the-big-scraper / app.py
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# (____ || | | |(_ _)| _ \ / _ \ / ___)(_) | __ / / _ \ / _ | / ___)| | / _ | / _ \ | ||_|| |(____ | /___)| || _ \ | |
# / ___ || |_| | | |_ | | | || |_| || | _ | | \ \ | |_| |( (_| || | | |( (_| || |_| | | | | |/ ___ ||___ || || | | || |
# \_____||____/ \__)|_| |_| \___/ |_| (_) |_| |_| \___/ \____||_| |_| \___ | \___/ |_| |_|\_____|(___/ |_||_| |_||_|
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#
# Last updated in: 8/15/2024
#
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# ------------------------------------------------------------------------------
# IMPORTS
# ------------------------------------------------------------------------------
import gradio as gr
from bs4 import BeautifulSoup as Soup
from langchain_community.document_loaders import (AsyncHtmlLoader,
NewsURLLoader, PubMedLoader,
PlaywrightURLLoader,
RecursiveUrlLoader,
SeleniumURLLoader,
UnstructuredURLLoader,
WebBaseLoader)
# ------------------------------------------------------------------------------
# THE BIG SCRAPER METHOD
# ------------------------------------------------------------------------------
def extractDataFromUrls(urls: str, loader_type: str):
"""Extracts data from provided URLs using specified loader type.
Args:
urls (str): Comma-separated URLs to extract data from.
loader_type (str): Type of loader to use for data extraction.
Returns:
tuple: A tuple containing the extracted data in JSON format and as a list of Document objects.
Returns error messages if an exception occurs.
"""
try:
urls = urls.split(',')
data = []
# Instantiate the selected loader based on loader_type
if loader_type == 'AsyncHtmlLoader':
loader = AsyncHtmlLoader(urls)
elif loader_type == 'UnstructuredURL':
loader = UnstructuredURLLoader(urls=urls)
elif loader_type == 'RecursiveURL':
loader = RecursiveUrlLoader(
url=urls[0], max_depth=2, extractor=lambda x: Soup(x, "html.parser").text
)
elif loader_type == 'SeleniumURL':
loader = SeleniumURLLoader(urls=urls)
elif loader_type == 'SeleniumURLH':
loader = SeleniumURLLoader(urls=urls, headless=False)
elif loader_type == 'PlaywrightURL':
loader = PlaywrightURLLoader(urls=urls)
elif loader_type == 'PubMed':
loader = PubMedLoader(urls[0])
elif loader_type == 'NewsURL':
loader = NewsURLLoader(urls)
elif loader_type == 'WebBaseLoader':
loader = WebBaseLoader(urls)
else:
return "Not Implemented. Development in Progress", "Work In Progress"
# Load data using the selected loader
data = loader.load()
# Convert data to JSON format
jsonData = []
for item in data:
jsonData.append(item.to_json())
return jsonData, data
except Exception as err:
return "An Error Occurred. Contact Developer" + str(err), "Error Occured. Boom"
# ------------------------------------------------------------------------------
# GRADIO
# ------------------------------------------------------------------------------
# Define choices for the dropdown menu
choices = [
'AsyncHtmlLoader', 'UnstructuredURL', 'RecursiveURL', 'PubMed',
'WebBaseLoader', 'Scrapy', 'PySpider', 'Beautiful Soup',
'SeleniumURL', 'SeleniumURLH', 'PlaywrightURL', 'NewsURL',
]
# Create the Gradio interface
demo = gr.Interface(
fn=extractDataFromUrls,
inputs=[
gr.Textbox(label="Enter your comma separated URLs here"),
gr.Dropdown(choices=choices, label="Pick your Loader from here")
],
outputs=["json", "textbox"],
allow_flagging='never',
theme="sudeepshouche/minimalist"
)
# Launch the Gradio interface
demo.launch()