Python processing JSON data: Python proxy JSON processing

Python processing JSON data tutorial ha: when the proxy IP meets the data parsing

Brothers engaged in data capture understand, JSON this thing is now full of streets. Today let's talk about something real - how to use Python to play with JSON data, coupled with theipipgo Proxy IPThis artifact is guaranteed to keep your crawlers alive and well.

First, JSON basic no nonsense

JSON looks like a dictionary in Python, let's say this structure:

{
  "ip": "203.0.113.1",
  "port": 8080,
  "protocol": "socks5"
}

Handling thieves is simple with Python:

import json

 Convert json string to dictionary
proxy_data = json.loads('{"ip": "203.0.113.1", "port":8080}')
print(proxy_data['ip']) output 203.0.113.1

 Dictionary to json string
new_data = {"status": "active"}
print(json.dumps(new_data)) output {"status": "active"}

Second, the real-world scenarios of proxy IP

When we use ipipgo to extract proxies, what the API returns is actually JSON data. Take a real case:

 Get ipipgo's proxy IP pool
import requests

resp = requests.get("https://api.ipipgo.com/get_proxy?type=socks5")
proxy_list = json.loads(resp.text) Here we get an array of proxy IPs

 Randomly select an IP to use
import random
selected = random.choice(proxy_list)
print(f "Using {selected['ip']}:{selected['port']}")

watch carefullyProtocol typeTo match the business, let's say HTTP is used for web crawlers, and socks5 may be more appropriate for gaming business.

III. Guide to avoiding pitfalls

Three common mistakes newbies make:

1. Failure to deal with unusual structures (e.g., a missing field)
2. Forget to check the validity of the IP (get the proxy IP and ping it first)
3. Wrong type of package (dynamic and static IPs are not used in the same way).

Correct operating position:

try.
    active = proxy_data['expire_time']
except KeyError.
    print("This IP may be expired, change it.")

 ipipgo's IP validity checking interface
check_url = "https://api.ipipgo.com/check?ip=203.0.113.1"

Fourth, the package selection doorway more

Pick based on business needs:

- Dynamic residential (standard): $7.67/GB/month - suitable for data collection
- Dynamic Residential (Enterprise): $9.47/GB/month - need high concurrency choose this one
- Static Residential: $35/IP/Month - Long Term Fixed Business Use

V. Question-and-answer session

Q: Why do I need to use proxy IP to process JSON?
A: For example, when dealing with interface data from multiple platforms at the same time, different platforms have restrictions on the frequency of access, using ipipgo's IP pool to rotate the access will not be banned

Q: What should I do if my proxy IP suddenly fails?
A: ipipgo's API returns a timestamp with an expiration date, so it is recommended to add a timed refresh mechanism in the code.

Q: What makes ipipgo better than others?
A: To cite a chestnut, their TK line is a unique secret, do cross-border e-commerce friends used to say stable. Then again a real, last week I have a project need Cambodia IP, other families simply can not get, ipipgo two hours to arrange on!

As a final note, remember to do a good job when processing JSON data.exception captureProxy IP is not a panacea, but it is a must-have. Use ipipgo's customized service, encounter special needs directly to their technical small brother, than their own blind toss much stronger.