GS2-Enhance Deploy/CDK Reference

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

Entities

Resources targeted by the Deploy operation

Namespace

A Namespace allows multiple independent instances of the same service within a single project by separating data spaces and usage contexts. 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.

Request

Resource creation and update requests

	Type	Required	Value Limits	Description
name	string	✓	~ 128 chars	Namespace name Namespace-specific name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).
description	string		~ 1024 chars	Description
transactionSetting	TransactionSetting	✓		Transaction Setting Configuration for controlling how distributed transactions are executed when processing enhancement operations. Supports auto-run, atomic commit, and async processing options.
enhanceScript	ScriptSetting			Script setting to be executed at the time of enhancement Script Trigger Reference - `enhance`
logSetting	LogSetting			Log Output Setting Configuration for outputting log data of enhancement operations to GS2-Log. By specifying a GS2-Log namespace, API request and response logs for enhancement and limit break operations can be collected.

GetAttr

Resource creation results that can be retrieved using the !GetAttr tag

	Type	Description
Item	Namespace	Namespace created

Implementation Example

Type: GS2::Enhance::Namespace
Properties:
  Name: namespace-0001
  Description: null
  TransactionSetting: 
    EnableAutoRun: true
    QueueNamespaceId: grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-0001
  EnhanceScript: 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/enhance"
    "github.com/openlyinc/pointy"
)


SampleStack := core.NewStack()
enhance.NewNamespace(
    &SampleStack,
    "namespace-0001",
    enhance.NamespaceOptions{
        TransactionSetting: core.NewTransactionSetting(
            core.TransactionSettingOptions{
                QueueNamespaceId: pointy.String("grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-0001"),
            },
        ),
        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\Enhance\Model\Namespace_(
            stack: $this,
            name: "namespace-0001",
            options: new \Gs2Cdk\Enhance\Model\Options\NamespaceOptions(
                transactionSetting: new \Gs2Cdk\Core\Model\TransactionSetting(
                    new \Gs2Cdk\Core\Model\TransactionSettingOptions(
                        queueNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-0001"
                    )
                ),
                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.enhance.model.Namespace(
                this,
                "namespace-0001",
                new io.gs2.cdk.enhance.model.options.NamespaceOptions()
                        .withTransactionSetting(new io.gs2.cdk.core.model.TransactionSetting(
                            new io.gs2.cdk.core.model.options.TransactionSettingOptions()
                                .withQueueNamespaceId("grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-0001")
                        ))
                        .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.Gs2Enhance.Model.Namespace(
            stack: this,
            name: "namespace-0001",
            options: new Gs2Cdk.Gs2Enhance.Model.Options.NamespaceOptions
            {
                transactionSetting = new Gs2Cdk.Core.Model.TransactionSetting(
                    options: new Gs2Cdk.Core.Model.TransactionSettingOptions
                    {
                        queueNamespaceId = "grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-0001"
                    }
                ),
                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 enhance from "@/gs2cdk/enhance";

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new enhance.model.Namespace(
            this,
            "namespace-0001",
            {
                transactionSetting: new core.TransactionSetting(
                    {
                        queueNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:queue:queue-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, enhance

class SampleStack(Stack):

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

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

TransactionSetting

Transaction Setting

Transaction Setting controls how transactions are executed, including their consistency, asynchronous processing, and conflict avoidance mechanisms. Combining features like AutoRun, AtomicCommit, asynchronous execution using GS2-Distributor, batch application of script results, and asynchronous Acquire Actions via GS2-JobQueue enables robust transaction management tailored to game logic.

	Type	Condition	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 * Applicable only if enableAutoRun is true
transactionUseDistributor	bool	{enableAtomicCommit} == true	false		Whether to execute transactions asynchronously * Applicable only if enableAtomicCommit is true
commitScriptResultInUseDistributor	bool	{transactionUseDistributor} == true	false		Whether to execute the commit processing of the script result asynchronously * Applicable only if transactionUseDistributor is true
acquireActionUseJobQueue	bool	{enableAtomicCommit} == true	false		Whether to use GS2-JobQueue to execute the acquire action * Applicable only if enableAtomicCommit is true
distributorNamespaceId	string		“grn:gs2:{region}:{ownerId}:distributor:default”	~ 1024 chars	GS2-Distributor Namespace GRN used to execute transactions
queueNamespaceId	string		“grn:gs2:{region}:{ownerId}:queue:default”	~ 1024 chars	GS2-JobQueue Namespace GRN used to execute transactions

ScriptSetting

Script Setting

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’s execution results to halt API execution or control the API’s response content.

In contrast, asynchronous execution does not block processing until the script has finished executing. However, because the script result cannot be used to stop the API execution or modify the API response, asynchronous execution does not affect the API response flow and 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

GS2-Script script GRN executed synchronously when the API is executed

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

doneTriggerTargetType

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

“none”

How to execute asynchronous scripts

Specifies the type of script to use for asynchronous execution.
You can choose from “Do not use asynchronous execution (none)”, “Use GS2-Script (gs2_script)”, and “Use Amazon EventBridge (aws)”.

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

doneTriggerScriptId

string

{doneTriggerTargetType} == “gs2_script”

~ 1024 chars

GS2-Script script GRN for asynchronous execution

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

* Applicable only if doneTriggerTargetType is “gs2_script”

doneTriggerQueueNamespaceId

string

{doneTriggerTargetType} == “gs2_script”

~ 1024 chars

GS2-JobQueue namespace GRN to execute asynchronous execution scripts

If you want to execute asynchronous execution scripts via GS2-JobQueue instead of executing them directly, specify the GS2-JobQueue namespace GRN.
There are not many cases where GS2-JobQueue is required, so you generally do not need to specify it unless you have a specific reason.

* Applicable only if doneTriggerTargetType is “gs2_script”

LogSetting

Log Output Setting

Log Output Setting defines how log data is exported. 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, debugging, and other operational purposes.

	Type	Condition	Required	Default	Value Limits	Description
loggingNamespaceId	string		✓		~ 1024 chars	GS2-Log namespace GRN to output logs Must be specified in GRN format starting with “grn:gs2:”.

CurrentRateMaster

Currently active Rate Model master data

This master data describes the definitions of Rate Models currently active within the namespace. GS2 uses JSON format files for master data management. By uploading the file, the settings can actually be reflected on the server.

To create JSON files, we provide a master data editor within the management console. Additionally, you can utilize the service by creating tools more suited to game operations and exporting JSON files in the appropriate format.

Note

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

Request

Resource creation and update requests

Type

Condition

Required

Default

Value Limits

Description

namespaceName

string

✓

~ 128 chars

Namespace name

Namespace-specific name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).

mode

String Enum
enum {
“direct”,
“preUpload”
}

“direct”

Update mode

Definition	Description
“direct”	Directly update master data
“preUpload”	Upload master data and then update

settings

string

{mode} == “direct”

✓*

~ 5242880 chars

Master Data

* Required if mode is “direct”

uploadToken

string

{mode} == “preUpload”

✓*

~ 1024 chars

Token obtained by pre-upload

Used to apply the uploaded master data.

* Required if mode is “preUpload”

GetAttr

Resource creation results that can be retrieved using the !GetAttr tag

	Type	Description
Item	CurrentRateMaster	Updated master data of the currently active Rate Models

Implementation Example

Type: GS2::Enhance::CurrentRateMaster
Properties:
  NamespaceName: namespace-0001
  Mode: direct
  Settings: {
    "version": "2020-08-22",
    "rateModels": [
      {
        "name": "character-friendly",
        "targetInventoryModelId": "grn:inventory:character",
        "acquireExperienceSuffix": ":friendly",
        "materialInventoryModelId": "grn:inventory:sweet",
        "experienceModelId": "grn:experience:friendly",
        "metadata": "CHARACTER_FRIENDLY",
        "acquireExperienceHierarchy": [
          "taste"
        ],
        "bonusRates": [
          {
            "rate": 1,
            "weight": 90
          }
        ]
      },
      {
        "name": "character-level",
        "targetInventoryModelId": "grn:inventory:character",
        "acquireExperienceSuffix": ":level",
        "materialInventoryModelId": "grn:inventory:material",
        "experienceModelId": "grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
        "metadata": "CHARACTER_LEVEL",
        "acquireExperienceHierarchy": [
          "experience"
        ],
        "bonusRates": [
          {
            "rate": 1,
            "weight": 90
          },
          {
            "rate": 1.5,
            "weight": 9
          },
          {
            "rate": 2,
            "weight": 1
          }
        ]
      }
    ],
    "unleashRateModels": [
    ]
  }
  UploadToken: null

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


SampleStack := core.NewStack()
enhance.NewNamespace(
    &SampleStack,
    "namespace-0001",
    enhance.NamespaceOptions{},
).MasterData(
    []enhance.RateModel{
        enhance.NewRateModel(
            "character-friendly",
            "grn:inventory:character",
            ":friendly",
            "grn:inventory:sweet",
            "grn:experience:friendly",
            enhance.RateModelOptions{
                Metadata: pointy.String("CHARACTER_FRIENDLY"),
                AcquireExperienceHierarchy: []string{
                    "taste",
                },
                BonusRates: []enhance.BonusRate{
                    enhance.NewBonusRate(
                        1,
                        90,
                        enhance.BonusRateOptions{},
                    ),
                },
            },
        ),
        enhance.NewRateModel(
            "character-level",
            "grn:inventory:character",
            ":level",
            "grn:inventory:material",
            "grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
            enhance.RateModelOptions{
                Metadata: pointy.String("CHARACTER_LEVEL"),
                AcquireExperienceHierarchy: []string{
                    "experience",
                },
                BonusRates: []enhance.BonusRate{
                    enhance.NewBonusRate(
                        1,
                        90,
                        enhance.BonusRateOptions{},
                    ),
                    enhance.NewBonusRate(
                        1.5,
                        9,
                        enhance.BonusRateOptions{},
                    ),
                    enhance.NewBonusRate(
                        2,
                        1,
                        enhance.BonusRateOptions{},
                    ),
                },
            },
        ),
    },
    []enhance.UnleashRateModel{
    },
)

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

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        (new \Gs2Cdk\Enhance\Model\Namespace_(
            stack: $this,
            name: "namespace-0001"
        ))->masterData(
            [
                new \Gs2Cdk\Enhance\Model\RateModel(
                    name:"character-friendly",
                    targetInventoryModelId:"grn:inventory:character",
                    acquireExperienceSuffix:":friendly",
                    materialInventoryModelId:"grn:inventory:sweet",
                    experienceModelId:"grn:experience:friendly",
                    options: new \Gs2Cdk\Enhance\Model\Options\RateModelOptions(
                        metadata:"CHARACTER_FRIENDLY",
                        acquireExperienceHierarchy:[
                            "taste",
                        ],
                        bonusRates:[
                            new \Gs2Cdk\Enhance\Model\BonusRate(
                                rate: 1,
                                weight: 90,    
                            ),
                        ]
                    )
                ),
                new \Gs2Cdk\Enhance\Model\RateModel(
                    name:"character-level",
                    targetInventoryModelId:"grn:inventory:character",
                    acquireExperienceSuffix:":level",
                    materialInventoryModelId:"grn:inventory:material",
                    experienceModelId:"grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
                    options: new \Gs2Cdk\Enhance\Model\Options\RateModelOptions(
                        metadata:"CHARACTER_LEVEL",
                        acquireExperienceHierarchy:[
                            "experience",
                        ],
                        bonusRates:[
                            new \Gs2Cdk\Enhance\Model\BonusRate(
                                rate: 1,
                                weight: 90,    
                            ),
                            new \Gs2Cdk\Enhance\Model\BonusRate(
                                rate: 1.5,
                                weight: 9,    
                            ),
                            new \Gs2Cdk\Enhance\Model\BonusRate(
                                rate: 2,
                                weight: 1,    
                            ),
                        ]
                    )
                )
            ],
            [
            ]
        );
    }
}

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

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.enhance.model.Namespace(
            this,
            "namespace-0001"
        ).masterData(
            Arrays.asList(
                new io.gs2.cdk.enhance.model.RateModel(
                    "character-friendly",
                    "grn:inventory:character",
                    ":friendly",
                    "grn:inventory:sweet",
                    "grn:experience:friendly",
                    new io.gs2.cdk.enhance.model.options.RateModelOptions()
                        .withMetadata("CHARACTER_FRIENDLY")
                        .withAcquireExperienceHierarchy(Arrays.asList(
                            "taste"
                        ))
                        .withBonusRates(Arrays.asList(
                            new io.gs2.cdk.enhance.model.BonusRate(
                                1f,
                                90        
                            )
                        ))
                ),
                new io.gs2.cdk.enhance.model.RateModel(
                    "character-level",
                    "grn:inventory:character",
                    ":level",
                    "grn:inventory:material",
                    "grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
                    new io.gs2.cdk.enhance.model.options.RateModelOptions()
                        .withMetadata("CHARACTER_LEVEL")
                        .withAcquireExperienceHierarchy(Arrays.asList(
                            "experience"
                        ))
                        .withBonusRates(Arrays.asList(
                            new io.gs2.cdk.enhance.model.BonusRate(
                                1f,
                                90        
                            ),
                            new io.gs2.cdk.enhance.model.BonusRate(
                                1.5f,
                                9        
                            ),
                            new io.gs2.cdk.enhance.model.BonusRate(
                                2f,
                                1        
                            )
                        ))
                )
            ),
            Arrays.asList(
            )
        );
    }
}

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

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2Enhance.Model.Namespace(
            stack: this,
            name: "namespace-0001"
        ).MasterData(
            new Gs2Cdk.Gs2Enhance.Model.RateModel[] {
                new Gs2Cdk.Gs2Enhance.Model.RateModel(
                    name: "character-friendly",
                    targetInventoryModelId: "grn:inventory:character",
                    acquireExperienceSuffix: ":friendly",
                    materialInventoryModelId: "grn:inventory:sweet",
                    experienceModelId: "grn:experience:friendly",
                    options: new Gs2Cdk.Gs2Enhance.Model.Options.RateModelOptions
                    {
                        metadata = "CHARACTER_FRIENDLY",
                        acquireExperienceHierarchy = new string[]
                        {
                            "taste"
                        },
                        bonusRates = new Gs2Cdk.Gs2Enhance.Model.BonusRate[]
                        {
                            new Gs2Cdk.Gs2Enhance.Model.BonusRate(
                                rate: 1f,
                                weight: 90    
                            )
                        }
                    }
                ),
                new Gs2Cdk.Gs2Enhance.Model.RateModel(
                    name: "character-level",
                    targetInventoryModelId: "grn:inventory:character",
                    acquireExperienceSuffix: ":level",
                    materialInventoryModelId: "grn:inventory:material",
                    experienceModelId: "grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
                    options: new Gs2Cdk.Gs2Enhance.Model.Options.RateModelOptions
                    {
                        metadata = "CHARACTER_LEVEL",
                        acquireExperienceHierarchy = new string[]
                        {
                            "experience"
                        },
                        bonusRates = new Gs2Cdk.Gs2Enhance.Model.BonusRate[]
                        {
                            new Gs2Cdk.Gs2Enhance.Model.BonusRate(
                                rate: 1f,
                                weight: 90    
                            ),
                            new Gs2Cdk.Gs2Enhance.Model.BonusRate(
                                rate: 1.5f,
                                weight: 9    
                            ),
                            new Gs2Cdk.Gs2Enhance.Model.BonusRate(
                                rate: 2f,
                                weight: 1    
                            )
                        }
                    }
                )
            },
            new Gs2Cdk.Gs2Enhance.Model.UnleashRateModel[] {
            }
        );
    }
}

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

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

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new enhance.model.Namespace(
            this,
            "namespace-0001",
        ).masterData(
            [
                new enhance.model.RateModel(
                    "character-friendly",
                    "grn:inventory:character",
                    ":friendly",
                    "grn:inventory:sweet",
                    "grn:experience:friendly",
                    {
                        metadata: "CHARACTER_FRIENDLY",
                        acquireExperienceHierarchy: [
                            "taste",
                        ],
                        bonusRates: [
                            new enhance.model.BonusRate(
                                1,
                                90        
                            ),
                        ]
                    }
                ),
                new enhance.model.RateModel(
                    "character-level",
                    "grn:inventory:character",
                    ":level",
                    "grn:inventory:material",
                    "grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level",
                    {
                        metadata: "CHARACTER_LEVEL",
                        acquireExperienceHierarchy: [
                            "experience",
                        ],
                        bonusRates: [
                            new enhance.model.BonusRate(
                                1,
                                90        
                            ),
                            new enhance.model.BonusRate(
                                1.5,
                                9        
                            ),
                            new enhance.model.BonusRate(
                                2,
                                1        
                            ),
                        ]
                    }
                )
            ],
            [
            ]
        );
    }
}

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

from gs2_cdk import Stack, core, enhance

class SampleStack(Stack):

    def __init__(self):
        super().__init__()
        enhance.Namespace(
            stack=self,
            name="namespace-0001",
        ).master_data(
            rate_models=[
                enhance.RateModel(
                    name='character-friendly',
                    target_inventory_model_id='grn:inventory:character',
                    acquire_experience_suffix=':friendly',
                    material_inventory_model_id='grn:inventory:sweet',
                    experience_model_id='grn:experience:friendly',
                    options=enhance.RateModelOptions(
                        metadata = 'CHARACTER_FRIENDLY',
                        acquire_experience_hierarchy = [
                            'taste',
                        ],
                        bonus_rates = [
                            enhance.BonusRate(
                                rate=1,
                                weight=90,        
                            ),
                        ]
                    ),
                ),
                enhance.RateModel(
                    name='character-level',
                    target_inventory_model_id='grn:inventory:character',
                    acquire_experience_suffix=':level',
                    material_inventory_model_id='grn:inventory:material',
                    experience_model_id='grn:gs2:ap-northeast-1:YourOwnerId:experience:namespace-0001:model:level',
                    options=enhance.RateModelOptions(
                        metadata = 'CHARACTER_LEVEL',
                        acquire_experience_hierarchy = [
                            'experience',
                        ],
                        bonus_rates = [
                            enhance.BonusRate(
                                rate=1,
                                weight=90,        
                            ),
                            enhance.BonusRate(
                                rate=1.5,
                                weight=9,        
                            ),
                            enhance.BonusRate(
                                rate=2,
                                weight=1,        
                            ),
                        ]
                    ),
                ),
            ],
            unleash_rate_models=[
            ],
        )

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

RateModel

Enhancement Rate Model

The enhancement rate is data that defines the materials used for enhancement and the target of enhancement.

Both material data and enhancement target data must be managed in GS2-Inventory. The experience value obtained from the enhancement is recorded in GS2-Inventory metadata in JSON format. Here, it is necessary to describe at which level of the metadata the experience value is stored.

A correction value can be applied to the amount of experience value that can be obtained with a certain probability of great success during enhancement. The probability of that draw is also defined in this entity.

	Type	Required	Value Limits	Description
rateModelId	string	*	~ 1024 chars	Enhancement Rate Model GRN * Set automatically by the server
name	string	✓	~ 128 chars	Enhancement Rate Model name Enhancement Rate Model-specific name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).
description	string		~ 1024 chars	Description
metadata	string		~ 2048 chars	Metadata Arbitrary values can be set in the metadata. Since they do not affect GS2’s behavior, they can be used to store information used in the game.
targetInventoryModelId	string	✓	~ 1024 chars	GS2-Inventory Inventory Model GRN usable for enhancement targets Specifies the GS2-Inventory inventory model that holds the items eligible for enhancement. The item to be enhanced must belong to this inventory model.
acquireExperienceSuffix	string	✓	~ 1024 chars	Suffix to be assigned to the property ID that stores the experience value obtained from GS2-Experience A string appended to the item’s property ID to form the GS2-Experience property ID where experience is stored. This allows the same item to have multiple experience types (e.g., “level” for character level, “like” for affinity).
materialInventoryModelId	string	✓	~ 1024 chars	GS2-Inventory Inventory Model GRN usable as enhancement material Specifies the GS2-Inventory inventory model that holds the items usable as enhancement materials. The experience value each material provides is defined in the item model’s metadata using the JSON hierarchy specified by acquireExperienceHierarchy.
acquireExperienceHierarchy	List<string>		0 ~ 10 items	Hierarchical structure of JSON data defining acquisition experience values to be stored in ItemModel metadata GS2-Enhance features a mechanism that works in conjunction with GS2-Inventory to perform enhancements. It sets the experience value when used as enhancement material in JSON format within the ItemModel metadata. For example, to define metadata with a structure like: { “aaa”: { “bbb”: { “experienceValue”: 100 } } } Specify it as: [ “aaa”, ‘bbb’, “experienceValue” ] Details are explained in the Microservices Introduction / GS2-Enhance section.
experienceModelId	string	✓	~ 1024 chars	GS2-Experience Experience Model GRN gained as a result of enhancement Specifies the GS2-Experience experience model where the experience points obtained from enhancement are recorded. The experience is added to the property identified by combining the target item’s property ID with the acquireExperienceSuffix.
bonusRates	List<BonusRate>		0 ~ 1000 items	Experience gain bonus Defines a weighted lottery for bonus experience multipliers during enhancement. Each entry specifies a multiplier (e.g., 1.5 for 150%) and a draw weight. When enhancement is performed, one entry is selected by weighted lottery to determine whether a “great success” bonus applies to the experience gained.

BonusRate

Experience Gain Bonus

Defines a single entry in the weighted lottery for determining the experience bonus multiplier during enhancement. By configuring multiple entries with different rates and weights, you can implement “great success” or “super success” mechanics with controlled probabilities.

	Type	Condition	Required	Default	Value Limits	Description
rate	float			1.0	0 ~ 10000	Experience bonus multiplier (1.0 = no bonus) The multiplier applied to the base experience value when this entry is drawn. A value of 1.0 means normal enhancement with no bonus, 1.5 means 150% experience (great success), 2.0 means 200% experience (super success), and so on.
weight	int			1	0 ~ 2147483645	Lottery weight The relative weight used in the weighted lottery when selecting the bonus rate. Higher values increase the probability of this bonus rate being selected. The actual probability is this weight divided by the sum of all weights in the bonus rate list.

UnleashRateModel

Unleash Rate Model

Defines the conditions for limit breaking (unleashing) items. Associates an item managed in GS2-Inventory with a GS2-Grade grade model to enable grade progression. Each grade level can require consuming a different number of duplicate items, allowing fine-grained control over the cost of each limit break step.

	Type	Required	Value Limits	Description
unleashRateModelId	string	*	~ 1024 chars	Unleash Rate Model GRN * Set automatically by the server
name	string	✓	~ 128 chars	Unleash Rate Model name Unleash Rate Model-specific name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).
description	string		~ 1024 chars	Description
metadata	string		~ 2048 chars	Metadata Arbitrary values can be set in the metadata. Since they do not affect GS2’s behavior, they can be used to store information used in the game.
targetInventoryModelId	string	✓	~ 1024 chars	GS2-Inventory Inventory Model GRN usable for unleash targets Specifies the GS2-Inventory inventory model that holds the items eligible for limit breaking. The item to be unleashed and the duplicate items consumed as material must both belong to this inventory model.
gradeModelId	string	✓	~ 1024 chars	Grade Model GRN Specifies the GS2-Grade grade model that tracks the limit break level of the target item. When a limit break is successfully performed, the item’s grade is incremented in this grade model.
gradeEntries	List<UnleashRateEntryModel>	✓	1 ~ 1000 items	List of Grade Entry Defines the material cost for each grade level of the limit break. Each entry maps a grade value to the number of duplicate items that must be consumed to reach that grade. For example, grade 1 might require 1 duplicate, grade 2 might require 3 duplicates, and so on.

UnleashRateEntryModel

Unleash Rate Entry Model

Defines the material cost for a single grade level in a limit break progression. Each entry specifies which grade value it applies to and how many duplicate items of the same type must be consumed to achieve that grade.

	Type	Condition	Required	Default	Value Limits	Description
gradeValue	long		✓		1 ~ 1000	Target grade The grade value that this entry defines the cost for. When performing a limit break to this grade level, the number of items specified by needCount will be consumed.
needCount	int		✓		1 ~ 1000	How many items of the same type to consume The number of duplicate items that must be consumed to perform the limit break to the target grade. These items are of the same item model as the item being unleashed.