api try catch - clienddata and analyzeData

@@ -10,11 +10,33 @@ const machineRead = require("./machineRead");
 const cliConnection = async (req, res) => {
   let clientData = {},
     analyzeData = {},
+    searchData = [];
    
+  try {
       clientData = req.body.data;
       //clientData = req.body.data;
+      if( !clientData.text.replace( /\s/g, '' ).length ) {
+          throw new Error( "client text empty" );
+      }
+  }
+  catch ( err ) {
+      console.log( err );
+      res.json( { "return_code" : -1, "error_code" : err.message } );
+      res.status( 403 );
+      return false;
+  }
   
-    analyzeData = await textAnalytic(clientData);
+  try {
+      analyzeData = await textAnalytic( clientData );
+  }
+  catch ( err ) {
+      console.log( err );
+      res.json( { "return_code" : -1, "error_code" : err.message } );
+      res.status( 502 );
+      return false;
+  }
+
+  // searchData try catch
 
   analyzeData.searchResults = searchData;
   res.send({ return_code: 0, return_data: analyzeData });