aiohttpを使ったWebスクレイピングの方法

pip install aiohttp

import asyncio
import aiohttp

async def fetch(url):
    async with aiohttp.ClientSession() as session:
        async with session.get(url) as response:
            status = response.status
            text = await response.text()
            print(f'Status Code: {status}')
            print('Response Body:', text)

if __name__ == '__main__':
    asyncio.run(fetch('https://httpbin.org/get'))

import asyncio
import aiohttp
from bs4 import BeautifulSoup

async def fetch_content(url):
    async with aiohttp.ClientSession() as session:
        async with session.get(url) as response:
            return await response.text()

async def scrape_quotes():
    url = 'http://quotes.toscrape.com/'
    html = await fetch_content(url)
    soup = BeautifulSoup(html, 'html.parser')
    quotes = soup.find_all('div', class_='quote')
    for quote in quotes:
        text = quote.find('span', class_='text').get_text(strip=True)
        author = quote.find('small', class_='author').get_text(strip=True)
        print(f'{text} — {author}')

if __name__ == '__main__':
    asyncio.run(scrape_quotes())

“The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.” — Albert Einstein
“It is our choices, Harry, that show what we truly are, far more than our abilities.” — J.K. Rowling
... (その他の引用)

pip install capsolver

import asyncio
import os
import aiohttp
import capsolver

# CapSolver APIキーを設定します
capsolver.api_key = os.getenv("CAPSOLVER_API_KEY", "Your CapSolver API Key")
PAGE_URL = os.getenv("PAGE_URL", "https://example.com")  # CAPTCHAのあるページのURL
SITE_KEY = os.getenv("SITE_KEY", "SITE_KEY")             # CAPTCHAサイトキー

async def solve_recaptcha_v2():
    solution = capsolver.solve({
        "type": "ReCaptchaV2TaskProxyless",
        "websiteURL": PAGE_URL,
        "websiteKey": SITE_KEY
    })
    return solution['solution']['gRecaptchaResponse']

async def access_protected_page():
    captcha_response = await solve_recaptcha_v2()
    print("Captcha Solved!")

    async with aiohttp.ClientSession() as session:
        data = {
            'g-recaptcha-response': captcha_response,
            # Webサイトで要求される場合、他のフォームデータを含めます
        }
        async with session.post(PAGE_URL, data=data) as response:
            content = await response.text()
            print('Page Content:', content)

if __name__ == '__main__':
    asyncio.run(access_protected_page())

import asyncio
import aiohttp

async def fetch(url, proxy):
    async with aiohttp.ClientSession() as session:
        async with session.get(url, proxy=proxy) as response:
            return await response.text()

async def main():
    proxy = 'http://username:password@proxyserver:port'
    url = 'https://httpbin.org/ip'
    content = await fetch(url, proxy)
    print('Response Body:', content)

if __name__ == '__main__':
    asyncio.run(main())

import asyncio
import aiohttp

async def main():
    jar = aiohttp.CookieJar()
    async with aiohttp.ClientSession(cookie_jar=jar) as session:
        await session.get('https://httpbin.org/cookies/set?name=value')
        # Cookieを表示します
        for cookie in jar:
            print(f'{cookie.key}: {cookie.value}')

if __name__ == '__main__':
    asyncio.run(main())

import asyncio
import aiohttp

async def main():
    headers = {
        'User-Agent': 'Mozilla/5.0 (compatible)',
        'Accept-Language': 'en-US,en;q=0.5',
    }
    data = {
        'username': 'testuser',
        'password': 'testpass',
    }
    async with aiohttp.ClientSession() as session:
        async with session.post('https://httpbin.org/post', headers=headers, data=data) as response:
            json_response = await response.json()
            print('Response JSON:', json_response)

if __name__ == '__main__':
    asyncio.run(main())