Update app.py

app.py

@@ -2,12 +2,12 @@ import qrcode
 import cv2
 from PIL import Image
 import gradio as gr
-import tempfile
+import io
+import base64
 import numpy as np
-import os
 
 
-# Function to generate a QR code
+# Function to generate a QR code and return base64 string
 def generate_qr(data):
     qr = qrcode.QRCode(
         version=1,
@@ -19,11 +19,11 @@ def generate_qr(data):
     qr.make(fit=True)
     img = qr.make_image(fill="black", back_color="white")
 
-    # Save QR code image to a temporary file
-    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".png")
-    img.save(temp_file.name, format="PNG")
-    temp_file.close()  # Ensure the file is saved
-    return temp_file.name  # Return the file path
+    # Encode the image as a base64 string
+    buffered = io.BytesIO()
+    img.save(buffered, format="PNG")
+    img_base64 = base64.b64encode(buffered.getvalue()).decode("utf-8")
+    return img_base64  # Return the base64 string
 
 
 # Function to read a QR code
@@ -54,19 +54,18 @@ def create_gradio_interface():
 
             with gr.Row():
                 qr_image = gr.Image(label="Generated QR Code")
-                qr_file = gr.File(label="Download QR Code")
+                qr_base64 = gr.Textbox(label="Base64 Encoded String")
 
             def generate_qr_interface(data):
                 if not data.strip():
                     raise ValueError("Input text cannot be empty!")
-                qr_file_path = generate_qr(data)
-                qr_image_pil = Image.open(qr_file_path)
-                return qr_image_pil, qr_file_path
+                img_base64 = generate_qr(data)
+                return f"data:image/png;base64,{img_base64}", img_base64
 
             generate_button.click(
                 generate_qr_interface,
                 inputs=data_input,
-                outputs=[qr_image, qr_file],
+                outputs=[qr_image, qr_base64],
             )
 
         # Tab for reading QR codes
@@ -75,7 +74,7 @@ def create_gradio_interface():
                 image_input = gr.Image(type="pil", label="Upload QR Code Image")
                 decode_button = gr.Button("Decode QR Code")
 
-            decoded_data = gr.Textbox(label="Decoded Data")
+            decoded_data = gr.Textbox(label="Decoded Data", interactive=True)
 
             def read_qr_interface(img):
                 if img is None: