From b2867b1955cd647234b4025c8d6f61a9d0b6925a Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Mon, 25 Aug 2025 21:45:13 +0200
Subject: [PATCH] Feature/randomize minutes of hourly data gathering cron job
 (#5403)

* Randomize minutes of hourly data gathering

* Update changelog
---
 CHANGELOG.md                               | 1 +
 apps/api/src/services/cron/cron.service.ts | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1797d94ab..da75dde40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Randomized the minutes of the hourly data gathering cron job
 - Refactored the dialog footer component to standalone
 - Refactored the dialog header component to standalone
 - Refactored the landing page to standalone
diff --git a/apps/api/src/services/cron/cron.service.ts b/apps/api/src/services/cron/cron.service.ts
index b770aa2d7..88fcabce2 100644
--- a/apps/api/src/services/cron/cron.service.ts
+++ b/apps/api/src/services/cron/cron.service.ts
@@ -17,6 +17,7 @@ import { Cron, CronExpression } from '@nestjs/schedule';
 
 @Injectable()
 export class CronService {
+  private static readonly EVERY_HOUR_AT_RANDOM_MINUTE = `${new Date().getMinutes()} * * * *`;
   private static readonly EVERY_SUNDAY_AT_LUNCH_TIME = '0 12 * * 0';
 
   public constructor(
@@ -28,8 +29,8 @@ export class CronService {
     private readonly userService: UserService
   ) {}
 
-  @Cron(CronExpression.EVERY_HOUR)
-  public async runEveryHour() {
+  @Cron(CronService.EVERY_HOUR_AT_RANDOM_MINUTE)
+  public async runEveryHourAtRandomMinute() {
     if (await this.isDataGatheringEnabled()) {
       await this.dataGatheringService.gather7Days();
     }