GS2-Deploy/CDK Reference of GS2-Limit

The template format used when creating stacks with GS2-Deploy, and implementation examples of template output in various languages using CDK

Entity

Resources operated in Deploy process

Namespace

A namespace is a mechanism that allows multiple uses of the same service for different purposes within a single project. Each GS2 service is managed on a per namespace basis. Even when using the same service, if the namespace differs, the data is treated as a completely independent data space.

Therefore, you must create a namespace before you can start using each service.

	Type	Required	Default	Value Limits	Description
namespaceId	string	✓		~ 1024 chars	Namespace GRN
name	string	✓		~ 128 chars	Namespace name
description	string			~ 1024 chars	Description
transactionSetting	TransactionSetting				Transaction settings
countUpScript	ScriptSetting				Script to execute when counting up
logSetting	LogSetting				Log output settings
createdAt	long	✓	Now		Datetime of creation Unix time, milliseconds Automatically configured on the server
updatedAt	long	✓	Now		Datetime of last update Unix time, milliseconds Automatically configured on the server
revision	long		0	0 ~ 9223372036854775805	Revision

GetAttr

Generation results of resources that can be obtained with the !GetAttr tag

	Type	Description
Item	Namespace	Namespace created

Implementation Example

Type: GS2::Limit::Namespace
Properties:
  Name: namespace-0001
  Description: null
  TransactionSetting: null
  CountUpScript: null
  LogSetting: 
    LoggingNamespaceId: grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001

import (
    "github.com/gs2io/gs2-golang-cdk/core"
    "github.com/gs2io/gs2-golang-cdk/limit"
    "github.com/openlyinc/pointy"
)

SampleStack := core.NewStack()
limit.NewNamespace(
    &SampleStack,
    "namespace-0001",
    limit.NamespaceOptions{
        LogSetting: &core.LogSetting{
            LoggingNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001",
        },
    },
)

println(SampleStack.Yaml())  // Generate Template

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        new \Gs2Cdk\Limit\Model\Namespace_(
            stack: $this,
            name: "namespace-0001",
            options: new \Gs2Cdk\Limit\Model\Options\NamespaceOptions(
                logSetting: new \Gs2Cdk\Core\Model\LogSetting(
                    loggingNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001"
                )
            )
        );
    }
}

print((new SampleStack())->yaml());  // Generate Template

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.limit.model.Namespace(
                this,
                "namespace-0001",
                new io.gs2.cdk.limit.model.options.NamespaceOptions()
                        .withLogSetting(new io.gs2.cdk.core.model.LogSetting(
                            "grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001"
                        ))
        );
    }
}

System.out.println(new SampleStack().yaml());  // Generate Template

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2Limit.Model.Namespace(
            stack: this,
            name: "namespace-0001",
            options: new Gs2Cdk.Gs2Limit.Model.Options.NamespaceOptions
            {
                logSetting = new Gs2Cdk.Core.Model.LogSetting(
                    loggingNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001"
                )
            }
        );
    }
}

Debug.Log(new SampleStack().Yaml());  // Generate Template

import core from "@/gs2cdk/core";
import limit from "@/gs2cdk/limit";

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new limit.model.Namespace(
            this,
            "namespace-0001",
            {
                logSetting: new core.LogSetting(
                    "grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001"
                )
            }
        );
    }
}

console.log(new SampleStack().yaml());  // Generate Template

from gs2_cdk import Stack, core, limit

class SampleStack(Stack):

    def __init__(self):
        super().__init__()
        limit.Namespace(
            stack=self,
            name='namespace-0001',
            options=limit.NamespaceOptions(
                log_setting=core.LogSetting(
                    logging_namespace_id='grn:gs2:ap-northeast-1:YourOwnerId:log:namespace-0001',
                ),
            ),
        )

print(SampleStack().yaml())  # Generate Template

TransactionSetting

Transaction settings

Transaction settings control how transactions are executed, their consistency, asynchronous processing, and conflict avoidance mechanisms. Combining features like AutoRun, AtomicCommit, Distributor, batch application of script results, and asynchronous acquisition actions via JobQueue enables robust transaction management tailored to game logic.

	Type	Condition	Required	Default	Value Limits	Description
enableAutoRun	bool		✓	false		Whether to automatically execute issued transactions on the server side
enableAtomicCommit	bool	{enableAutoRun} == true	✓*	false		Whether to commit the execution of transactions atomically * Required if enableAutoRun is true
transactionUseDistributor	bool	{enableAtomicCommit} == true	✓*	false		Whether to execute transactions asynchronously * Required if enableAtomicCommit is true
commitScriptResultInUseDistributor	bool	{transactionUseDistributor} == true	✓*	false		Whether to execute the commit processing of the script result asynchronously * Required if transactionUseDistributor is true
acquireActionUseJobQueue	bool	{enableAtomicCommit} == true	✓*	false		Whether to use GS2-JobQueue to execute the acquire action * Required if enableAtomicCommit is true
distributorNamespaceId	string		✓	“grn:gs2:{region}:{ownerId}:distributor:default”	~ 1024 chars	GS2-Distributor namespace used for transaction execution
queueNamespaceId	string		✓	“grn:gs2:{region}:{ownerId}:queue:default”	~ 1024 chars	Namespace in GS2-JobQueue used to run the transaction

ScriptSetting

Script settings

In GS2, you can associate custom scripts with microservice events and execute them. This model holds the settings for triggering script execution.

There are two main ways to execute a script: synchronous execution and asynchronous execution. Synchronous execution blocks processing until the script has finished executing. Instead, you can use the script execution result to stop the execution of the API or to tamper with the result of the API.

In contrast, asynchronous execution does not block processing until the script has finished executing. Since the script result cannot be used to stop the API execution or modify the API response, asynchronous execution does not affect the API’s response flow. For this reason, asynchronous execution is generally recommended.

There are two types of asynchronous execution methods: GS2-Script and Amazon EventBridge. By using Amazon EventBridge, you can write processing in languages other than Lua.

Type

Condition

Required

Default

Value Limits

Description

triggerScriptId

string

~ 1024 chars

Script GRN to be executed during processing

Must be specified in GRN format starting with “grn:gs2:”.

doneTriggerTargetType

String Enum
enum {
  “none”,
  “gs2_script”,
  “aws”
}

✓

“none”

Notification of Completion

Enumerator String Definition	Description
“none”	None
“gs2_script”	GS2-Script
“aws”	Amazon EventBridge

doneTriggerScriptId

string

{doneTriggerTargetType} == “gs2_script”

~ 1024 chars

Script GRN to be executed upon completion

Must be specified in GRN format starting with “grn:gs2:”.

* Enabled if doneTriggerTargetType is “gs2_script”

doneTriggerQueueNamespaceId

string

{doneTriggerTargetType} == “gs2_script”

~ 1024 chars

GS2-JobQueue namespace GRN to execute asynchronous execution scripts

Used when you want to know the completion of the done script.

* Enabled if doneTriggerTargetType is “gs2_script”

LogSetting

Log Export Settings

Manages log data export settings. This type holds the GS2-Log namespace identifier (Namespace ID) used to export log data. Specify the GS2-Log namespace where log data is collected and stored in the GRN format for the Log Namespace ID (loggingNamespaceId). Configuring this setting ensures that log data for API requests and responses occurring within the specified namespace is output to the target GS2-Log namespace. GS2-Log provides real-time logs that can be used for system monitoring, analysis, and debugging.

	Type	Condition	Required	Default	Value Limits	Description
loggingNamespaceId	string		✓		~ 1024 chars	GS2-Log namespace GRN to output logs

CurrentLimitMaster

Currently Available Master Data

GS2 uses JSON format files for managing master data. By uploading these files, the master data settings are updated on the server.

To create JSON files, GS2 provides a master data editor within the management console. Additionally, you can create tools better suited for operating your game and export JSON files in the appropriate format.

Note

Please refer to Master Data Reference of GS2-Limit for the JSON file format.

	Type	Condition	Required	Default	Value Limits	Description
namespaceId	string		✓		~ 1024 chars	Namespace GRN
settings	string		✓		~ 5242880 bytes (5MB)	Master Data

GetAttr

Generation results of resources that can be obtained with the !GetAttr tag

	Type	Description
Item	CurrentLimitMaster	Updated, currently available limit settings

Implementation Example

Type: GS2::Limit::CurrentLimitMaster
Properties:
  NamespaceName: namespace-0001
  Mode: direct
  Settings: {
    "version": "2019-04-05",
    "limitModels": [
      {
        "name": "daily",
        "resetType": "daily",
        "metadata": "DAILY",
        "resetHour": 9
      },
      {
        "name": "weekly",
        "resetType": "weekly",
        "metadata": "WEEKLY",
        "resetDayOfWeek": "sunday",
        "resetHour": 18
      }
    ]
  }
  UploadToken: null

import (
    "github.com/gs2io/gs2-golang-cdk/core"
    "github.com/gs2io/gs2-golang-cdk/limit"
    "github.com/openlyinc/pointy"
)

SampleStack := core.NewStack()
limit.NewNamespace(
    &SampleStack,
    "namespace-0001",
    limit.NamespaceOptions{},
).MasterData(
    []limit.LimitModel{
        limit.NewLimitModel(
            "daily",
            limit.LimitModelResetTypeDaily,
            limit.LimitModelOptions{
                Metadata: pointy.String("DAILY"),
                ResetHour: pointy.Int32(9),
            },
        ),
        limit.NewLimitModel(
            "weekly",
            limit.LimitModelResetTypeWeekly,
            limit.LimitModelOptions{
                Metadata: pointy.String("WEEKLY"),
                ResetDayOfWeek: limit.LimitModelResetDayOfWeekSunday.Pointer(),
                ResetHour: pointy.Int32(18),
            },
        ),
    },
)

println(SampleStack.Yaml())  // Generate Template

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        (new \Gs2Cdk\Limit\Model\Namespace_(
            stack: $this,
            name: "namespace-0001"
        ))->masterData(
            [
                new \Gs2Cdk\Limit\Model\LimitModel(
                    name:"daily",
                    resetType: \Gs2Cdk\Limit\Model\Enums\LimitModelResetType::DAILY,
                    options: new \Gs2Cdk\Limit\Model\Options\LimitModelOptions(
                        metadata:"DAILY",
                        resetHour:9
                    )
                ),
                new \Gs2Cdk\Limit\Model\LimitModel(
                    name:"weekly",
                    resetType: \Gs2Cdk\Limit\Model\Enums\LimitModelResetType::WEEKLY,
                    options: new \Gs2Cdk\Limit\Model\Options\LimitModelOptions(
                        metadata:"WEEKLY",
                        resetDayOfWeek:Gs2Cdk\Limit\Model\Enums\LimitModelResetDayOfWeek::SUNDAY,
                        resetHour:18
                    )
                )
            ]
        );
    }
}

print((new SampleStack())->yaml());  // Generate Template

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.limit.model.Namespace(
            this,
            "namespace-0001"
        ).masterData(
            Arrays.asList(
                new io.gs2.cdk.limit.model.LimitModel(
                    "daily",
                    io.gs2.cdk.limit.model.enums.LimitModelResetType.DAILY,
                    new io.gs2.cdk.limit.model.options.LimitModelOptions()
                        .withMetadata("DAILY")
                        .withResetHour(9)
                ),
                new io.gs2.cdk.limit.model.LimitModel(
                    "weekly",
                    io.gs2.cdk.limit.model.enums.LimitModelResetType.WEEKLY,
                    new io.gs2.cdk.limit.model.options.LimitModelOptions()
                        .withMetadata("WEEKLY")
                        .withResetDayOfWeek(io.gs2.cdk.limit.model.enums.LimitModelResetDayOfWeek.SUNDAY)
                        .withResetHour(18)
                )
            )
        );
    }
}

System.out.println(new SampleStack().yaml());  // Generate Template

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2Limit.Model.Namespace(
            stack: this,
            name: "namespace-0001"
        ).MasterData(
            new Gs2Cdk.Gs2Limit.Model.LimitModel[] {
                new Gs2Cdk.Gs2Limit.Model.LimitModel(
                    name: "daily",
                    resetType: Gs2Cdk.Gs2Limit.Model.Enums.LimitModelResetType.Daily,
                    options: new Gs2Cdk.Gs2Limit.Model.Options.LimitModelOptions
                    {
                        metadata = "DAILY",
                        resetHour = 9
                    }
                ),
                new Gs2Cdk.Gs2Limit.Model.LimitModel(
                    name: "weekly",
                    resetType: Gs2Cdk.Gs2Limit.Model.Enums.LimitModelResetType.Weekly,
                    options: new Gs2Cdk.Gs2Limit.Model.Options.LimitModelOptions
                    {
                        metadata = "WEEKLY",
                        resetDayOfWeek = Gs2Cdk.Gs2Limit.Model.Enums.LimitModelResetDayOfWeek.Sunday,
                        resetHour = 18
                    }
                )
            }
        );
    }
}

Debug.Log(new SampleStack().Yaml());  // Generate Template

import core from "@/gs2cdk/core";
import limit from "@/gs2cdk/limit";

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new limit.model.Namespace(
            this,
            "namespace-0001",
        ).masterData(
            [
                new limit.model.LimitModel(
                    "daily",
                    limit.model.LimitModelResetType.DAILY,
                    {
                        metadata: "DAILY",
                        resetHour: 9
                    }
                ),
                new limit.model.LimitModel(
                    "weekly",
                    limit.model.LimitModelResetType.WEEKLY,
                    {
                        metadata: "WEEKLY",
                        resetDayOfWeek: limit.model.LimitModelResetDayOfWeek.SUNDAY,
                        resetHour: 18
                    }
                )
            ]
        );
    }
}

console.log(new SampleStack().yaml());  // Generate Template

from gs2_cdk import Stack, core, limit

class SampleStack(Stack):

    def __init__(self):
        super().__init__()
        limit.Namespace(
            stack=self,
            name="namespace-0001",
        ).master_data(
            limit_models=[
                limit.LimitModel(
                    name='daily',
                    reset_type=limit.LimitModelResetType.DAILY,
                    options=limit.LimitModelOptions(
                        metadata = 'DAILY',
                        reset_hour = 9
                    ),
                ),
                limit.LimitModel(
                    name='weekly',
                    reset_type=limit.LimitModelResetType.WEEKLY,
                    options=limit.LimitModelOptions(
                        metadata = 'WEEKLY',
                        reset_day_of_week = limit.LimitModelResetDayOfWeek.SUNDAY,
                        reset_hour = 18
                    ),
                ),
            ],
        )

print(SampleStack().yaml())  # Generate Template

LimitModel

Limit Model

You can set the timing for resetting the usage count for frequency limits. The reset interval can be selected from five options: “Daily”, “Weekly”, “Monthly”, “Fixed number of days” or “Not Reset”.

Additionally, the maximum value for frequency limits is not fixed in the master data. This is to dynamically change the maximum allowed count based on the in-game context. For example, in a step-up gacha:

Items purchasable when the purchase counter is under 3
When the above items are unavailable, another item purchasable if the purchase counter is under 5

The design assumes the ability to switch the “maximum count” based on the situation.

Type

Condition

Required

Default

Value Limits

Description

limitModelId

string

✓

~ 1024 chars

Limit Model GRN

name

string

✓

~ 128 chars

Limit Model Name

metadata

string

~ 2048 chars

Metadata

resetType

String Enum
enum {
  “notReset”,
  “daily”,
  “weekly”,
  “monthly”,
  “days”
}

✓

Reset timing

Enumerator String Definition	Description
“notReset”	Not Reset
“daily”	Daily
“weekly”	Weekly
“monthly”	Monthly
“days”	Days

resetDayOfMonth

int

{resetType} == “monthly”

✓*

1 ~ 31

Date to reset (If the value exceeds the days of the month, it is treated as the last day.)

* Required if resetType is “monthly”

resetDayOfWeek

String Enum
enum {
  “sunday”,
  “monday”,
  “tuesday”,
  “wednesday”,
  “thursday”,
  “friday”,
  “saturday”
}

{resetType} == “weekly”

✓*

Day of the week to reset

* Required if resetType is “weekly”

resetHour

int

{resetType} in [“monthly”, “weekly”, “daily”]

✓*

0 ~ 23

Reset hour

anchorTimestamp

long

{resetType} == “days”

✓*

Base date and time for counting elapsed days

Unix time, milliseconds

* Required if resetType is “days”

days

int

{resetType} == “days”

✓*

1 ~ 2147483646

Number of days to reset

* Required if resetType is “days”