ruia
Ruia is an async web scraping micro-framework, written with asyncio and aiohttp, aims to make crawling url as convenient as possible.
Ruia is inspired by scrapy however instead of Twisted it's based entirely on asyncio and aiohttp.
It also supports various features like cookies, headers, and proxy, which makes it very useful in dealing with complex web scraping tasks.
Example Use
```python
!/usr/bin/env python
""" Target: https://news.ycombinator.com/ pip install aiofiles """ import aiofiles
from ruia import AttrField, Item, Spider, TextField
class HackerNewsItem(Item): target_item = TextField(css_select="tr.athing") title = TextField(css_select="a.storylink") url = AttrField(css_select="a.storylink", attr="href")
async def clean_title(self, value):
return value.strip()
class HackerNewsSpider(Spider): start_urls = [ "https://news.ycombinator.com/news?p=1", "https://news.ycombinator.com/news?p=2", ] concurrency = 10 # aiohttp_kwargs = {"proxy": "http://0.0.0.0:1087"}
async def parse(self, response):
async for item in HackerNewsItem.get_items(html=await response.text()):
yield item
async def process_item(self, item: HackerNewsItem):
async with aiofiles.open("./hacker_news.txt", "a") as f:
self.logger.info(item)
await f.write(str(item.title) + "\n")
if name == "main": HackerNewsSpider.start(middleware=None) ```