Refine ERC20, ERC721, ERC1155 utility classes

Packages/io.chainsafe.web3-unity/Runtime/Common/Scripts/ILoginProvider.cs

@@ -98,7 +98,7 @@ private void ConfigureCommonServices(IWeb3ServiceCollection services)
              * to see how it's used later on.
              */
             services.ConfigureRegisteredContracts(contracts =>
-                contracts.RegisterContract("CsTestErc20", ABI.Erc20, Contracts.Erc20));
+                contracts.RegisterContract("CsTestErc20", ABI.Erc20, ChainSafeContracts.Erc20));
 
         }
     }

Packages/io.chainsafe.web3-unity/Runtime/Scripts/EVM/Token/Contracts.cs → Packages/io.chainsafe.web3-unity/Runtime/Scripts/EVM/Token/ChainSafeContracts.cs

@@ -1,6 +1,6 @@
 namespace Scripts.EVM.Token
 {
-    public class Contracts
+    public class ChainSafeContracts
     {
         public const string Erc20 = "0x358969310231363CBEcFEFe47323139569D8a88b";
         public const string Erc721 = "0x4f75BB7bdd6f7A0fD32f1b3A94dfF409F5a3F1CC";

Packages/io.chainsafe.web3-unity/Runtime/Scripts/EVM/Token/Erc1155Metadata.cs

@@ -0,0 +1,7 @@
+namespace Scripts.EVM.Token
+{
+    public class Erc1155Metadata
+    {
+        public string image { get; set; }
+    }
+}

Packages/io.chainsafe.web3-unity/Runtime/Scripts/EVM/Token/Erc1155UnityExtensions.cs

@@ -0,0 +1,50 @@
+using System.Diagnostics.Contracts;
+using System.Text;
+using System.Threading.Tasks;
+using ChainSafe.Gaming.Evm.Contracts.BuiltIn;
+using ChainSafe.Gaming.Ipfs;
+using ChainSafe.Gaming.Web3;
+using UnityEngine;
+using UnityEngine.Networking;
+
+namespace Scripts.EVM.Token
+{
+    public static class Erc1155UnityExtensions
+    {
+        public static async Task<Texture2D> ImportTexture(this Erc1155Contract contract, string tokenId)
+        {
+            // fetch uri from chain
+            var uri = await contract.GetUri(tokenId);
+
+            // fetch metadata from uri
+            var metaRequest = UnityWebRequest.Get(uri);
+
+            if (metaRequest.result != UnityWebRequest.Result.Success)
+            {
+                throw new Web3Exception($"Metadata request failure: {metaRequest.error}");
+            }
+
+            // prepare texture uri
+            var metadata = JsonUtility.FromJson<Erc1155Metadata>(Encoding.UTF8.GetString(metaRequest.downloadHandler.data));
+            var textureUri = IpfsHelper.RollupIpfsUri(metadata.image);
+
+            // fetch texture
+            var textureRequest = UnityWebRequestTexture.GetTexture(textureUri);
+            await textureRequest.SendWebRequest();
+
+            if (textureRequest.result != UnityWebRequest.Result.Success)
+            {
+                throw new Web3Exception($"Texture request failure: {metaRequest.error}");
+            }
+
+            var texture = ((DownloadHandlerTexture)textureRequest.downloadHandler).texture;
+
+            return texture;
+        }
+
+        public static Task<Texture2D> ImportTexture(this Erc1155Service service, string contractAddress, string tokenId)
+        {
+            return service.BuildContract(contractAddress).ImportTexture(tokenId);
+        }
+    }
+}