fix

app.py

@@ -8,13 +8,18 @@ API_URL = os.environ.get("API_URL", "http://0.0.0.0:8021")
 APP_ENV = os.environ.get("APP_ENV", None)
 
 
-def image_to_base64(file_path):
-    if file_path is None:
+def image_to_base64(input_file):
+    if input_file is None:
         return None
 
-    # Read the file content from the file path
-    with open(file_path, "rb") as file:
-        file_bytes = file.read()
+    file_bytes = None
+    # Check if the input is a string (file path)
+    if isinstance(input_file, str):
+        with open(input_file, "rb") as file:
+            file_bytes = file.read()
+    else:
+        # Handle file-like object (_TemporaryFileWrapper)
+        file_bytes = input_file.read()
 
     return base64.b64encode(file_bytes).decode()