feat(influxdb): add setting for skipping unchanged values on database…

… save

src/config/index.ts

@@ -31,6 +31,12 @@ const config = convict({
       default: false,
       env: 'INFLUXDB_ENABLED',
     },
+    skip_same_values: {
+      doc: 'if the value has not changed since the last value, dont write it into the db',
+      format: Boolean,
+      default: true,
+      env: 'INFLUXDB_SKIP_SAME_VALUES',
+    },
     url: {
       doc: 'The URL Endpoint for InfluxDB',
       format: String,

src/dataHandler/influxdb.ts

@@ -27,7 +27,12 @@ export class Influxdb extends DataReceiver<DataPackage> {
     const points: Point[] = [];
     for (key in data) {
       //skip if value has not changed since the last package to reduce load on the database saving part
-      if (data[key] === this.lastValues[key]) continue;
+      // AND setting is true to skip values
+      if (
+        config.get('influxdb.skip_same_values') &&
+        data[key] === this.lastValues[key]
+      )
+        continue;
       const point = new Point(key);
       point.floatField('value', data[key]);
       points.push(point);