From a0d5718675a4c66b5e4904c9b90c6f9ea5603160 Mon Sep 17 00:00:00 2001
From: John McLear <john@mclear.co.uk>
Date: Tue, 3 Nov 2020 22:28:50 +0000
Subject: [PATCH] docs

---
 doc/api/hooks_server-side.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/doc/api/hooks_server-side.md b/doc/api/hooks_server-side.md
index a319910ba..224d3c7e4 100644
--- a/doc/api/hooks_server-side.md
+++ b/doc/api/hooks_server-side.md
@@ -751,6 +751,21 @@ exports.exportHtmlAdditionalTagsWithData = function(hook, pad, cb){
 };
 ```
 
+## exportEtherpadAdditionalContent
+Called from src/node/utils/ExportEtherpad.js and src/node/utils/ImportEtherpad.js
+
+Things in context:
+
+Useful for exporting and importing non-pad centric data stored about a pad.  For example in ep_comments_page the comments are stored as comments:padId:uniqueIdOfComment and as such when you export .etherpad this data is not included.
+
+Example:
+```
+// Add support for exporting comments metadata
+exports.exportEtherpadAdditionalContent = function(hook_name, context, callback){
+  return callback(["comments"]);
+};
+```
+
 ## userLeave
 Called from src/node/handler/PadMessageHandler.js