Awesome

tl;dr

You love Swift's Codable protocol and use it everywhere, who doesn't! Here is an easy and very light way to store and retrieve -reasonable amount 😅- of Codable objects, in a couple lines of code!

New in v3.0

• Both UserDefaultsStore and SingleUserDefaultsStore are thread safe!
• BREAKING: Use of custom encoder/decoder has been removed.
• BREAKING: Snapshots have been removed.

Installation

Swift Package Manager

1. Add the following to your Package.swift file:

dependencies: [
    .package(url: "https://github.com/omaralbeik/UserDefaultsStore.git", from: "3.0.0")
]

2. Build your project:

$ swift build

Manually

Add the Sources folder to your Xcode project.

Usage

Let's say you have 2 structs; User and Laptop defined as bellow:

struct User: Codable {
    var id: Int
    var firstName: String
    var lastName: String
    var laptop: Laptop?
}

struct Laptop: Codable {
    var model: String
    var name: String
}

Here is how you store them in UserDefaultsStore:

1. Conform to the Identifiable protocol and set the id property

The Identifiable protocol lets UserDefaultsStore knows what is the unique id for each object.

struct User: Codable, Identifiable {
    ...
}

struct Laptop: Codable, Identifiable {
    var id: String { model }
    ...
}

2. Create UserDefaults Stores

let usersStore = UserDefaultsStore<User>(uniqueIdentifier: "users")
let laptopsStore = UserDefaultsStore<Laptop>(uniqueIdentifier: "laptops")

3. Voilà, you're all set!

let macbook = Laptop(model: "A1278", name: "MacBook Pro")
let john = User(id: 1, firstName: "John", lastName: "Appleseed", laptop: macbook)

// Save an object to a store
try! usersStore.save(john)

// Save an array of objects to a store
try! usersStore.save([jane, steve, jessica])

// Get an object from store
let user = store.object(withId: 1)
let laptop = store.object(withId: "A1278")

// Get all objects in a store
let laptops = laptopsStore.allObjects()

// Check if store has an object
print(usersStore.hasObject(withId: 10)) // false

// Iterate over all objects in a store
laptopsStore.forEach { laptop in
    print(laptop.name)
}

// Delete an object from a store
usersStore.delete(withId: 1)

// Delete all objects in a store
laptops.deleteAll()

// Know how many objects are stored in a store
let usersCount = usersStore.objectsCount

Looking to store a single item only?

Use SingleUserDefaultsStore, it enables storing and retrieving a single value of Int, Double, String, or any Codable type.

Requirements

• iOS 13.0+ / macOS 10.15+ / tvOS 13.0+ / watchOS 6.0+
• Swift 5.0+

Thanks

Special thanks to:

• Paul Hudson for his article on how to use Swift keypaths to write more natural code.
• Batuhan Saka for helping with translation into Turkish

Credits

Icon made by freepik from flaticon.com.

License

UserDefaultsStore is released under the MIT license. See LICENSE for more information.