API Reference of GS2-Friend SDK for Game Engine

Model

EzProfile

Profile

The profile stores information about the game player.

There are three types of profiles that can be set for each public range. friend The information that can be viewed by those with whom a friend relationship has been established. follow Content that can be viewed by followers. public Content that can be viewed by anyone

	Type	Require	Limitation	Description
userId	string	✓	~ 128 chars	User Id
publicProfile	string		~ 1024 chars	Public profile
followerProfile	string		~ 1024 chars	Profile for followers
friendProfile	string		~ 1024 chars	Profile for friends

EzBlackList

	Type	Require	Default	Limitation	Description
userId	string	✓		~ 128 chars	User Id
targetUserIds	List<string>			~ 10000 items	Blacklist user ID list

EzFollowUser

	Type	Require	Limitation	Description
userId	string	✓	~ 128 chars	User Id
publicProfile	string		~ 1024 chars	Public profile
followerProfile	string		~ 1024 chars	Profile for followers

EzFriendUser

	Type	Require	Limitation	Description
userId	string	✓	~ 128 chars	User Id
publicProfile	string		~ 1024 chars	Public profile
friendProfile	string		~ 1024 chars	Profile for friends

EzFriendRequest

	Type	Require	Default	Limitation	Description
userId	string	✓		~ 128 chars	Sender
targetUserId	string	✓		~ 128 chars	Target

EzPublicProfile

	Type	Require	Default	Limitation	Description
userId	string	✓		~ 128 chars	User Id
publicProfile	string			~ 1024 chars	Public profile

Methods

getProfile

Get own profile

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	EzProfile	Profile

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Profile(
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Profile(
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FProfile> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

The local cache will only be changed by executing the SDK’s API, or by executing a stamp sheet via GS2-Distributor with GS2-Gateway notification enabled, or by executing a GS2-JobQueue with GS2-Gateway notification enabled. GS2-Gateway notification enabled.

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

getPublicProfile

Get someone else’s public profile

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
userId	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	EzPublicProfile	Public Profile

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).User(
        userId: "user-0001"
    ).PublicProfile(
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).User(
        userId: "user-0001"
    ).PublicProfile(
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->User(
        "user-0001" // userId
    )->PublicProfile(
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).User(
        userId: "user-0001"
    ).PublicProfile(
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).User(
        userId: "user-0001"
    ).PublicProfile(
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->User(
        "user-0001" // userId
    )->PublicProfile(
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FPublicProfile> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

updateProfile

Update own profile

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
publicProfile	string		~ 1024 chars	Public profile
followerProfile	string		~ 1024 chars	Profile for followers
friendProfile	string		~ 1024 chars	Profile for friends

Result

	Type	Description
item	EzProfile	Updated Profile

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    var result = await domain.UpdateProfileAsync(
        publicProfile: "public",
        followerProfile: "follower",
        friendProfile: "friend"
    );
    var item = await result.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Profile(
    );
    var future = domain.UpdateProfileFuture(
        publicProfile: "public",
        followerProfile: "follower",
        friendProfile: "friend"
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Profile(
    );
    const auto Future = Domain->UpdateProfile(
        "public", // publicProfile
        "follower", // followerProfile
        "friend" // friendProfile
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

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

describeFollowUsers

Get list of followed players

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
withProfile	bool	✓	false		Get a profile together
limit	int	✓	30	1 ~ 1000	Number of data acquired
pageToken	string			~ 1024 chars	Token specifying the position from which to start acquiring data

Result

	Type	Description
items	List<EzFollowUser>	List of Following user
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.FollowsAsync(
    ).ToListAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Follows(
    );
    List<EzFollowUser> items = new List<EzFollowUser>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->Follows(
    );
    TArray<Gs2::UE5::Friend::Model::FEzFollowUserPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

follow

Follow other player

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User ID of the person want to follow

Result

	Type	Description
item	EzFollowUser	Followed user

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: true
    );
    var result = await domain.FollowAsync(
    );
    var item = await result.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: true
    );
    var future = domain.FollowFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->FollowUser(
        "user-0002", // targetUserId
        true // withProfile
    );
    const auto Future = Domain->Follow(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

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

getFollowUser

Get followed player

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
withProfile	bool	✓	false		Get a profile together
targetUserId	string	✓		~ 128 chars	User Id

Result

	Type	Description
item	EzFollowUser	Following user

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->FollowUser(
        "user-0002", // targetUserId
        nullptr // withProfile
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->FollowUser(
        "user-0002", // targetUserId
        nullptr // withProfile
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FFollowUser> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

unfollow

Unfollow other player

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFollowUser	Unfollowed user

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    var result = await domain.UnfollowAsync(
    );

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).FollowUser(
        targetUserId: "user-0002",
        withProfile: null
    );
    var future = domain.UnfollowFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->FollowUser(
        "user-0002", // targetUserId
        nullptr // withProfile
    );
    const auto Future = Domain->Unfollow(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

deleteFriend

Remove Friend

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendUser	Deleted Friend

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    var result = await domain.DeleteFriendAsync(
    );

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    var future = domain.DeleteFriendFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Friend(
        nullptr // withProfile
    )->FriendUser(
        "user-0002" // targetUserId
    );
    const auto Future = Domain->DeleteFriend(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

describeFriends

Get list of friends

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
withProfile	bool	✓	false		Get a profile together
limit	int	✓	30	1 ~ 1000	Number of data acquired
pageToken	string			~ 1024 chars	Token specifying the position from which to start acquiring data

Result

	Type	Description
items	List<EzFriendUser>	List of Friend
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.FriendsAsync(
    ).ToListAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Friends(
    );
    List<EzFriendUser> items = new List<EzFriendUser>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->Friends(
    );
    TArray<Gs2::UE5::Friend::Model::FEzFriendUserPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

Value change event handling

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

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.Friends(
    );
    List<EzFriendUser> items = new List<EzFriendUser>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    
    // Start event handling
    const auto CallbackId = Domain->SubscribeFriends(
        []() {
            // Called when an element of the list changes.
        }
    );

    // Stop event handling
    Domain->UnsubscribeFriends(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

getFriend

Get a Friend

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id
targetUserId	string	✓		~ 128 chars	User Id
withProfile	bool	✓	false		Get a profile together

Result

	Type	Description
item	EzFriendUser	Friend

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Friend(
        nullptr // withProfile
    )->FriendUser(
        "user-0002" // targetUserId
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).Friend(
        withProfile: null
    ).FriendUser(
        targetUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->Friend(
        nullptr // withProfile
    )->FriendUser(
        "user-0002" // targetUserId
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FFriendUser> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

deleteRequest

Delete friend request

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendRequest	Deleted Friend Requests

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    var result = await domain.DeleteRequestAsync(
    );

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    var future = domain.DeleteRequestFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->SendFriendRequest(
        "user-0002" // targetUserId
    );
    const auto Future = Domain->DeleteRequest(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

describeSendRequests

Get list of friend requests you have sent

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
items	List<EzFriendRequest>	List of Friend Request
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.SendRequestsAsync(
    ).ToListAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.SendRequests(
    );
    List<EzFriendRequest> items = new List<EzFriendRequest>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->SendRequests(
    );
    TArray<Gs2::UE5::Friend::Model::FEzFriendRequestPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

getSendRequest

Get friend request you have sent

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendRequest	Friend Request

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->SendFriendRequest(
        "user-0002" // targetUserId
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).SendFriendRequest(
        targetUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->SendFriendRequest(
        "user-0002" // targetUserId
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FSendFriendRequest> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

sendRequest

Get a friend requests you have sent

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User ID of the person want to be friend

Result

	Type	Description
item	EzFriendRequest	Friend request sent

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var result = await domain.SendRequestAsync(
        targetUserId: "user-0002"
    );
    var item = await result.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var future = domain.SendRequestFuture(
        targetUserId: "user-0002"
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto Future = Domain->SendRequest(
        "user-0002" // targetUserId
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

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

accept

Approve Friend Request

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
fromUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendRequest	Accepted Friend Request

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var result = await domain.AcceptAsync(
    );

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var future = domain.AcceptFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->ReceiveFriendRequest(
        nullptr, // targetUserId
        "user-0002" // fromUserId
    );
    const auto Future = Domain->Accept(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

describeReceiveRequests

Get list of received friend requests

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
items	List<EzFriendRequest>	List of Friend request
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.ReceiveRequestsAsync(
    ).ToListAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.ReceiveRequests(
    );
    List<EzFriendRequest> items = new List<EzFriendRequest>();
    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->ReceiveRequests(
    );
    TArray<Gs2::UE5::Friend::Model::FEzFriendRequestPtr> Result;
    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

getReceiveRequest

Get received friend request

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
fromUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendRequest	Friend request

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var item = await domain.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->ReceiveFriendRequest(
        nullptr, // targetUserId
        "user-0002" // fromUserId
    );
    const auto Future = Domain->Model();
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

Value change event handling

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    
    // Start event handling
    var callbackId = domain.Subscribe(
        value => {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

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

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var future = domain.Model();
    yield return future;
    var item = future.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->ReceiveFriendRequest(
        nullptr, // targetUserId
        "user-0002" // fromUserId
    );
    
    // Start event handling
    const auto CallbackId = Domain->Subscribe(
        [](TSharedPtr<Gs2::Friend::Model::FReceiveFriendRequest> value) {
            // Called when the value changes
            // The "value" is passed the value after the change.
        }
    );

    // Stop event handling
    Domain->Unsubscribe(CallbackId);

Warning

This event is called when the value in the local cache that the SDK has is changed.

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

reject

Deny friend request

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
fromUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzFriendRequest	Rejected friend request

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var result = await domain.RejectAsync(
    );

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).ReceiveFriendRequest(
        targetUserId: null,
        fromUserId: "user-0002"
    );
    var future = domain.RejectFuture(
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->ReceiveFriendRequest(
        nullptr, // targetUserId
        "user-0002" // fromUserId
    );
    const auto Future = Domain->Reject(
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

getBlackList

Get Blacklist

Request

	Type	Require	Default	Limitation	Description
namespaceName	string	✓		~ 32 chars	Namespace name
accessToken	string	✓		~ 128 chars	User Id

Result

	Type	Description
items	List<string>	Blacklisted user ID list
nextPageToken	string	Page token to retrieve the rest of the listing

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var items = await domain.BlackListsAsync(
    ).ToListAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    );
    var it = domain.BlackLists(
    );

    while (it.HasNext())
    {
        yield return it.Next();
        if (it.Error != null)
        {
            onError.Invoke(it.Error, null);
            break;
        }
        if (it.Current != null)
        {
            items.Add(it.Current);
        }
        else
        {
            break;
        }
    }

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    );
    const auto It = Domain->BlackLists(
    );

    for (auto Item : *It)
    {
        if (Item.IsError())
        {
            return false;
        }
        Result.Add(Item.Current());
    }

registerBlackList

Add user to blacklist

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzBlackList	blacklist

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).BlackList(
    );
    var result = await domain.RegisterBlackListAsync(
        targetUserId: "user-0002"
    );
    var item = await result.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).BlackList(
    );
    var future = domain.RegisterBlackListFuture(
        targetUserId: "user-0002"
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->BlackList(
    );
    const auto Future = Domain->RegisterBlackList(
        "user-0002" // targetUserId
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

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

unregisterBlackList

Remove user from blacklist

Request

	Type	Require	Limitation	Description
namespaceName	string	✓	~ 32 chars	Namespace name
accessToken	string	✓	~ 128 chars	User Id
targetUserId	string	✓	~ 128 chars	User Id

Result

	Type	Description
item	EzBlackList	Blacklist

Implementation Example

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).BlackList(
    );
    var result = await domain.UnregisterBlackListAsync(
        targetUserId: "user-0002"
    );
    var item = await result.ModelAsync();

    var domain = gs2.Friend.Namespace(
        namespaceName: "namespace-0001"
    ).Me(
        gameSession: GameSession
    ).BlackList(
    );
    var future = domain.UnregisterBlackListFuture(
        targetUserId: "user-0002"
    );
    yield return future;
    if (future.Error != null)
    {
        onError.Invoke(future.Error, null);
        yield break;
    }
    var future2 = future.Result.Model();
    yield return future2;
    if (future2.Error != null)
    {
        onError.Invoke(future2.Error, null);
        yield break;
    }
    var result = future2.Result;

    const auto Domain = Gs2->Friend->Namespace(
        "namespace-0001" // namespaceName
    )->Me(
        AccessToken
    )->BlackList(
    );
    const auto Future = Domain->UnregisterBlackList(
        "user-0002" // targetUserId
    );
    Future->StartSynchronousTask();
    if (Future->GetTask().IsError())
    {
        return false;
    }

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

Event Handler

OnFollowNotification

Notification to be used when you are followed

Name	Type	Description
namespaceName	string	Namespace name
fromUserId	string	User Id

Implementation Example

    gs2.Friend.OnFollowNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var fromUserId = notification.FromUserId;
    };

    gs2.Friend.OnFollowNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var fromUserId = notification.FromUserId;
    };

    Gs2->Friend->OnFollowNotification().AddLambda([](const auto Notification)
    {
        const auto NamespaceName = Notification->NamespaceNameValue;
        const auto FromUserId = Notification->FromUserIdValue;
    });

OnAcceptRequestNotification

Notification used when a friend request is approved

Name	Type	Description
namespaceName	string	Namespace name
targetUserId	string	User Id

Implementation Example

    gs2.Friend.OnAcceptRequestNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var targetUserId = notification.TargetUserId;
    };

    gs2.Friend.OnAcceptRequestNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var targetUserId = notification.TargetUserId;
    };

    Gs2->Friend->OnAcceptRequestNotification().AddLambda([](const auto Notification)
    {
        const auto NamespaceName = Notification->NamespaceNameValue;
        const auto TargetUserId = Notification->TargetUserIdValue;
    });

OnReceiveRequestNotification

Notification used when a friend request is received

Name	Type	Description
namespaceName	string	Namespace name
fromUserId	string	User Id

Implementation Example

    gs2.Friend.OnReceiveRequestNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var fromUserId = notification.FromUserId;
    };

    gs2.Friend.OnReceiveRequestNotification += notification =>
    {
        var namespaceName = notification.NamespaceName;
        var fromUserId = notification.FromUserId;
    };

    Gs2->Friend->OnReceiveRequestNotification().AddLambda([](const auto Notification)
    {
        const auto NamespaceName = Notification->NamespaceNameValue;
        const auto FromUserId = Notification->FromUserIdValue;
    });