app.py

import gradio as gr
from fastapi import FastAPI
from youtube_transcript_api import YouTubeTranscriptApi
from youtube_transcript_api.proxies import WebshareProxyConfig

# Initialize FastAPI app
app = FastAPI()

# Initialize the YouTubeTranscriptApi with proxy configuration
ytt_api = YouTubeTranscriptApi(
    proxy_config=WebshareProxyConfig(
        proxy_username="tlaukrdr",  # Replace with your proxy username
        proxy_password="mc1aumn9xbhb"  # Replace with your proxy password
    )
)

# Function to fetch and format YouTube transcript using the video ID
def fetch_transcript(video_id: str):
    try:
        transcript_obj = ytt_api.fetch(video_id)
        # Extract and join only the text fields from FetchedTranscriptSnippet objects
        full_text = " ".join([snippet.text for snippet in transcript_obj.snippets])
        return full_text
    except Exception as e:
        return f"Error fetching transcript: {str(e)}"

# Gradio Interface for API (no UI)
iface = gr.Interface(
    fn=fetch_transcript,
    inputs=gr.Textbox(label="Enter YouTube Video ID"),
    outputs=gr.Textbox(label="Transcript"),
    live=False,
    api=True  # This flag turns the interface into an API
)

# FastAPI route to serve Gradio app
@app.get("/")
def read_root():
    return {"message": "Welcome to the YouTube Transcript API!"}

# Embed the Gradio interface as a FastAPI app
iface.mount(app)

# Launch the FastAPI app
if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)