for null received from iot device

src/controllers/tanksController.js

@@ -1157,14 +1157,10 @@ exports.IotDevice = async (req, reply) => {
     for (const tank of tanks) {
       const { tankhardwareId, tankHeight } = tank;
 
-  // Skip if tankHeight is null or undefined
-  if (tankHeight === null || tankHeight === undefined) {
-    continue; // Skip this iteration and move to the next tank
-  }
-
       // Find the corresponding tank in tanksSchema
       const existingTank = await Tank.findOne({ hardwareId, tankhardwareId });
       
+    
       if (existingTank) {
         // Update the waterlevel using the tankHeight value
         
@@ -1203,12 +1199,13 @@ for (const tank of tanks) {
 existingTank.waterlevel = parseInt(formatted_water_level.replace(/,/g, ''), 10);
 console.log(existingTank.waterlevel);
 
+
+
         // Save the updated tank document
         await existingTank.save();
       }
     }
 
-
     // Send the latest three documents
     const latestOttanks = await IotData.find({ hardwareId })
       .sort({ date: -1, time: -1 });
@@ -1220,7 +1217,6 @@ for (const tank of tanks) {
   }
 };
 
-
 // exports.getIotD = async(req, reply) => {
 //   try {
 //     await IotData.find({hardwareId: req.query.hardwareId})