Add proper version command (#63)

* Add proper version command

Adds version command compatible with web3.js

* Formatting

multiepoch-getVersion.go

@@ -46,3 +46,11 @@ func (ser *MultiEpoch) GetFaithfulVersionInfo() map[string]any {
 	faithfulVersion["epochs"] = ser.GetEpochNumbers()
 	return faithfulVersion
 }
+
+// This function should return the solana version we are compatible with
+func (ser *MultiEpoch) GetSolanaVersionInfo() map[string]any {
+  solanaVersion := make(map[string]any)
+  solanaVersion["feature-set"] = 1879391783
+  solanaVersion["solana-core"] = "1.16.7"
+  return solanaVersion
+}

multiepoch.go

@@ -298,13 +298,19 @@ func newMultiEpochHandler(handler *MultiEpoch, lsConf *ListenerConfig) func(ctx
 		method := rpcRequest.Method
 
 		if method == "getVersion" {
+			versionInfo := make(map[string]any)
 			faithfulVersion := handler.GetFaithfulVersionInfo()
+			versionInfo["faithful"] = faithfulVersion
+
+			solanaVersion := handler.GetSolanaVersionInfo()
+			for k, v := range solanaVersion {
+				versionInfo[k] = v
+			}
+
 			err := rqCtx.ReplyRaw(
 				reqCtx,
 				rpcRequest.ID,
-				map[string]any{
-					"faithful": faithfulVersion,
-				},
+				versionInfo,
 			)
 			if err != nil {
 				klog.Errorf("[%s] failed to reply to getVersion: %v", reqID, err)