Finch

A lightweight Xcode source extension that assists in transforming JSON into Codable Swift models. Finch will take care of everything. This includes creating a top level model, children models, and declaring the proper types and coding keys. Any unknown types will be generated as placeholder Any types.

Roadmap

• Support OSX 10.15
• Add customization settings in the desktop app
• Add option for custom encode/decode initializers
• Add Objective-C language option

Usage

Finch works with your clipboard to create the necessary models. All you need to do is copy some JSON, return to Xcode, and choose Editor > Finch > Convert JSON to Codables from the menu bar. A keyboard shortcut for this command can be set in Xcode Preferences > Key Bindings > Convert JSON to Codables

Example

JSON

[
  {
    "_id": "5973782bdb9a930533b05cb2",
    "balance": "$1,446.35",
    "age": 32,
    "name": "Logan Keller",
    "email": "logankeller@artiq.com",
    "phone": "+1 (952) 533-2258",
    "friends": [
      {
        "id": 0,
        "name": "Colon Salazar"
      },
      {
        "id": 1,
        "name": "French Mcneil"
      }
    ]
  }
]

Swift

public struct <#ModelName#>: Codable {
    public enum CodingKeys: String, CodingKey, CaseIterable {
        case id = "_id"
        case age
        case balance
        case email
        case friends
        case name
        case phone
    }

    public var id: String
    public var age: Double
    public var balance: String
    public var email: URL
    public var friends: [Friend]
    public var name: String
    public var phone: String

    public init(id: String, age: Double, balance: String, email: URL, friends: [Friend], name: String, phone: String) {
        self.id = id
        self.age = age
        self.balance = balance
        self.email = email
        self.friends = friends
        self.name = name
        self.phone = phone
    }
}


public struct Friend: Codable {
    public enum CodingKeys: String, CodingKey, CaseIterable {
        case id
        case name
    }

    public var id: Double
    public var name: String

    public init(id: Double, name: String) {
        self.id = id
        self.name = name
    }
}

License

Finch is, and always will be, MIT licensed. See LICENSE for details.