From ef38316976a9c460be0bf0b9da496fdfd939990a Mon Sep 17 00:00:00 2001
From: Kevin Ansfield <kevin@ghost.org>
Date: Fri, 23 Feb 2024 19:53:27 +0000
Subject: [PATCH] Added rounding to Comments-UI API fetch timestamp (#19750)

no issue

- allows for comments to be cached for 10s to greatly reduce the load hitting Ghost
---
 apps/comments-ui/src/utils/api.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/apps/comments-ui/src/utils/api.ts b/apps/comments-ui/src/utils/api.ts
index 87d6803354..339cb767e2 100644
--- a/apps/comments-ui/src/utils/api.ts
+++ b/apps/comments-ui/src/utils/api.ts
@@ -122,7 +122,11 @@ function setupGhostApi({siteUrl = window.location.origin, apiUrl, apiKey}: {site
                 return json;
             },
             browse({page, postId}: {page: number, postId: string}) {
-                firstCommentsLoadedAt = firstCommentsLoadedAt ?? new Date().toISOString();
+                // use the most recent round 10sec timestamp to fetch comments so we can have some caching
+                const now = Date.now();
+                const timestamp = (new Date(now - (now % 10000))).toISOString();
+
+                firstCommentsLoadedAt = firstCommentsLoadedAt ?? timestamp;
 
                 const filter = encodeURIComponent(`post_id:'${postId}'+created_at:<=${firstCommentsLoadedAt}`);
                 const order = encodeURIComponent('created_at DESC, id DESC');