From 6c9eb6fec9831fc09954b3060c98391e1007decc Mon Sep 17 00:00:00 2001
From: Yanis JEDRZEJCZAK <yanis.jedrzejczak@smart-chain.fr>
Date: Tue, 14 May 2024 17:11:56 +0200
Subject: [PATCH] Adding Health Check for cloud providers

---
 src/entries/Cron.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/entries/Cron.ts b/src/entries/Cron.ts
index 760eaa9c..2ceb39da 100644
--- a/src/entries/Cron.ts
+++ b/src/entries/Cron.ts
@@ -4,12 +4,23 @@ import "reflect-metadata";
 import { Container } from "typedi";
 import { BackendVariables } from "@Common/config/variables/Variables";
 import CronService from "@Services/common/CronService/CronService";
+import http from "http";
 
 (async () => {
 	console.info("Cron started");
 
 	try {
 		const variables = await Container.get(BackendVariables).validate();
+
+		/**
+		 *  Cloud providers needs a health check endpoint to know if the server is up otherwise they will stop the app
+		 */
+		http.createServer((_req, res) => {
+		  res.writeHead(200, {'Content-Type': 'text/plain'});
+		  res.write('Health check: OK');
+		  res.end();
+		}).listen(variables.APP_PORT);
+
 		Container.get(CronService).archiveFiles();
 		await Container.get(CronService).updateUsers();
 		Container.get(CronService).checkDocumentsExpiration();
@@ -17,6 +28,7 @@ import CronService from "@Services/common/CronService/CronService";
 			Container.get(CronService).sendMails();
 			Container.get(CronService).sendRecapMails();
 		}
+
 	} catch (e) {
 		console.error(e);
 	}