Update app.py

app.py

@@ -67,30 +67,35 @@ def process_json():
 @app.route('/file_upload',methods=['POST'])
 def file_Upload():
         
-        print(request.files.getlist('files[]'))
-        print(request.files)
-        print(request.form)
-        print(request.form.getlist('weburl'))
-        for filename in os.listdir(uploads_dir):
-            file_path = os.path.join(uploads_dir, filename)
-            print("Clearing Doc Directory. Trying to delete"+file_path)
-            try:
-                if os.path.isfile(file_path) or os.path.islink(file_path):
-                    os.unlink(file_path)
-                elif os.path.isdir(file_path):
-                    shutil.rmtree(file_path)
-            except Exception as e:
-                print('Failed to delete %s. Reason: %s' % (file_path, e))
-        
+        fileprovided=not request.files.getlist('files[]')[0].filename==''
+        urlProvided=not request.form.getlist('weburl')[0]==''
+        print("*******")
+        print("File Provided:"+str(fileprovided))
+        print("URL Provided:"+str(urlProvided))
+        print("*******")
+            
         documents = []
-        for file in request.files.getlist('files[]'):
-            print(file.filename)
-            file.save(os.path.join(uploads_dir, secure_filename(file.filename)))
-            loader = UnstructuredFileLoader(os.path.join(uploads_dir, secure_filename(file.filename)), mode='elements')
-            documents.extend(loader.load())
-        
-        urlLoader=WebBaseLoader(request.form.getlist('weburl'))
-        documents.extend(urlLoader.load())
+        if fileprovided:
+            #Delete Files
+            for filename in os.listdir(uploads_dir):
+                file_path = os.path.join(uploads_dir, filename)
+                print("Clearing Doc Directory. Trying to delete"+file_path)
+                try:
+                    if os.path.isfile(file_path) or os.path.islink(file_path):
+                        os.unlink(file_path)
+                    elif os.path.isdir(file_path):
+                        shutil.rmtree(file_path)
+                except Exception as e:
+                    print('Failed to delete %s. Reason: %s' % (file_path, e))
+            #Read and Embed New Files provided        
+            for file in request.files.getlist('files[]'):
+                print(file.filename)
+                file.save(os.path.join(uploads_dir, secure_filename(file.filename)))
+                loader = UnstructuredFileLoader(os.path.join(uploads_dir, secure_filename(file.filename)), mode='elements')
+                documents.extend(loader.load())
+        if urlProvided:
+            urlLoader=WebBaseLoader(request.form.getlist('weburl'))
+            documents.extend(urlLoader.load())
         
         print(uploads_dir)
         global chain;