update

controller/statisticsController.js

@@ -145,7 +145,9 @@ async function getWSChangeTrend(req, res, next) {
                 }
             },
             {$project: {
-                wsTemperature: {$round: ["$wsTemperature", 2]}
+                wsTemperature: {$round: ["$wsTemperature", 2]},
+                wsMoisture: {$round: ["$wsMoisture", 2]},
+                rainfall: {$round: ["$rainfall", 2]},
             }},
             { $sort: { _id: 1 } }
         ];