Category Archives: Uncategorized

Network Requests and REST APIs in iOS with Swift: a protocol-oriented approach (URLSession, JSON parsing, Networking libraries, generics and architectural principles)

Calling REST APIs in iOS apps with Swift a protocol-oriented approach

Networking nowadays is a requirement for most modern iOS apps.

This often takes the form of interfacing with a remote web service that provides data for an app.

And this web service is often a REST API that returns data in the JSON format.

But writing network code in Swift is not a simple task.

Making asynchronous network calls to get data from a remote API requires the interaction of many complex parts in an iOS app.

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Books That Will Improve Your Career, Freelancing and Business making Swift Apps for iOS

The business of making Swift apps for iOS

When I started freelancing a few years ago, things did not go well at the beginning.

I started freelancing at a moment in which I was not happy with my employer and I was looking for another job. Back then a friend told me that there was a lot of work freelancing as an iOS developer.

That was what convinced me to make the sudden jump. But it turned out to be quite different.

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How to Persist Data in iOS Apps Using Property Lists and the Correct Architecture for Handling Persistent Storage

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Many iOS developers seem to go for very complex storage solutions when iOS offers very quick and easy ones that are much better for many tasks.

I myself made such mistake in the past. When the iOS SDK first came out I decided to make a little game for the iPhone. It was a little card game and as such it had to store the values for each card as well as information about the deck and cards the player collected. And I used the worst solution possible.

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Which storage technologies are available in iOS and which ones you should use

Books

Sometimes it is hard to know which technology to use in iOS for a specific task.

Storing data is indeed one of these cases. When I wrote my first app, a diet app for the Mac when the iPhone did not exist yet, I used Core Data to store its data (macOS and iOS share the same technologies and frameworks). Looking back, I think that was probably the right choice at the time, given the kind of data the app handled. But back then I had no idea and no way to tell. I picked Core Data just because I heard other developers talking about it and I didn’t know any other way. When it came to store static data in the app, though, I definitely made the wrong choice.
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