展示HN：我创建了一个异步的Telegram机器人，用于捕捉80%以上的零售价格错误。
嗨，HN，
我做一些零售套利，但因为错过了大量90%折扣的漏洞而感到非常沮丧。等到有人在Slickdeals或DealNews上发布交易时，库存已经被机器人清空了。
我决定自己解决这个问题，创建了Sniper Syndicate。这是一个自定义的Python Telegram机器人，实时抓取RSS源和Reddit的信息。与其仅仅转发链接，我编写了一些正则表达式逻辑，实际从原始HTML中提取并计算折扣，过滤掉任何低于20%的真实折扣，以及抽奖或“重新上架”的垃圾信息。
这个工具在我自己的采购中运作得非常顺利（当找到匹配时会立即通知我），所以我最近通过Whop将访问权限打包发布：<a href="https://whop.com/snyper-sindicate/sniper-syndicate-membership/" rel="nofollow">https://whop.com/snyper-sindicate/sniper-syndicate-membership...</a>
我仍在改进机器人在大规模使用时如何处理速率限制，使用aiohttp，因此我很想听听你们对抓取逻辑的看法，或者有什么想法可以让价格过滤器更好！
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Hi HN,<p>I do some retail arbitrage and got incredibly frustrated missing out on massive 90% off glitches. By the time someone posts a deal on Slickdeals or DealNews, bots have already cleared the stock.<p>I decided to fix my own problem and built Sniper Syndicate. It’s a custom Python Telegram bot that scrapes RSS feeds and Reddit in real-time. Instead of just forwarding links, I wrote some Regex logic to actually extract and calculate the discounts from raw HTML, dropping anything under a 20% true discount and filtering out sweepstakes or "back in stock" spam.<p>It works beautifully for my own sourcing (it pings me the second a match is found), so I recently packaged the access via Whop: <a href="https://whop.com/snyper-sindicate/sniper-syndicate-membership/" rel="nofollow">https://whop.com/snyper-sindicate/sniper-syndicate-membershi...</a><p>I'm still improving how the bot handles rate limits at scale with aiohttp, so I'd love to hear your thoughts on the scraping logic or any ideas to make the price filters even better!