Firebase Quickstart

I have implemented migration of Google Firebase Quickstart examples to Swift 4.2 for iOS at GitHub

Google Firebase provides a range of Quickstart examples for integrating Firebase services into iOS applications using Swift. These examples demonstrate how to leverage Firebase's powerful features, such as authentication, real-time database, Firestore, cloud messaging, and storage, in your iOS apps. Let's break this down:

Firebase's Quickstart samples for iOS serve as a starting point for developers to explore and implement Firebase functionality. Written in Swift, these examples illustrate how to set up and use various Firebase services effectively in native iOS apps. They include step-by-step guides, sample code, and configuration instructions tailored to the iOS environment.

https://github.com/firebase/quickstart-ios/pull/590