Update app.py

app.py

@@ -1,5 +1,6 @@
 # from backend import ResultPipeline
 import streamlit as st
+from backend import InvoicePipeline
 def main():
     # Just for setting up the title & head bar
     st.set_page_config(page_title = "Bill App")
@@ -10,8 +11,22 @@ def main():
     submit = st.button("Extract")
 
     # If a user has submitted the fieles, we need to call our pipeline
+    if submit:
+        with st.spinner("Please wait, while we are processing your information..."):
+            pipe = InvoicePipeline(files)
+            df_results = pipe.run()
+            st.write(df_results)
     
     
+            convert_to_csv = df_results.to_csv(index = False).encode("utf-8")
+            st.download_button(
+                "Download",
+                convert_to_csv,
+                "bills.csv",
+                "text/csv",
+                key = "download-csv"
+            )
+    
 
 # Calling the main function
 if __name__ == "__main__":