A lightweight local cache lib written in Swift.


DiskCache is lightweight caching libary intended to persist arbitrary data to disk.

📱 Requirements

Swift 5.5x toolchain with Swift Package Manager, iOS 13

🖥 Installation

📦 Swift Package Manager (recommended)

Add DiskCache to your Packages.swift file:

.package(url: "https://github.com/Mobelux/DiskCache.git", from: "2.0.0"),

⚙️ Usage

Intialize DiskCache with a StorageType:

let cache = try DiskCache(storageType: .temporary(nil))

There are three storage type options, which inherently define the root directory where the cache resides:

temporary - Stores data in the user's Cache directory. This directory is subject to the system's normal cache purging rules. Data stored here should be assumed to be ephemeral and could be purged by the system at any time. permanent - Stores data in the user's Documents directory. This will not be intentionally purged by the system and is safe to store long(er) term data. shared - Stores data in the app's shared container with the given appGroupID. This type is great for sharing data between app and extension or sibling apps.

Cache data:

let imageData = ...
try await cache.cache(imageData, key: "cool-image")

Get cached data:

var data = try await cache.data("cool-image")

Note: if data has not been cached with the given key, an error will be thrown. The code of this error will be NSFileReadNoSuchFileError

Delete cached data:

try await cache.delete("cool-image")

Delete all data:

try await cache.deleteAll()


DiskCache is release under MIT licensing.


  • Swift Tools 5.5.0
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Last updated: Tue Nov 08 2022 15:41:52 GMT-0500 (GMT-05:00)