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Now, let me show you something very, very cool.



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We're going to insert some dummy data into our database and this dummy data is in the format of Jason.



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So if we head over to our real time database and yours won't look like this, yours will say, would



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you like to create a database?



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Go ahead and say yes.



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If if you want to do this section, you don't have to do this section.



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I'm just showing you that everything's working.



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Go ahead and click.



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Yes.



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And then allow access for 30 days.



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That just gets rid of the rules until we've actually developed something.



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OK, if you want to do this, you will have to create your own Jason data structure to do this.



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So I'm not actually going to give you the Jason for that.



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This is just a demonstration.



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So what I'm going to do here is import this, Jason, and before I do notice, there is nothing in our



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app.



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Right.



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But what I'm about to do is add a whole bunch of Jason.



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So here's my export, Jason.



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If I double click this and I hit import and when I do that, I'm going to quickly change to the app.



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There you go.



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So that proves that Firebase is listening.



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And when it gets that new data, it informs everyone that is making use of the data that it needs to



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do something now, which in our particular case was to display that particular data.



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So that's the real time demo.



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And just to recap the section, because it's quite a complex set up.



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First of all, you have to set up the firebase.



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Most importantly, you need to add an observer to that data base reference the child of messages looks



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like this.



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So we have all these objects in messages.



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Which are the individual messages with an ID that Firebase gives them automatically and of course,



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you can see date time and text in their messages is the child that's referenced inside of this observer.



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OK, so that's what we're listening to.



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We're not actually listening to the whole database, although you can do that if you wish.



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But I would advise that you don't.



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You split your app up.



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Logically speaking, once you've got that data, every time you get a new one, because we're looking



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at the child added, we're going to insert a row and scroll to that row, as well as append to our messages,



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data snapshot, because our table isn't listening to the live version of these messages.



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So we have to do this insert manually.



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Now, if you are on Android, you could tap into the room database, live observer, and that would



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do all of this automatically.



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So all you would need for Android is that line and potentially the scrolling line, depending on how



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you want it to behave, you wouldn't need to do any magic around inserting rows, OK?



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And then once we've got that, it's going to go ahead and insert the new row according to our cell phone



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app.



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So that is how we insert or rather how we listen to data from Firebase and how we insert adjacent file,



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if you so wish to do that.