RemoteSettings is a framework that helps you to fetch remote data and to store them into a specific data structure.

Requirements

• iOS 8.0+
• Xcode 9.0+
• Swift 4.0+

Usage

Experimental: We also offer a Playground as documentation, check it out :). And make sure "Show Rendered Markdown" is active.

Let's assume we want to use the GitHub API to fetch information about the RemoteSettings project. More specific we want to store the url of the RemoteSettings repository for later usage.

let apiUrl = URL(string:"https://api.github.com/repos/tbointeractive/remotesettings")!

Basic

1. Create a subclass of RemoteSettings
2. Implement the method open func update(_ data: Data) throws and process the fetched data
   After you gained your designated information from the data, we recommend you to store that as instance member of that subclass
3. Create an object of the subclass SubclassOfRemoteSettings(remote: apiUrl)
4. Use that object to fetch data by calling public func update(finished: Completion?)

PseudoCode:

final class GitHubRemoteSettings: RemoteSettings {
  var repoUrl: URL?

  open override func update(_ data: Data) throws {
    self.repoUrl = // parse data (in this case this is some json), extract the repoUrl and store in member variable
  }
}

let remoteSettings = GitHubRemoteSettings(remote: apiUrl)
remoteSettings.update() { error in
  // error handling
}

// after an update your designated data is stored to repoUrl
remoteSettings.repoUrl

JSONRemoteSettings

JSONRemoteSettings is handy if you need to handle with JSON data, like we had to do in our previous section.

1. Create a subclass of JSONRemoteSettings
2. Implement the methods open func update(_ data: [AnyHashable: Any]) throws and open func update(_ data: [Any]) throws
   Those are the callbacks for your already parsed JSON data. Those methods are mutex exclusive, so either update(_ data: [AnyHashable: Any]) or update(_ data: [Any]) is called.
3. Create an object of the subclass SubclassOfJSONRemoteSettings(remote: apiUrl)
4. Use that object to fetch data by calling public func update(finished: Completion?)

Advanced Usage

Fallback Data

TBD 👩‍💻

DataFetcher

TBD 🙆

DataStorage

TBD 🙋