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from typing import Union
import re
from youtube_transcript_api import YouTubeTranscriptApi
from youtube_transcript_api.formatters import TextFormatter
from transformers import pipeline
from fastapi import FastAPI, Query
from fastapi.staticfiles import StaticFiles
from fastapi.responses import FileResponse
app = FastAPI()
text_summary = pipeline("summarization", model="Falconsai/text_summarization", max_length=12000)
def extract_video_id(url: str) -> Union[str, None]:
regex = r"(?:youtube\.com\/(?:[^\/\n\s]+\/\S+\/|(?:v|e(?:mbed)?)\/|\S*?[?&]v=)|youtu\.be\/)([a-zA-Z0-9_-]{11})"
match = re.search(regex, url)
if match:
return match.group(1)
return None
def get_youtube_transcript(video_url: str) -> Union[str, None]:
video_id = extract_video_id(video_url)
if not video_id:
return "Video ID could not be extracted."
try:
transcript = YouTubeTranscriptApi.get_transcript(video_id)
formatter = TextFormatter()
text_transcript = formatter.format_transcript(transcript)
return text_transcript
except Exception as e:
return f"An error occurred: {e}"
def summarize_text(text: str) -> str:
summarized_text = text_summary(text)
return summarized_text[0]['summary_text']
# Get the input from the frontend
@app.get("/getdata")
def get_data(input: str = Query(..., title="YouTube Video URL")) -> dict:
transcript = get_youtube_transcript(input)
if transcript:
summary = summarize_text(transcript)
return {"summary": summary}
else:
return {"error": "Failed to get transcript from the YouTube video."}
app.mount('/', StaticFiles(directory="static", html=True), name="static")
@app.get('/')
def index() -> FileResponse:
return FileResponse('/app/static/index.html', media_type="text/html")
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