E-commerce price monitoring system development practice tutorial

E-commerce price monitoring system development practice manual

Doing e-commerce friends know that the opponent's price changes are more elusive than the weather. Last month also sells 199 of the explosive, this month suddenly dropped to 169, when you find out when the yellow flowers and vegetables are cold. At this time if you can have a 24-hour surveillance of the electronic eye, that would be more worrying? Today we will nag how to use the proxy IP to create this "eyes of fire".

Why do I need a proxy IP as a bodyguard?

Nowadays, e-commerce platforms are raisingAnti-Crawler BotIt's like a supermarket security door. Ordinary crawlers are like thieves wearing slippers in the mall, they will be caught in a minute. Use your own IP to break in? The light is blocked for three days, the heavy is permanently pulled black. At this time it is necessary to proxy IP as a "masquerade" mask - each visit to change a vest, so that the platform thought it was a normal user in the price comparison.

Four steps to build a surveillance system

1. Acquisition Module: It's like installing a robotic arm for the crawler, and here we recommend using Python's Scrapy framework. Remember to access ipipgo's API in the download middleware to automatically change the IP for each request.

2. IP Pool Manager: Save the proxy IPs provided by ipipgo into Redis and get a priority queue. If you encounter a response timeout, the IP is automatically downgraded, and good IPs are prioritized for reuse.

3. Data Cleaning: Don't think that you get the price is finished, some platforms will bury false data. For example, write ¥ 199 as$199, or display the price with a picture. This time have to use OCR recognition + regular expression double insurance.

4. early warning system: Set the price reduction threshold. For example, if the opponent's price is 5% lower than ours, immediately send a pinned message to the operation. This function can be done with Python's APScheduler.

Guidelines for Rescuing Common Rollover Scenes

Q: Why do I still get blocked even though I use a proxy IP?
A: Eighty percent of the IP switch is not diligent enough. It is recommended to change IP every 5 pages, use ipipgo's volume-based package is the most cost-effective, their IP pool has50 million + resourcesIt's like a leek that can't be cut.

Q: What should I do if I always encounter CAPTCHA?
A: Adjust the request interval to 8-15 seconds to mimic a real person browsing. ipipgo's high stash of proxies can masquerade as a normal user, which is much more robust than normal proxies.

Q: How do I allocate resources to monitor 10 platforms?
A: Prioritize the monitoring tasks: use exclusive IP pool for key platforms and shared IP for non-key ones. like ipipgo's enterprise version supports multi-tasking grouping and can customize the geolocation, which is more flexible than Swiss Army Knife.

The doorway to choosing a proxy service

There are more agent service providers on the market than night market kebab stalls, but there are not many reliable ones. Recognize three things when you pick:Be more responsive than a rabbit.(at least 200ms or less), IP inventory has to be like an ants nest (starting at 10 million), and after-sales service has to be more attentive than your own mom. I've been using ipipgo for the past two years, and their fault response has never exceeded 15 minutes, and I've been able to find someone at 3am.

As a final rant, doing price monitoring is akin to guerrilla warfare. You can't piss off the platform, but you have to get the real data. Use a good proxy IP this "cloak of invisibility", with ipipgo such reliable service providers, basically in the e-commerce war to seize the first opportunity. Don't look at the toss now, when your monitoring system running up, that feeling with the eye of heaven, when the opponent price adjustment are clear!