Realtime Messaging

[MUSIC] 0:00 Hello, everyone. 0:04 My name is Michael Lustig and in this workshop we're going to create a realtime 0:06 messaging app using the Firebase Realtime Database. 0:09 If you're curious about what exactly Firebase is in depth and what other 0:13 features Firebase offers please check out the workshop linked in the teachers notes. 0:16 In this particular workshop, we're going to focus on using FireBase 0:22 in an Android application, rather than going over its entire feature set. 0:25 As I mentioned, we'll be creating a real time messaging application for Android. 0:29 In the app, you'll be able to create a username, 0:33 and then send messages to everyone else that has your app installed. 0:35 Since you'll be creating your own FireBase project, on the FireBase console. 0:40 You'll only see the messages from the people that you've shared your app with. 0:44 In other words, 0:48 you won't see the messages from everyone who goes through this workshop. 0:49 That would certainly be possible, but 0:52 we thought that might scale way out of hand too quickly. 0:55 When I'm learning, 0:59 I like to see what the finished product will look like before I get started. 1:00 That helps to give me a clear view on the end goal of what the lesson's 1:04 going to teach. 1:07 So let's go ahead and check out the app in action. 1:08 As you can see, when I first install the app I need to create a username. 1:12 In this workshop, we don't perform any logic for verifying usernames, but 1:15 try to pick something unique to you. 1:19 Firebase provides great user authentication but in this workshop, 1:21 we're going to stick with just learning about the real time database capabilities. 1:25 Stay tuned for workshops covering Firebase's other great features. 1:28 Once I've chosen the username, 1:33 I can log in where I'm taking the screen full of messages. 1:34 I'll bring up another emulator to show you how cool this truly is. 1:38 As well as my Firebase console open to the database page so 1:41 that you can see that all of this is truly happening in real time. 1:44 I've already logged in on this other emulator. 1:48 So once I send a message it should almost instantly appear in both the Firebase 1:50 console as well as on the list of messages on both emulators. 1:53 Let's go ahead and give that a try. 1:57 I'll type a message, Treehouse is super rad, and click the send button. 1:59 Viola, the messages appear on both the emulators and 2:08 our database flashes green I know that this app is fairly simple. 2:11 But every time I use Firebase, I'm amazed by how much complexity they've alleviated 2:16 by handling all of the issues that arise from an app with a real time requirement. 2:20 Now that you've got a better idea of exactly the project that you'll be 2:23 creating in the workshop. 2:26 I'm going to show you how to set up the starter files on your machine to 2:28 follow along. 2:30 While it isn't vital that you follow along, writing the code along with me will 2:32 be the best way to truly understand how everything works 2:35