GS2-Distributor 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

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 Unique Namespace name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).
description	string		~ 1024 chars	Description
transactionSettingV2	TransactionSettingV2			Transaction Setting (V2) Decides how the transactions this Namespace issues are executed. There are only two things to set: the GS2-Distributor Namespace that executes them, and whether the actions in a transaction run one at a time – so that a later action can build on what an earlier one wrote – or all at once for a shorter response time. Set this on a new Namespace. `transactionSetting`, the obsolete setting it replaces, is used only while this is unset.
assumeUserId	string		~ 1024 chars	GS2-Identifier User GRN
autoRunStampSheetNotification	NotificationSetting	✓		Push notification when transaction auto-execution is complete(Legacy specification) Configuration for sending push notifications via GS2-Gateway when a transaction completes auto-execution on the server side. This is the legacy specification; use autoRunTransactionNotification for the new specification.
autoRunTransactionNotification	NotificationSetting	✓		Push notification when transaction auto-execution is complete Configuration for sending push notifications via GS2-Gateway when a distributed transaction completes auto-execution on the server side. Notifies the client of the transaction result so it can update the local state accordingly.
logSetting	LogSetting			Log Output Setting Configuration for outputting log data of distributor operations to GS2-Log. By specifying a GS2-Log Namespace, API request and response logs for resource distribution, transaction execution, and transaction processing 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::Distributor::Namespace
Properties:
  Name: namespace-0001
  Description: null
  TransactionSettingV2: null
  AssumeUserId: grn:gs2::YourOwnerId:identifier:user:user-0001
  AutoRunStampSheetNotification: null
  AutoRunTransactionNotification: 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/distributor"
    "github.com/openlyinc/pointy"
)


SampleStack := core.NewStack()
distributor.NewNamespace(
    &SampleStack,
    "namespace-0001",
    distributor.NamespaceOptions{
        AssumeUserId: pointy.String("grn:gs2::YourOwnerId:identifier:user:user-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\Distributor\Model\Namespace_(
            stack: $this,
            name: "namespace-0001",
            options: new \Gs2Cdk\Distributor\Model\Options\NamespaceOptions(
                assumeUserId: "grn:gs2::YourOwnerId:identifier:user:user-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.distributor.model.Namespace(
                this,
                "namespace-0001",
                new io.gs2.cdk.distributor.model.options.NamespaceOptions()
                        .withAssumeUserId("grn:gs2::YourOwnerId:identifier:user:user-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.Gs2Distributor.Model.Namespace(
            stack: this,
            name: "namespace-0001",
            options: new Gs2Cdk.Gs2Distributor.Model.Options.NamespaceOptions
            {
                assumeUserId = "grn:gs2::YourOwnerId:identifier:user:user-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 distributor from "@/gs2cdk/distributor";

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new distributor.model.Namespace(
            this,
            "namespace-0001",
            {
                assumeUserId: "grn:gs2::YourOwnerId:identifier:user:user-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, distributor

class SampleStack(Stack):

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

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

TransactionSettingV2

Transaction Setting (V2)

Transaction Setting (V2) decides how the transactions issued by a Namespace are executed.

There are only two things to set:

distributorNamespaceId: the GS2-Distributor Namespace used to execute the transaction
enableParallelExecution: whether the actions in a transaction run one at a time or all at once

Whichever you choose, the transaction is executed by the server the moment it is issued, and it succeeds or fails as a whole: when an action fails, the actions that already ran are undone with it and nothing is left applied. Everything else about how a transaction runs is fixed to the recommended configuration, so there is nothing else to set.

Running the actions one at a time (the default, enableParallelExecution is false) lets each action work on top of what the actions before it wrote. The actions run in verify, consume, acquire order, and this is what lets you:

update the same row from more than one action in a single transaction, which fails when they run all at once
read what an earlier action wrote, including from List and Query and from inside a nested transaction
use %{Gs2Xxx:ActionName.path[0].field} to feed the result of an earlier verify or consume action into the parameters of a later verify, consume or acquire action

In exchange, the response time is the sum of the time taken by each action, and a transaction may contain at most 20 actions. The order within each phase is decided by the action name and then by the target resource, so you cannot choose the execution order by rearranging the actions in the request, and execution stops at the first action that fails.

Running the actions all at once (enableParallelExecution is true) executes them in parallel against a single snapshot of the data, so the response time is that of the slowest single action and there is no limit on the number of actions.

In exchange, an action cannot see what the other actions wrote, and two actions that write the same row fail the transaction with database:transaction:same.resource (400), so choose this only when you can guarantee that no two actions in the same transaction write the same data. %{...} may reference only the results of an earlier phase (verify, then consume, then acquire); a reference to an action in the same phase is left unresolved, and a phase that contains %{...} waits for the earlier phases to complete, which lengthens the response time by that amount.

Transaction Setting is the obsolete setting that Transaction Setting (V2) replaces, kept for Namespaces created before Transaction Setting (V2) existed. It applies only while Transaction Setting (V2) is unset, and setting Transaction Setting (V2) supersedes it. Three behaviours it allowed are deliberately not offered here: executing a transaction as a client-run stamp sheet, running AutoRun asynchronously via GS2-Distributor, and folding acquire actions into GS2-JobQueue.

	Type	Condition	Required	Default	Value Limits	Description
distributorNamespaceId	string			“grn:gs2:{region}:{ownerId}:distributor:default”	~ 1024 chars	GS2-Distributor Namespace GRN used to execute transactions
enableParallelExecution	bool			false		Whether to execute the actions in parallel instead of sequentially

NotificationSetting

Push Notification Setting

Configuration for sending push notifications when events occur in GS2 microservices. The push notification here refers to the processing via the WebSocket interface provided by GS2-Gateway, and is different from the push notification of a smartphone. For example, when matchmaking is completed or a friend request is received, the GS2-Gateway can send a push notification via the WebSocket interface, and the game client can detect the change of the state.

GS2-Gateway’s push notifications can be used to forward notifications to mobile push notification services when the destination device is offline. By properly utilizing mobile push notifications, you can implement a flow in which players are notified even if they exit the game during matchmaking and later return to it.

Type Condition Required Default Value Limits Description

gatewayNamespaceId

string

“grn:gs2:{region}:{ownerId}:gateway:default”

~ 1024 chars

GS2-Gateway Namespace to use for push notifications

Specify the GS2-Gateway Namespace ID in GRN format starting with “grn:gs2:”.

enableTransferMobileNotification

bool?

false

Whether to forward the notification as a mobile push notification

When an attempt is made to send this notification and the destination device is offline, specify whether it should be forwarded as a mobile push notification.

sound

string

{enableTransferMobileNotification} == true

~ 1024 chars

Sound file name to be used for mobile push notifications

The sound file name specified here is used when sending mobile push notifications, and you can send notifications with a special sound.

* Enabled only if enableTransferMobileNotification is true

mobileNotificationMessages

List<MobileNotificationMessage>

{enableTransferMobileNotification} == true

0 ~ 100 items

Localized title and body used when forwarding to mobile push notifications

The title and the body, per language, used when the notification is forwarded as a mobile push notification to an offline player.
The entry to be used is selected in the following order: the entry whose locale matches the locale registered with the device token, then the entry whose locale is default, and finally the first entry of the list.
If this is not set, the mobile array of the notification payload is used instead, and if that is not present either, the payload itself is used as the body.

* Enabled only if enableTransferMobileNotification is true

enable

string (enum)
enum {
“Enabled”,
“Disabled”
}

“Enabled”

Whether to enable push notifications

Definition	Description
Enabled	Enabled
Disabled	Disabled

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

TransactionSetting

Transaction Setting

Transaction Setting is obsolete: Transaction Setting (V2) replaces it. It is kept for Namespaces created before Transaction Setting (V2) existed, applies only while Transaction Setting (V2) is unset, and should not be chosen for a new Namespace.

It exposes each part of transaction execution as a separate field – AutoRun, AtomicCommit, asynchronous execution using GS2-Distributor, batch application of script results, asynchronous processing of acquire actions via GS2-JobQueue, and sequential execution – so combinations other than the recommended one can be built. Transaction Setting (V2) is that recommended combination expressed as a single setting. Keep using Transaction Setting only on a Namespace that already depends on a behaviour Transaction Setting (V2) does not offer: executing a transaction as a client-run stamp sheet, running AutoRun asynchronously via GS2-Distributor, or folding acquire actions into GS2-JobQueue.

	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 transactions atomically * Enabled only if enableAutoRun is true
transactionUseDistributor	bool	{enableAtomicCommit} == true	false		Whether to execute transactions asynchronously * Enabled only if enableAtomicCommit is true
commitScriptResultInUseDistributor	bool	{transactionUseDistributor} == true	false		Whether to execute the commit processing of the script result asynchronously * Enabled only if transactionUseDistributor is true
acquireActionUseJobQueue	bool	{enableAtomicCommit} == true	false		Whether to use GS2-JobQueue to execute the acquire action * Enabled only if enableAtomicCommit is true
enableSequentialExecution	bool	{enableAtomicCommit} == true	false		Whether to execute the actions of an atomic commit sequentially so that multiple actions may update the same row * Enabled 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

MobileNotificationMessage

Localized message for mobile push notification

One entry of the per-locale message list used when a notification is forwarded as a mobile push notification. Each entry holds the title and the body for one locale. The entry to be used is selected in the following order: the entry whose locale matches the locale registered with the Firebase device token, then the entry whose locale is default, and finally the first entry of the list.

	Type	Value Limits	Description
locale	string	~ 32 chars	Language of the message The language this entry is for, matched against the locale registered with the Firebase device token. The value is free-form, such as `ja` or `en`. The special value `default` marks the fallback entry used when no entry matches the device locale.
title	string	~ 256 chars	Title of the push notification The text displayed as the title of the mobile push notification when this entry is selected. If omitted, the subject of the notification is used.
message	string	~ 1024 chars	Body text of the push notification The text displayed as the body of the mobile push notification when this entry is selected.

CurrentDistributorMaster

Currently active Distributor Model master data

This master data defines the Distributor 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.

Note

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

Request

Resource creation and update requests

Type

Condition

Required

Default

Value Limits

Description

namespaceName

string

✓

~ 128 chars

Namespace name

Unique Namespace 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 bytes (5MB)

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	CurrentDistributorMaster	Updated currently active Distributor Model master data

Implementation Example

Type: GS2::Distributor::CurrentDistributorMaster
Properties:
  NamespaceName: namespace-0001
  Mode: direct
  Settings: {
    "version": "2019-03-01",
    "distributorModels": [
      {
        "name": "basic",
        "metadata": "BASIC",
        "inboxNamespaceId": "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"
      },
      {
        "name": "special",
        "metadata": "SPECIAL",
        "inboxNamespaceId": "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001",
        "whiteListTargetIds": [
          "test"
        ]
      }
    ]
  }
  UploadToken: null

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


SampleStack := core.NewStack()
distributor.NewNamespace(
    &SampleStack,
    "namespace-0001",
    distributor.NamespaceOptions{},
).MasterData(
    []distributor.DistributorModel{
        distributor.NewDistributorModel(
            "basic",
            distributor.DistributorModelOptions{
                Metadata: pointy.String("BASIC"),
                InboxNamespaceId: pointy.String("grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"),
            },
        ),
        distributor.NewDistributorModel(
            "special",
            distributor.DistributorModelOptions{
                Metadata: pointy.String("SPECIAL"),
                InboxNamespaceId: pointy.String("grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"),
                WhiteListTargetIds: []string{
                    "test",
                },
            },
        ),
    },
)

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

class SampleStack extends \Gs2Cdk\Core\Model\Stack
{
    function __construct() {
        parent::__construct();
        (new \Gs2Cdk\Distributor\Model\Namespace_(
            stack: $this,
            name: "namespace-0001"
        ))->masterData(
            [
                new \Gs2Cdk\Distributor\Model\DistributorModel(
                    name:"basic",
                    options: new \Gs2Cdk\Distributor\Model\Options\DistributorModelOptions(
                        metadata:"BASIC",
                        inboxNamespaceId:"grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"
                    )
                ),
                new \Gs2Cdk\Distributor\Model\DistributorModel(
                    name:"special",
                    options: new \Gs2Cdk\Distributor\Model\Options\DistributorModelOptions(
                        metadata:"SPECIAL",
                        inboxNamespaceId:"grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001",
                        whiteListTargetIds:[
                            "test",
                        ]
                    )
                )
            ]
        );
    }
}

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

class SampleStack extends io.gs2.cdk.core.model.Stack
{
    public SampleStack() {
        super();
        new io.gs2.cdk.distributor.model.Namespace(
            this,
            "namespace-0001"
        ).masterData(
            Arrays.asList(
                new io.gs2.cdk.distributor.model.DistributorModel(
                    "basic",
                    new io.gs2.cdk.distributor.model.options.DistributorModelOptions()
                        .withMetadata("BASIC")
                        .withInboxNamespaceId("grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001")
                ),
                new io.gs2.cdk.distributor.model.DistributorModel(
                    "special",
                    new io.gs2.cdk.distributor.model.options.DistributorModelOptions()
                        .withMetadata("SPECIAL")
                        .withInboxNamespaceId("grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001")
                        .withWhiteListTargetIds(Arrays.asList(
                            "test"
                        ))
                )
            )
        );
    }
}

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

public class SampleStack : Gs2Cdk.Core.Model.Stack
{
    public SampleStack() {
        new Gs2Cdk.Gs2Distributor.Model.Namespace(
            stack: this,
            name: "namespace-0001"
        ).MasterData(
            new Gs2Cdk.Gs2Distributor.Model.DistributorModel[] {
                new Gs2Cdk.Gs2Distributor.Model.DistributorModel(
                    name: "basic",
                    options: new Gs2Cdk.Gs2Distributor.Model.Options.DistributorModelOptions
                    {
                        metadata = "BASIC",
                        inboxNamespaceId = "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"
                    }
                ),
                new Gs2Cdk.Gs2Distributor.Model.DistributorModel(
                    name: "special",
                    options: new Gs2Cdk.Gs2Distributor.Model.Options.DistributorModelOptions
                    {
                        metadata = "SPECIAL",
                        inboxNamespaceId = "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001",
                        whiteListTargetIds = new string[]
                        {
                            "test"
                        }
                    }
                )
            }
        );
    }
}

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

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

class SampleStack extends core.Stack
{
    public constructor() {
        super();
        new distributor.model.Namespace(
            this,
            "namespace-0001",
        ).masterData(
            [
                new distributor.model.DistributorModel(
                    "basic",
                    {
                        metadata: "BASIC",
                        inboxNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001"
                    }
                ),
                new distributor.model.DistributorModel(
                    "special",
                    {
                        metadata: "SPECIAL",
                        inboxNamespaceId: "grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001",
                        whiteListTargetIds: [
                            "test",
                        ]
                    }
                )
            ]
        );
    }
}

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

from gs2_cdk import Stack, core, distributor

class SampleStack(Stack):

    def __init__(self):
        super().__init__()
        distributor.Namespace(
            stack=self,
            name="namespace-0001",
        ).master_data(
            distributor_models=[
                distributor.DistributorModel(
                    name='basic',
                    options=distributor.DistributorModelOptions(
                        metadata = 'BASIC',
                        inbox_namespace_id = 'grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001'
                    ),
                ),
                distributor.DistributorModel(
                    name='special',
                    options=distributor.DistributorModelOptions(
                        metadata = 'SPECIAL',
                        inbox_namespace_id = 'grn:gs2:ap-northeast-1:YourOwnerId:inbox:inbox-0001',
                        white_list_target_ids = [
                            'test',
                        ]
                    ),
                ),
            ],
        )

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

DistributorModel

Distributor Model

A Distributor Model is an entity that defines the policy applied when acquiring resources beyond the inventory capacity. By processing acquisitions through GS2-Distributor, overflow resources can be forwarded as GS2-Inbox messages.

	Type	Required	Default	Value Limits	Description
distributorModelId	string	*		~ 1024 chars	Distributor Model GRN * Set automatically by the server
name	string	✓		~ 128 chars	Distributor Model name Unique Distributor Model name. Specified using alphanumeric characters, hyphens (-), underscores (_), and periods (.).
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.
inboxNamespaceId	string			~ 1024 chars	GS2-Inbox Namespace GRN to transfer overflow resources When a resource acquisition exceeds the player’s inventory capacity, the overflow resources are forwarded as a message to the specified GS2-Inbox Namespace. The player can then claim the resources from their inbox at a later time.
whiteListTargetIds	List<string>		[]	0 ~ 1000 items	Whitelist of target resource GRN prefixes that can be processed through GS2-Distributor Specify the GRN prefix of the target resources that can be processed for acquisition using this Distributor Model.