MemoryJar
MemoryJar is a fast and efficient and thread-safe persistent string caching library that includes capacity management (LRU) and support for age expiration. It utilizes both in-memory and disk storage, supporting asynchronous writes for speed. This library was inspired by the caching mechanism on the Parse iOS SDK.
This caching library is most useful when building a caching system for managing a REST API.
Installation
To install it, simply add the following line to your Podfile:
pod "MemoryJar"Usage
import MemoryJar
// use shared, or create your own with MemoryJar()
let cache = MemoryJar.shared
// Simple
cache["company"] = "Modernistik"
// retrieve (no expiration)
let company = cache["company"]
// Some API response
let json = """
{
"name" : "Anthony Persaud",
"id" : 7,
"company" : {
"name" : "Modernistik",
"location": "San Diego, CA"
}
}
"""
let cacheKey = "https://some.api/?id=7"
// set the value
cache.set(value: json, forKey: cacheKey)
// fetch value only if it is not older than 1 day.
if let result = cache.get(forKey: cacheKey, maxAge: 86400) {
print(result)
}
// deletes all cache objects
cache.removeAllObjects()Todo
- Support clearing specific url paths matching a pattern.
Author
Anthony Persaud, https://www.modernistik.com
License
MemoryJar is available under the MIT license. See the LICENSE file for more info.