ipvsrequests-cache

MIT 89 1 1,545

44.9 million (month) Aug 15 2012 2.0.1(2025-10-13 17:09:54 ago)

1,486 5 24 BSD-2-Clause

Feb 14 2011 23.9 million (month) 1.3.1(2026-03-04 18:05:49 ago)

The "ip" library is a Node.js library that provides utility functions for working with IP addresses. It provides functions for parsing, validating, and converting IP addresses between different formats.

The "ip" library provides a simple and easy-to-use interface for working with IP addresses in Node.js. It can be useful in a variety of contexts, such as when creating a network-related application or when working with IP addresses in a web application.

requests-cache is an extension to the popular requests package and it provides easy request/response caching.

This can be very useful in web scraper development as it'll speed up all requests. requests-cache can also be used for programs that integrate web scrapers as it's an easy caching layer for the most time consuming part of web scraping - http connections.

Some features:

Ease of use
Keep using the requests library you're already familiar with. Add caching with a drop-in replacement for requests.Session, or install globally to add transparent caching to all requests functions.
Performance
Get sub-millisecond response times for cached responses. When they expire, you still save time with conditional requests.
Persistence
Works with several storage backends including SQLite, Redis, MongoDB, and DynamoDB; or save responses as plain JSON files, YAML, and more
Expiration
Use Cache-Control and other standard HTTP headers, define your own expiration schedule, keep your cache clutter-free with backends that natively support TTL, or any combination of strategies
Customization
Works out of the box with zero config, but with a robust set of features for configuring and extending the library to suit your needs
Compatibility
Can be combined with other popular libraries based on requests

Example Use

```javascript const ip = require('ip'); // check IP validity: console.log(ip.isV4Format('192.168.1.1')); // true console.log(ip.isV4Format('2001:0db8:85a3:0000:0000:8a2e:0370:7334')); // false // check subnets console.log(ip.cidrSubnet('192.168.1.1/24')); // { networkAddress: '192.168.1.0', broadcastAddress: '192.168.1.255' } console.log(ip.not('255.255.255.255')); // '0.0.0.0' ```

```python import requests_cache # to use requests_cache just replace requests.Session with requests_cache.CachedSession session = requests_cache.CachedSession('demo_cache') for i in range(60): session.get('https://httpbin.org/delay/1') # or patch global requests requests_cache.install_cache('demo_cache') requests.get('https://httpbin.org/delay/1') # there are various configuration options: session = CachedSession( 'demo_cache', use_cache_dir=True, # Save files in the default user cache dir cache_control=True, # Use Cache-Control response headers for expiration, if available expire_after=timedelta(days=1), # Otherwise expire responses after one day allowable_codes=[200, 400], # Cache 400 responses as a solemn reminder of your failures allowable_methods=['GET', 'POST'], # Cache whatever HTTP methods you want ignored_parameters=['api_key'], # Don't match this request param, and redact if from the cache match_headers=['Accept-Language'], # Cache a different response per language stale_if_error=True, # In case of request errors, use stale cache data if possible ) ```