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Building a Weather Application From Scratch

Parsing the JSON Response

by Bart Jacobs | Jun 26, 2018 | Announcements

Swift 4 Xcode 9 iOS 11

Building a Weather Application From Scratch

1	Introduction
2	Setting Up the Project
3	View Controller Containment
4	Fetching Weather Data
5	Removing Object Literals
6	Creating a View Model
7	Parsing the JSON Response
8	Handling Errors and Notifying the User
9	Adding Flexibility With Protocols
10	Creating the Day and Week View Models
11	Creating the User Interface of the Day View Controller
12	Organizing Fonts and Colors
13	Implementing the Day View Model
14	Writing Unit Tests for the Day View Model
15	Implementing the Week View Model
16	Writing Unit Tests for the Week View Model

In the early days of Swift, working with JSON was clunky and inelegant. Most developers relied on third party libraries that simplified this tedious task. The Swift team was aware of this gap in the Swift standard library and, after focusing on the foundation of the language first, they introduced the Codable protocol in Swift 4. The Codable protocol is a powerful solution that makes working with JSON quick, easy, and intuitive.

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