Update websockets.go

rpc/websockets.go

@@ -9,6 +9,7 @@ import (
 	"math/big"
 	"net"
 	"net/http"
+	"strconv"
 	"sync"
 
 	"github.com/cosmos/cosmos-sdk/client"
@@ -202,8 +203,16 @@ func (s *websocketsServer) readLoop(wsConn *wsConn) {
 			continue
 		}
 
-		connID, ok := msg["id"].(float64)
-		if !ok {
+		var connID float64
+		switch id := msg["id"].(type) {
+		case string:
+			connID, err = strconv.ParseFloat(id, 64)
+		case float64:
+			connID = id
+		default:
+			err = fmt.Errorf("unknown type")
+		}
+		if err != nil {
 			s.sendErrResponse(
 				wsConn,
 				fmt.Errorf("invalid type for connection ID: %T", msg["id"]).Error(),