Book Image

Firebase Cookbook

By : Houssem Yahiaoui
Book Image

Firebase Cookbook

By: Houssem Yahiaoui

Overview of this book

Do you feel tired just thinking or even hearing about backend technologies, authentication or the tedious task of deployment? Firebase is here to change the way you develop and make your app a first-class citizen of the cloud. This books takes a solution based approach by providing you recipes that would help you understand the features of Firebase and implement them in your existing web or mobile applications. We start-off by creating our first Firebase application and integrating its services into different platforms and environments for mobile as well as web applications. Then we deep dive into Real-time Database and Firebase Storage that allows your users to access data across various devices with realtive ease. With each chapter you will gradually create the building blocks of your application from securing your data with Firebase Rules to authenticating your users with O-Auth. Moving along we would explore modern application development techniques such as creating serverless applications with Firebase Cloud Functions or turning your traditional applications into progressive apps with Service workers. Finally you will learn how to create cross-platform mobile apps, integrate Firebase in native platforms, and learn how to monetize your mobile applications using Admob for Android and iOS.
Table of Contents (15 chapters)
Firebase Cloud FireStore

Implementing file metadata updates

So typically, any kind of file--or folder for that matter--has what we call metadata. That vital information is present to help recognize the nature of the file and its type. It's what we normally refer to for adding MIME types, and files in the Firebase Storage bucket are no exception. Within the platform, the possibilities present are let us retrieve and also update the file's metadata, and in this recipe, we're going to see how we can do just that.

How to do it...

  1. Let's start first with retrieving metadata. To allow us to do so, the Firebase APIs provide us with a function called getMetadata(). This function will allow for the retrieving of all file metadata in one...