From 843281ce8708c9d2278918bed3d037372c4f22da Mon Sep 17 00:00:00 2001
From: Patrick Lodder <patricklodder@users.noreply.github.com>
Date: Wed, 10 Mar 2021 12:08:36 +0100
Subject: [PATCH] [qt] User-friendly interpretation of null responses in rpc
 console

  Translates "null" (UniValueNull) to "Empty response".
---
 src/qt/rpcconsole.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 77e5e03e6..7bf01c906 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -752,10 +752,19 @@ void RPCConsole::message(int category, const QString &message, bool html)
     out += "<table><tr><td class=\"time\" width=\"65\">" + timeString + "</td>";
     out += "<td class=\"icon\" width=\"32\"><img src=\"" + categoryClass(category) + "\"></td>";
     out += "<td class=\"message " + categoryClass(category) + "\" valign=\"middle\">";
+
+    QString interpretedMessage;
+    if(category == CMD_REPLY && message == "null")
+    {
+        interpretedMessage = "Empty response";
+    } else {
+        interpretedMessage = message;
+    }
+
     if(html)
-        out += message;
+        out += interpretedMessage;
     else
-        out += GUIUtil::HtmlEscape(message, false);
+        out += GUIUtil::HtmlEscape(interpretedMessage, false);
     out += "</td></tr></table>";
     ui->messagesWidget->append(out);
 }