September 2018
Intermediate to advanced
386 pages
11h 17m
English
Content preview from Hands-On Serverless Applications with Kotlin
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Rxify the API call
Reactive programming has already become very popular among developers. In most android apps, RxJava/Android is used in obvious ways. API calls are one of those use cases. We have attempted to make an API call using RxJava. With Kotlin, you will hardly see any verbosity and the code is so readable.
You might be wondering how the magic is happening here. Lambda functions are the answer. All those curly brackets you see here are lambda functions. I have highlighted them in bold:
override fun getPolls() { RetrofitAPIClient.getClient().create(PollService::class.java) .getPolls() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .doOnSubscribe { view.showLoader() } .doFinally { view.hideLoader() } .subscribe( ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.