From d54a6b7621ce2d961775f9c262605171cb1fa39a Mon Sep 17 00:00:00 2001
From: Nikolaos Anastopoulos <ebababi@ebababi.net>
Date: Thu, 18 Jul 2024 14:03:09 +0300
Subject: [PATCH] Added `date` to header

In message header, `date` field is required.

Ref: https://jupyter-client.readthedocs.io/en/latest/messaging.html#message-header
---
 lib/iruby/session.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/iruby/session.rb b/lib/iruby/session.rb
index 36a8987..584de9a 100644
--- a/lib/iruby/session.rb
+++ b/lib/iruby/session.rb
@@ -2,6 +2,7 @@
 require 'iruby/session/mixin'
 
 require 'securerandom'
+require 'time'
 
 module IRuby
   class Session
@@ -79,6 +80,7 @@ def send(socket_type, message_type, content)
       header = {
         msg_type: message_type,
         msg_id:   SecureRandom.uuid,
+        date:     Time.now.utc.iso8601,
         username: 'kernel',
         session:  @session_id,
         version:  '5.0'