12/30/2023 0 Comments Swift parse json array![]() Along with that information is an image you can display that shows how each cat breed looks.īut once you get that information, how do you put it on your app’s screen? This tutorial will also show you how to parse JSON data into model classes that you can display in your app. You’ll get a list of cat breeds along with information about each breed. In this tutorial, you’ll sign up for a website that provides information about cats, and you’ll build a Flutter app to display that information (for you dog lovers out there, there are dog APIs as well). Many sites allow you to create an account to access resources like images, data and more through REST APIs. There are thousands of websites that provide information you can use to spice up your apps through REST, or Representational State Transfer, APIs, which define a way to implement web services. The only requirement Codable has is that all the properties inside the struct also conform to Codable – in our case that’s a string and an integer, so we’re all set.An app without something to show on its screen is pretty boring, right? But where can you get interesting information to display on your app? From the internet, of course! We need to make a matching Swift struct that can hold those fields. That stores two people in an array, each with a name and an age. ![]() Here’s some example JSON we can work with: let jsonString = """ Swift’s Codable protocol makes it easy to convert JSON to native Swift structs and classes – just design data types that hold the same keys and values as your JSON, then use JSONDecoder to convert. How to convert JSON into Swift objects using Codable
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