024 chars	Property ID

Result

	Type	Description
item	EzStatus	Status

Implementation Example

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-0001"
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-0001"
    );
    var future = domain.ModelFuture();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        GameSession
    )->Status(
        "grade-0001", // gradeName
        "property-0001" // propertyId
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-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.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Status(
        gradeName: "grade-0001",
        propertyId: "property-0001"
    );
    var future = domain.ModelFuture();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        GameSession
    )->Status(
        "grade-0001", // gradeName
        "property-0001" // propertyId
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Grade::Model::FStatus> 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.

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

listStatuses

Get list of status information

The grade type name is optional; if not specified, all status information belonging to the game player is retrieved.

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 128 chars	Namespace name
gradeName	string			~ 128 chars	Grade Model Name
accessToken	string	✓		~ 128 chars	Access token
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<EzStatus>	List of Status
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.StatusesAsync(
        gradeName: "grade-0001"
    ).ToListAsync();

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Statuses(
        gradeName: "grade-0001"
    );
    List<EzStatus> items = new List<EzStatus>();
    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->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        GameSession
    );
    const auto It = Domain->Statuses(
        "grade-0001" // gradeName
    );
    TArray<Gs2::UE5::Grade::Model::FEzStatusPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

Value change event handling

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

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

    var domain = gs2.Grade.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Statuses(
        gradeName: "grade-0001"
    );
    List<EzStatus> items = new List<EzStatus>();
    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->Grade->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        GameSession
    );
    
    // Start event handling
    const auto CallbackId = Domain->SubscribeStatuses(
        []() {
            // Called when an element of the list changes.
        }
    );

    // Stop event handling
    Domain->UnsubscribeStatuses(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.

API Reference of GS2-Grade SDK for Game Engine

Model

EzGradeModel

Related methods

EzStatus

Related methods

EzGradeEntryModel

Related models

EzAcquireAction

EzAcquireActionRate

Related models

EzVerifyActionResult

Related models

EzConsumeActionResult

Related models

EzAcquireActionResult

Related models

EzTransactionResult

Methods

getGradeModel

Request

Result

Implementation Example

Value change event handling

Warning

listGradeModels

Request

Result

Implementation Example

Value change event handling

Warning

applyRankCap

Request

Result

Implementation Example

getStatus

Request

Result

Implementation Example

Value change event handling

Warning

listStatuses

Request

Result

Implementation Example

Value change event handling

Warning