app.py

import gradio as gr
from atproto import Client
from atproto_client.exceptions import BadRequestError

def get_did_from_handle(handle: str) -> str:
    """
    Get the DID for a given Bluesky handle.
    
    Args:
        handle (str): Bluesky handle (e.g., 'username.bsky.social')
        
    Returns:
        str: Success or error message
    """
    # Remove @ symbol if present
    handle = handle.strip().replace('@', '')
    
    # Initialize client
    client = Client()
    
    try:
        # Attempt to resolve handle
        response = client.resolve_handle(handle)
        return f"DID: {response.did}"
    except BadRequestError as e:
        return f"Error: Invalid handle format. Please use format 'username.bsky.social'"
    except Exception as e:
        return f"Error: {str(e)}"

# Create Gradio interface
demo = gr.Interface(
    fn=get_did_from_handle,
    inputs=[
        gr.Textbox(
            label="Enter Bluesky Handle",
            placeholder="username.bsky.social",
            info="Enter a Bluesky handle to get its DID"
        )
    ],
    outputs=gr.Textbox(label="Result"),
    title="Bluesky DID Lookup",
    description="Look up the DID (Decentralized Identifier) for any Bluesky handle. Enter a handle in the format 'username.bsky.social'.",
    examples=[
        ["atproto.bsky.social"],
        ["bsky.app"],
    ],
    theme=gr.themes.Soft()
)

if __name__ == "__main__":
    demo.launch()