Update app.py

app.py

@@ -5,6 +5,12 @@ import os
 
 # Define the function to call the API
 def translate(text, lang):
+    if not lang:
+        return "Error: Please select a translation language."
+        
+    if not text:
+        return "Error: Please enter text for translation."
+
     url = os.getenv("TRANSLATION_URL")
     payload = json.dumps({
         "text": text,
@@ -17,15 +23,18 @@ def translate(text, lang):
     # Make the API request
     response = requests.request("POST", url, headers=headers, data=payload)
     
-    # Parse the response and extract the translation
+    # Parse the response and handle potential errors
     response_data = response.json()  # Parse the JSON response
-    translation = response_data.get("translation", "Translation not found")  # Get the translation
+    if "errors" in response_data:
+        lang_error = response_data["errors"].get("lang", ["An error occurred"])[0]
+        return f"Error: {lang_error}"  # Return the error message
     
+    translation = response_data.get("translation", "Translation not found")  # Get the translation
     return translation
 
 # Create the Gradio interface with a textbox and dropdown
 textbox = gr.Textbox(placeholder="Enter text to translate...")
-dropdown = gr.Dropdown(choices=["english-twi", "twi-english"], label="Select Translation Language")
+dropdown = gr.Dropdown(choices=["", "english-twi", "twi-english"], label="Select Translation Language", value="")  # Include a default empty option
 
 # Pass both inputs to the translate function
 demo = gr.Interface(fn=translate, inputs=[textbox, dropdown], outputs="text")