From 12bf6c165373d75d925d81202ef358eb0ab5d392 Mon Sep 17 00:00:00 2001
From: Gilles Hamel <hamelg@laposte.net>
Date: Mon, 27 Apr 2020 11:18:09 +0200
Subject: [PATCH] Enable reloading data.json

To reload data, post the url /reload. ie:
curl -X POST http://localhost:3003/reload
---
 routes/index.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/routes/index.js b/routes/index.js
index e044d9b..6f44022 100644
--- a/routes/index.js
+++ b/routes/index.js
@@ -37,6 +37,24 @@ router.get('/', function(req, res, next) {
   res.render('index', { title: 'Grafana SimpleJSON Value Mapper' });
 });
 
+/**
+ * Reload data.json
+ */
+router.post('/reload', isAuthorized, function(req, res, next) {
+
+    for (var k in require.cache) {
+
+        if (! k.match(/\/server\/data.json$/)) continue;
+
+        delete require.cache[k];
+        break;
+    }
+
+    data = require('../server/data.json');
+    res.end();
+    return;
+});
+
 /**
  * This is the API endpoint that Grafana Simple JSON Datasources uses for metrics and template variables.
  */