Crawler crawling app front-end: APP front-end data crawling program

Teach you to use proxy IP to pickpocket app data by hand

The old iron who has engaged in APP data collection knows that the biggest headache is the anti-climbing mechanism of the target platform. Casually catch a few times to be blocked IP, angry people want to drop the phone. At this time, we have to invite our savior---proxy IPThe first thing you need to do is to get your hands dirty. Today do not talk about false, directly on the dry goods to teach you how to use ipipgo home agent stable local gripping data.

Why is an app harder to work with than a web page?

APP is not like a webpage where you can directly F12 to see the request, you have to use a packet grabber tool (like Charles/Fiddler) to see the data interface. But even if you find the interface, if you start crawling directly:

1. single IP continuous request → 5 minutes must be blocked
2. request frequency is too high → direct blacklisting
3. equipment fingerprint detection → even the characteristics of the cell phone to give you a small notebook

This is where a proxy IP is needed toplay tricks on sb., making the server feel like a different person is operating on each request.

Four Steps to Real-World Configuration

Step 1: Choose the right type of agent
Don't be silly to use free proxy, slow speed not to mention, 8 out of 10 are bad. Directly on ipipgo's dynamic residential agent, their IP pool is updated every day more than 3 million, personally tested effective.

Step 2: The request header should be loaded
It's not enough to change the IP, you have to disguise the request header as a cell phone:

headers = {
    'User-Agent': 'Mozilla/5.0 (Linux; Android 9) AppleWebKit/537.36',
    'X-Requested-With': 'com.target.app'
}

Step 3: Agent Rotation Strategy
It is recommended to use random mode and change the IP for each request. just use ipipgo's API to call it directly:

import requests

def get_proxy(): {'http': f''}
    return {'http': f'http://user:pass@gateway.ipipgo.com:9020'}

response = requests.get(url, headers=headers, proxies=get_proxy(), timeout=10)

Step 4: Getting a little human
Don't swipe like a robot, add a random 2-5 second delay. Don't be a hard ass when it comes to CAPTCHA, use ipipgo's exclusive IP pool for a clean IP and try again.

Common Rollover Scene QA

Q: Proxy IP becomes slower when I use it?
A: Eighty percent of the IP is marked by the target site, hurry to ipipgo background to change the batch. Their IPs have health scores, and the nodes with scores higher than 90 are very stable.

Q: The captured data is always missing?
A: Check if the request parameters are fingerprinted with the device, especially the fields Android_ID and IMEI, using ipipgo's exclusive IP pool for mobile can reduce this problem.

Q: Will it conflict to have more than one crawler on at the same time?
A: Remember to assign different authorization credentials to each crawler process. ipipgo supports multiple sub-account management, don't put your eggs in one basket.

Why do you recommend ipipgo?

This is not a brainless blow, the actual test compared to the market seven or eight agent services:

1. the first mobile IP coverage (to engage in APP must use the cell phone base station IP)
2. automatic removal of blacklisted IP (real-time system cleaning waste IP)
3. support for billing according to the number of requests (small cost of trial and error does not hurt)

The bottom line is that their homeIP Survival CycleThan other parents, a high-quality IP can be used for 3-5 days without blocking, the degree of saving pull full.

Finally, we remind you that using a proxy is not a gold medal for free death. It is recommended to cooperate with request frequency control + device fingerprint camouflage for long-term stable collection. If you encounter a particularly difficult APP, you can go directly to ipipgo's customized solution, and a technical guy will teach you the techniques to bypass detection.