MetaDataAPI V2

src/MetaDataAPI/.lambda-test-tool/SavedRequests/id 20 (bundle).json → src/MetaDataAPI/.lambda-test-tool/SavedRequests/poolId 0 chainId 97.json

@@ -1,5 +1,6 @@
 {
   "queryStringParameters": {
-    "id": 20
+    "poolId": 0,
+    "chainId": 97
   }
 }

src/MetaDataAPI/.lambda-test-tool/SavedRequests/id 2.json → src/MetaDataAPI/.lambda-test-tool/SavedRequests/poolId 1 chainId 97.json

@@ -1,5 +1,6 @@
 {
   "queryStringParameters": {
-    "id": 2
+    "poolId":1,
+    "chainId": 97
   }
 }

src/MetaDataAPI/BlockchainManager/IChainManager.cs

@@ -0,0 +1,9 @@
+using System.Numerics;
+using MetaDataAPI.BlockchainManager.Models;
+
+namespace MetaDataAPI.BlockchainManager;
+
+public interface IChainManager
+{
+    public ChainInfo FetchChainInfo(BigInteger chainId);
+}

src/MetaDataAPI/BlockchainManager/LocalChainManager.cs

@@ -0,0 +1,17 @@
+using System.Numerics;
+using MetaDataAPI.BlockchainManager.Models;
+
+namespace MetaDataAPI.BlockchainManager;
+
+public class LocalChainManager : IChainManager
+{
+    private readonly IDictionary<BigInteger, ChainInfo> localChainInfo = new Dictionary<BigInteger, ChainInfo>
+    {
+        { 97, new ChainInfo(97, "https://data-seed-prebsc-1-s1.binance.org:8545/", "0xe42876a77108E8B3B2af53907f5e533Cba2Ce7BE") }
+    };
+
+    public ChainInfo FetchChainInfo(BigInteger chainId)
+    {
+        return localChainInfo[chainId];
+    }
+}

src/MetaDataAPI/BlockchainManager/Models/ChainInfo.cs

@@ -0,0 +1,18 @@
+using System.Numerics;
+using Net.Web3.EthereumWallet;
+
+namespace MetaDataAPI.BlockchainManager.Models;
+
+public class ChainInfo
+{
+    public BigInteger ChainId { get; set; }
+    public string RpcUrl { get; set; }
+    public EthereumAddress LockDealNFT { get; set; }
+
+    public ChainInfo(BigInteger chainId, string rpcUrl, EthereumAddress lockDealNft)
+    {
+        ChainId = chainId;
+        RpcUrl = rpcUrl;
+        LockDealNFT = lockDealNft;
+    }
+}

src/MetaDataAPI/Environments.cs

@@ -4,14 +4,10 @@ namespace MetaDataAPI;
 
 public enum Environments
 {
-    [EnvironmentVariable(isRequired: true)]
-    LOCK_DEAL_NFT_ADDRESS,
-    [EnvironmentVariable(isRequired: true)]
-    RPC_URL,
     [EnvironmentVariable(isRequired: true)]
     NFT_HTML_ENDPOINT,
     [EnvironmentVariable(isRequired: true)]
-    HTML_TO_IMAGE_ENDPOINT_TEMPLATE,
+    HTML_TO_IMAGE_ENDPOINT,
     [EnvironmentVariable(isRequired: true)]
     TLY_API_KEY
 }

src/MetaDataAPI/Erc20Manager/Erc20Provider.cs

@@ -0,0 +1,34 @@
+using System.Numerics;
+using Net.Web3.EthereumWallet;
+using Net.Cache.DynamoDb.ERC20;
+using Net.Cache.DynamoDb.ERC20.Models;
+
+namespace MetaDataAPI.Erc20Manager;
+
+public class Erc20Provider : IErc20Provider
+{
+    private readonly ERC20CacheProvider provider;
+
+    public Erc20Provider()
+    {
+        provider = new ERC20CacheProvider();
+    }
+
+    public Erc20Provider(ERC20CacheProvider provider)
+    {
+        this.provider = provider;
+    }
+
+    public Erc20Token GetErc20Token(string rpcUrl, BigInteger chainId, EthereumAddress address)
+    {
+        var cache = provider.GetOrAdd(
+            new GetCacheRequest(
+                chainId: (long)chainId, //TODO: Check for potential overflow or data loss when upcasting BigInteger to Int64
+                address,
+                rpcUrl,
+                false
+            )
+        );
+        return new Erc20Token(cache);
+    }
+}

src/MetaDataAPI/Erc20Manager/Erc20Token.cs

@@ -0,0 +1,22 @@
+using Net.Cache.DynamoDb.ERC20.Models;
+using Net.Web3.EthereumWallet.Extensions;
+
+namespace MetaDataAPI.Erc20Manager;
+
+public class Erc20Token
+{
+    public string Name { get; set; }
+    public string Symbol { get; set; }
+    public string Address { get; set; }
+    public byte Decimals { get; set; }
+
+    public Erc20Token(ERC20DynamoDbTable cacheErc20)
+    {
+        Name = cacheErc20.Name;
+        Symbol = cacheErc20.Symbol;
+        Address = cacheErc20.Address;
+        Decimals = cacheErc20.Decimals;
+    }
+
+    public override string ToString() => $"{Name} ({Symbol}@{Address.ToShortAddress(5)})";
+}

src/MetaDataAPI/Erc20Manager/IErc20Provider.cs

@@ -0,0 +1,9 @@
+using System.Numerics;
+using Net.Web3.EthereumWallet;
+
+namespace MetaDataAPI.Erc20Manager;
+
+public interface IErc20Provider
+{
+    public Erc20Token GetErc20Token(string rpcUrl, BigInteger chainId, EthereumAddress address);
+}

src/MetaDataAPI/Extensions/DateTimeExtensions.cs

@@ -0,0 +1,10 @@
+using System.Numerics;
+
+namespace MetaDataAPI.Extensions;
+
+public static class DateTimeExtensions
+{
+    public static string DateTimeStringFormat(this DateTime dateTime) => $"{dateTime:MM/dd/yyyy} {dateTime:HH:mm:ss}";
+    public static string DateTimeStringFormat(this BigInteger timestamp) => 
+        DateTimeStringFormat(DateTimeOffset.FromUnixTimeSeconds((long)timestamp).UtcDateTime);
+}