Add clientId to BlockchainAPI requests

Author: skibitsky

Packages/com.walletconnect.web3modal/Runtime/Controllers/BlockchainApiController.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using UnityEngine;
 using WalletConnect.Web3Modal.Http;
 using WalletConnect.Web3Modal.Model.BlockchainApi;
 using WalletConnectUnity.Core;
@@ -11,6 +12,8 @@ public class BlockchainApiController
     {
         private const string BasePath = "https://rpc.walletconnect.org/v1/";
         private const int TimoutSeconds = 5;
+
+        private string _clientIdQueryParam;
 
         private readonly UnityHttpClient _httpClient = new(new Uri(BasePath), TimeSpan.FromSeconds(TimoutSeconds));
 
@@ -22,7 +25,23 @@ public class BlockchainApiController
         public async Task<GetIdentityResponse> GetIdentityAsync(string address)
         {
             var projectId = ProjectConfiguration.Load().Id;
-            return await _httpClient.GetAsync<GetIdentityResponse>($"identity/{address}?projectId={projectId}");
+            var path = $"identity/{address}?projectId={projectId}";
+
+            if (string.IsNullOrWhiteSpace(_clientIdQueryParam))
+            {
+                var wc = WalletConnectConnector.WalletConnectInstance;
+                if (wc is { IsInitialized: true })
+                {
+                    var rawClientId = await wc.SignClient.Core.Crypto.GetClientId();
+                    _clientIdQueryParam = $"&clientId={Uri.EscapeDataString(rawClientId)}";
+                }
+            }
+
+            if (!string.IsNullOrWhiteSpace(_clientIdQueryParam))
+                path += _clientIdQueryParam;
+
+            Debug.Log($"Send identity request to {path}");
+            return await _httpClient.GetAsync<GetIdentityResponse>(path);
         }
 
         public async Task<GetBalanceResponse> GetBalanceAsync(string address)