> For the complete documentation index, see [llms.txt](/llms.txt)

# GS2-MegaField 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 managed by the Deploy operation

### Namespace

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 | Condition | Required | Default | Value Limits | Description |
| --- | --- | --- | --- | --- | --- | --- |
| name | string |  | ✓|  |  ~ 128 chars | Namespace name<br>Unique Namespace name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.). |
| description | string |  | |  |  ~ 1024 chars | Description |
| logSetting | [LogSetting](#logsetting) |  | |  |  | Log Output Setting |

#### GetAttr

Resource creation results that can be retrieved using the [!GetAttr](/articles/tech/deploy/#getattr) tag

| | Type | Description |
| --- | --- | --- |
| Item | [Namespace](../sdk#namespace) | Namespace created

#### Implementation Example




**GS2-Deploy(YAML)**
```yaml

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

```

**Go**
```go

import (
    "github.com/gs2io/gs2-golang-cdk/core"
    "github.com/gs2io/gs2-golang-cdk/megaField"
)


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

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

```

**PHP**
```php

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        new \Gs2Cdk\MegaField\Model\Namespace_(
            stack: $this,
            name: "namespace-0001",
            options: new \Gs2Cdk\MegaField\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

```

**Java**
```java

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.megaField.model.Namespace(
                this,
                "namespace-0001",
                new io.gs2.cdk.megaField.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

```

**C#**
```csharp

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2MegaField.Model.Namespace(
            stack: this,
            name: "namespace-0001",
            options: new Gs2Cdk.Gs2MegaField.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

```

**TypeScript**
```typescript

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

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new megaField.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

```

**Python**
```python

from gs2_cdk import Stack, core, mega_field

class SampleStack(Stack):

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

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

```


#### LogSetting

Log Output Setting

Manages log output settings.
This type holds the identifier of the log Namespace used to output log data.
The log Namespace ID specifies the GS2-Log Namespace to aggregate and store the log data.
Through this setting, API request and response log data under this Namespace will be output to the target GS2-Log.
GS2-Log provides logs in real time, which can be used for system monitoring, analysis, debugging, etc.

|  | Type | Condition | Required | Default | Value Limits | Description |
| --- | --- | --- | --- | --- | --- | --- |
| loggingNamespaceId | string |  | ✓ |  |  ~ 1024 chars | GS2-Log Namespace GRN to output logs<br>Must be specified in GRN format starting with "grn:gs2:". |

---

### CurrentFieldMaster

Currently active Field Model master data

This master data defines the Field Models currently active within the Namespace.
GS2 uses JSON format files for managing master data.
By uploading these files, you can apply the master data to the server.

To create JSON files, GS2 provides a master data editor within the management console.
Additionally, you can create tools better suited for game operations and export JSON files in the appropriate format.
{{% alert title="Note" color="info" %}}
Please refer to [GS2-MegaField Master Data Reference](api_reference/mega_field/master_data/) for the JSON file format.
{{% /alert %}}

#### Request

Resource creation and update requests

|  | Type | Condition | Required | Default | Value Limits | Description |
| --- | --- | --- | --- | --- | --- | --- |
| namespaceName | string |  | ✓|  |  ~ 128 chars | Namespace name<br>Unique Namespace name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.). |
| mode | string (enum)<br>enum {<br>"direct",<br>"preUpload"<br>}<br> |  | | "direct" |  | Update mode"direct": Directly update master data / "preUpload": Upload master data and then update /  |
| settings | string | {mode} == "direct" | ✓*|  |  ~ 5242880 bytes (5MB) | Master Data<br>* Required if mode is "direct" |
| uploadToken | string | {mode} == "preUpload" | ✓*|  |  ~ 1024 chars | Token obtained by pre-upload<br>Used to apply the uploaded master data.<br>* Required if mode is "preUpload" |

#### GetAttr

Resource creation results that can be retrieved using the [!GetAttr](/articles/tech/deploy/#getattr) tag

| | Type | Description |
| --- | --- | --- |
| Item | [CurrentFieldMaster](../sdk#currentfieldmaster) | Updated master data of the currently active Field Models

#### Implementation Example




**GS2-Deploy(YAML)**
```yaml

Type: GS2::MegaField::CurrentFieldMaster
Properties:
  NamespaceName: namespace-0001
  Mode: direct
  Settings: {
    "version": "2022-08-28",
    "areaModels": [
      {
        "name": "area-0001",
        "metadata": "AREA_0001",
        "layerModels": [
          {
            "name": "layer-0001",
            "metadata": "LAYER_0001"
          }
        ]
      }
    ]
  }
  UploadToken: null

```

**Go**
```go

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


SampleStack := core.NewStack()
megaField.NewNamespace(
    &SampleStack,
    "namespace-0001",
    megaField.NamespaceOptions{},
).MasterData(
    []megaField.AreaModel{
        megaField.NewAreaModel(
            "area-0001",
            megaField.AreaModelOptions{
                Metadata: pointy.String("AREA_0001"),
                LayerModels: []megaField.LayerModel{
                    megaField.NewLayerModel(
                        "layer-0001",
                        megaField.LayerModelOptions{
                            Metadata: pointy.String("LAYER_0001"),
                        },
                    ),
                },
            },
        ),
    },
)

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

```

**PHP**
```php

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        (new \Gs2Cdk\MegaField\Model\Namespace_(
            stack: $this,
            name: "namespace-0001"
        ))->masterData(
            [
                new \Gs2Cdk\MegaField\Model\AreaModel(
                    name:"area-0001",
                    options: new \Gs2Cdk\MegaField\Model\Options\AreaModelOptions(
                        metadata:"AREA_0001",
                        layerModels:[
                            new \Gs2Cdk\MegaField\Model\LayerModel(
                                name: "layer-0001",
                                options: new \Gs2Cdk\MegaField\Model\Options\LayerModelOptions(
                                    metadata: "LAYER_0001",
                                ),
                            ),
                        ]
                    )
                )
            ]
        );
    }
}

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

```

**Java**
```java

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.megaField.model.Namespace(
            this,
            "namespace-0001"
        ).masterData(
            Arrays.asList(
                new io.gs2.cdk.megaField.model.AreaModel(
                    "area-0001",
                    new io.gs2.cdk.megaField.model.options.AreaModelOptions()
                        .withMetadata("AREA_0001")
                        .withLayerModels(Arrays.asList(
                            new io.gs2.cdk.megaField.model.LayerModel(
                                "layer-0001",
                                new io.gs2.cdk.megaField.model.options.LayerModelOptions()
                                    .withMetadata("LAYER_0001")
                            )
                        ))
                )
            )
        );
    }
}

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

```

**C#**
```csharp

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2MegaField.Model.Namespace(
            stack: this,
            name: "namespace-0001"
        ).MasterData(
            new Gs2Cdk.Gs2MegaField.Model.AreaModel[] {
                new Gs2Cdk.Gs2MegaField.Model.AreaModel(
                    name: "area-0001",
                    options: new Gs2Cdk.Gs2MegaField.Model.Options.AreaModelOptions
                    {
                        metadata = "AREA_0001",
                        layerModels = new Gs2Cdk.Gs2MegaField.Model.LayerModel[]
                        {
                            new Gs2Cdk.Gs2MegaField.Model.LayerModel(
                                name: "layer-0001",
                                options: new Gs2Cdk.Gs2MegaField.Model.Options.LayerModelOptions
                                {
                                    metadata = "LAYER_0001"
                                }
                            )
                        }
                    }
                )
            }
        );
    }
}

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

```

**TypeScript**
```typescript

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

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new megaField.model.Namespace(
            this,
            "namespace-0001",
        ).masterData(
            [
                new megaField.model.AreaModel(
                    "area-0001",
                    {
                        metadata: "AREA_0001",
                        layerModels: [
                            new megaField.model.LayerModel(
                                "layer-0001",
                                {
                                    metadata: "LAYER_0001"
                                }
                            ),
                        ]
                    }
                )
            ]
        );
    }
}

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

```

**Python**
```python

from gs2_cdk import Stack, core, mega_field

class SampleStack(Stack):

    def __init__(self):
        super().__init__()
        mega_field.Namespace(
            stack=self,
            name="namespace-0001",
        ).master_data(
            area_models=[
                mega_field.AreaModel(
                    name='area-0001',
                    options=mega_field.AreaModelOptions(
                        metadata = 'AREA_0001',
                        layer_models = [
                            mega_field.LayerModel(
                                name='layer-0001',
                                options=mega_field.LayerModelOptions(
                                    metadata='LAYER_0001',
                                ),
                            ),
                        ]
                    ),
                ),
            ],
        )

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

```


#### AreaModel

Area divides space, and different areas can be treated as different spaces even if they have the same coordinates.

|  | Type | Condition | Required | Default | Value Limits | Description |
| --- | --- | --- | --- | --- | --- | --- |
| areaModelId | string |  | * |  |  ~ 1024 chars | Area Model GRN<br>* Set automatically by the server |
| name | string |  | ✓ |  |  ~ 128 chars | Area Model name |
| metadata | string |  |  |  |  ~ 2048 chars | Metadata<br>Arbitrary values can be set in the metadata.<br>Since they do not affect GS2’s behavior, they can be used to store information used in the game. |
| layerModels | [List&lt;LayerModel&gt;](#layermodel) |  |  | [] | 0 ~ 1000 items | List of layer models |

#### LayerModel

Layers allow for multiple logical hierarchies within a single space.
For example, it solves the problem of an Enemy being invisible in a space with a large number of characters.
Characters are placed on Layer 1. If Enemies are placed on Layer 2, there is no need to worry about them becoming invisible, since each layer can specify the quantity to be acquired within a specified distance.

|  | Type | Condition | Required | Default | Value Limits | Description |
| --- | --- | --- | --- | --- | --- | --- |
| layerModelId | string |  | * |  |  ~ 1024 chars | Layer Model GRN<br>* Set automatically by the server |
| name | string |  | ✓ |  |  ~ 128 chars | Layer Model name |
| metadata | string |  |  |  |  ~ 2048 chars | Metadata<br>Arbitrary values can be set in the metadata.<br>Since they do not affect GS2’s behavior, they can be used to store information used in the game. |

---