[bug]: Unity AppKit.NetworkController.ChangeActiveChainAsync() is not working

[DebabratDas1]

Description

I am scanning QR code using mobile metamsk for connecting. And then when trying to switch chain on wallet using AppKit.NetworkController.ChangeActiveChainAsync() then not getting switch chain request at metamask mobile and getting an error on Unity Console

Exception: Failed to send web request: HTTP/1.1 503 Service Unavailable. Url: https://rpc.walletconnect.org/v1/account/0x65ce881f19a3d81ad6be7e7b6d35795571aa148f/balance?projectId=7afe2b7cf56a8d21fb89e343ec308c4e&currency=usd&chainId=eip155:1328
Reown.AppKit.Unity.Http.UnityHttpClient.GetAsync[T] (System.String path, System.Collections.Generic.IDictionary2[TKey,TValue] parameters, System.Collections.Generic.IDictionary2[TKey,TValue] headers) (at ./Library/PackageCache/com.reown.appkit.unity@afb2f76865d0/Runtime/Http/UnityHttpClient.cs:142)
Reown.AppKit.Unity.BlockchainApiController.GetBalanceAsync (System.String address) (at ./Library/PackageCache/com.reown.appkit.unity@afb2f76865d0/Runtime/Controllers/BlockchainApiController.cs:63)
Reown.AppKit.Unity.AccountController.UpdateBalance () (at ./Library/PackageCache/com.reown.appkit.unity@afb2f76865d0/Runtime/Controllers/AccountController.cs:199)
Reown.AppKit.Unity.AccountController.ConnectorAccountConnectedHandler (System.Object sender, Reown.AppKit.Unity.Connector+AccountConnectedEventArgs e) (at ./Library/PackageCache/com.reown.appkit.unity@afb2f76865d0/Runtime/Controllers/AccountController.cs:124)
System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__7_0 (System.Object state)

Expected behavior

AppKit.NetworkController.ChangeActiveChainAsync() should send switch network request.

Actual behavior

It's not sending request to metamask mobile wallet and showing Exception: Failed to send web request: HTTP/1.1 503 Service Unavailable. Url: https://rpc.walletconnect.org/v1/account/0x65ce881f19a3d81ad6be7e7b6d35795571aa148f/balance?projectId=7afe2b7cf56a8d21fb89e343ec308c4e&currency=usd&chainId=eip155:1328
Reown.AppKit.Unity.Http.UnityHttpClient.GetAsync[T]

Steps to reproduce

1. Connect with Wallet
2. call await AppKit.NetworkController.ChangeActiveChainAsync(seiChain);

AppKit version

1.4.0

How did you install the package?

Git via Unity Package Manager

Version of the Unity Editor

6000.1.46f1

Platform

Windows Unity Editor

What wallets did you use for testing?

Metamask Android

Troubleshooting steps

• I've tested with the latest version of the SDK
• I've checked the Unity console for errors

Additional context

Here is the code to connect with wallet and to switch chain.
We get the same error after connecting with Wallet also.

using Reown.AppKit.Unity;
using Reown.AppKit.Unity.Model;
using System;
using UnityEngine;
using UnityEngine.UI;
using static Reown.AppKit.Unity.Connector;



namespace DD.Web3.Test
{
    public class ConnectWallet : MonoBehaviour
    {
        [SerializeField] private Button connectButton;
        private Chain seiChain;

        private async void Start()
        {
            seiChain = new Chain(ChainConstants.Namespaces.Evm,
                        chainReference: "1328",
                        name: "Sei Testnet",
                        nativeCurrency: new Currency("Sei", "SEI", 18),
                        blockExplorer: new BlockExplorer("Seitrace", "https://seitrace.com"),
                        //rpcUrl: "https://evm-rpc-testnet.sei-apis.com",
                        rpcUrl: "https://quiet-necessary-scion.sei-atlantic.quiknode.pro/1bb4d0aa8bef30063dc7aa3d9c286d9f4297c371/",
                        isTestnet: true,
                        imageUrl: $"https://i.ibb.co/JwG1DpR9/SeiIcon.jpg"
                        );


            // AppKit configuration
            var appKitConfig = new AppKitConfig
            {
                // Project ID from https://cloud.reown.com/
                projectId = "7afe2b7cf56a8d21fb89e343ec308c4e",
                metadata = new Metadata(
                    "AppKit Unity",
                    "AppKit Unity Sample",
                    "https://reown.com",
                    "https://raw.githubusercontent.com/reown-com/reown-dotnet/main/media/appkit-icon.png",
                    new RedirectData
                    {
                        // Used by native wallets to redirect back to the app after approving requests
                        Native = "appkit-sample-unity://"
                    }
                ),
                customWallets = GetCustomWallets(),
                // On mobile show 5 wallets on the Connect view (the first AppKit modal screen)
                connectViewWalletsCountMobile = 5,
                supportedChains = new[]
                {
                    seiChain,
            },
                socials = new[]
                {
                    SocialLogin.Google,
                    SocialLogin.X,
                    SocialLogin.Discord,
                    SocialLogin.Apple,
                    SocialLogin.GitHub
                },

                includedWalletIds = new[]
                {
                    "82061ee410cab0e705cf38830db84ba965effc51a1e1bf43da6d39ff70ae94fb",
                },
            };




            AppKit.Initialized += (sender, eventArgs) =>
            {
                AppKit.AccountConnected += OnAccountConnected;
            };

            connectButton.onClick.AddListener(() => {
                Debug.Log("Connect Button Clicked");
                AppKit.OpenModal();
            }
            );


            Debug.Log("[AppKit Init] Initializing AppKit...");

            await AppKit.InitializeAsync(
                appKitConfig
            );

#if !UNITY_WEBGL
            // The Mixpanel are Sentry are used by the sample project to collect telemetry
            var clientId = await AppKit.Instance.SignClient.CoreClient.Crypto.GetClientId();
            Mixpanel.Identify(clientId);

            SentrySdk.ConfigureScope(scope =>
            {
                scope.User = new SentryUser
                {
                    Id = clientId
                };
            });
#endif

            Debug.Log($"[AppKit Init] AppKit initialized.");


        }

        /// <summary>
        ///     This method returns a list of Reown sample wallets on iOS and Android.
        ///     These wallets are used for testing and are not included in the default list of wallets returned by AppKit's REST API.
        ///     On other platforms, this method returns null, so only the default list of wallets is used.
        /// </summary>
        private Wallet[] GetCustomWallets()
        {
#if UNITY_IOS && !UNITY_EDITOR
            return new[]
            {
                new Wallet
                {
                    Name = "Swift Wallet",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-swift.png?raw=true",
                    MobileLink = "walletapp://"
                },
                new Wallet
                {
                    Name = "React Native Wallet",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-rn.png?raw=true",
                    MobileLink = "rn-web3wallet://"
                },
                new Wallet
                {
                    Name = "Flutter Wallet Prod",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-flutter.png?raw=true",
                    MobileLink = "wcflutterwallet://"
                }
            };
#endif

#if UNITY_ANDROID && !UNITY_EDITOR
            return new[]
            {
                new Wallet
                {
                    Name = "Kotlin Wallet",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-kotlin.png?raw=true",
                    MobileLink = "kotlin-web3wallet://"
                },
                new Wallet
                {
                    Name = "React Native Wallet",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-rn.png?raw=true",
                    MobileLink = "rn-web3wallet://"
                },
                new Wallet
                {
                    Name = "Flutter Wallet Prod",
                    ImageUrl = "https://github.com/reown-com/reown-dotnet/blob/develop/media/wallet-flutter.png?raw=true",
                    MobileLink = "wcflutterwallet://"
                }
            };
#endif
            return null;
        }


        public async void Disconnect()
        {
            await AppKit.DisconnectAsync();
        }

        private void OnAccountConnected(object sender, AccountConnectedEventArgs eventArgs)
        {
            Debug.Log("Account connected");

            
        }

        public async void SwitchChain()
        {
            Debug.Log("Will Switch Chain");

            try
            {
                Debug.Log("Try block. Switching Chain");
                await AppKit.NetworkController.ChangeActiveChainAsync(seiChain);
                Debug.Log("Chain switched");
            }
            catch (Exception e)
            {
                Debug.Log("Switching Failed Catch block");
                Debug.LogError("Failed Chain switching: " + e.Message);
            }
        }
    }
}

[linear]

APKTN-517 [bug]:

[skibitsky]

Hey @DebabratDas1,

We're looking into this issue. It sometimes happens with new addresses when loading balances. It shouldn't block you from integration since your address has already been indexed.

[DebabratDas1]

Hey @DebabratDas1,

We're looking into this issue. It sometimes happens with new addresses when loading balances. It shouldn't block you from integration since your address has already been indexed.

Thank you for your response.
Actually the bug is about Switching Network on Metamask Android after connecting via QR scan inside Editor using AppKit.NetworkController.ChangeActiveChainAsync()
Suppose on Metamask wallet Ethereum Mainnet is selected as current chain.

But my Dapp only support Sei testnet. So during initialization I have given Supported chain as Sei Testnet.
In this case dapp will be connected successfully with Metamask Android, but will give error while we'll try to get account address using

var acc = await AppKit.GetAccountAsync();
Debug.Log("Account Address : " + acc.Address);

• Step to Reproduce

1. Select any network which will not be added in Supported Chain List during Appkit initialization on Metamask Android.
2. We will give another supported chain which is currently not selected in wallet (For Example Sei Testnet) during Appkit Initialization in code.
3. Now Connect Unity Dapp with Metamask Android.
4. Try to get Account address. (It'll show null object reference error).
5. Now try to switch chain by calling AppKit.NetworkController.ChangeActiveChainAsync(), it'll do nothing. Metamask Android chain will not be switched.

Please let me know if another details needed.

[skibitsky]

Hi @DebabratDas1, can you still reproduce the issue with the latest MetaMask version?

[DebabratDas1]

Hi @DebabratDas1, can you still reproduce the issue with the latest MetaMask version?

Yes still the issue is there. Chain Switch and Chain adding is not working on Metamask Android.