Add capabilities caching

NethermindEth · Jan 25, 2023 · aec4e8b · aec4e8b
1 parent ef0abd2
commit aec4e8b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/Nethermind/Nethermind.Merge.Plugin/EngineRpcModule.cs b/src/Nethermind/Nethermind.Merge.Plugin/EngineRpcModule.cs
@@ -16,6 +16,7 @@ namespace Nethermind.Merge.Plugin;
 
 public partial class EngineRpcModule : IEngineRpcModule
 {
+    private static IEnumerable<string>? _capabilities;
     private readonly IHandler<ExecutionStatusResult> _executionStatusHandler;
     private readonly IAsyncHandler<Keccak[], ExecutionPayloadBodyV1Result?[]> _executionGetPayloadBodiesByHashV1Handler;
     private readonly IGetPayloadBodiesByRangeV1Handler _executionGetPayloadBodiesByRangeV1Handler;
@@ -50,12 +51,12 @@ public EngineRpcModule(
 
     public ResultWrapper<IEnumerable<string>> engine_getCapabilities()
     {
-        var methods = typeof(IEngineRpcModule).GetMethods()
+        _capabilities ??= typeof(IEngineRpcModule).GetMethods()
             .Select(m => m.Name)
             .Where(m => !m.Equals(nameof(engine_getCapabilities), StringComparison.Ordinal))
             .Order();
 
-        return ResultWrapper<IEnumerable<string>>.Success(methods);
+        return ResultWrapper<IEnumerable<string>>.Success(_capabilities);
     }
 
     public async Task<ResultWrapper<ExecutionPayloadBodyV1Result?[]>> engine_getPayloadBodiesByHashV1(Keccak[] blockHashes)