Network Example

This is sample code that utilizes REST API calls and JSON parsing. It mimics a social network design. It utilizes dummy data and API endpoints from JSON Placeholder

Notes

• This is for code purposes - the user interface is not optimized.
• Check fetch methods for endpoint names
• Coded in Swift 3.0 on XCode 8.1
• This is migrated from a private Bitbucket repo

Main View Controller

• This view controller is nested in a navigation controller.
• The main screen is a list of post titles and corresponding authors and usernames.
• On ViewDidLoad(), it first calls fetchUsers(). It serializes JSONSerialization and extracts data into a User object. It is chained to fetchPosts() methods. This is similarly parsed and data is extracted into a Post object. The tableview is then reloaded
• Each post includes a user ID
• For tableView(cellForRowAt indexPath:), it accesses the post at indexpath.row, and then crossreferences the User ID with the User Array to get User.name and User.username.
• For tableView(didSelectRowAt indexPath:), the postID is extracted, and passed to the DetailViewController through prepareForSegue() method. In addition, postTitle, postBody and user data is passed.

Detail View Controller

• On ViewDidLoad(), it calls fetchComments(), which extracts comments for the corresponding post in an endpoint. The JSON data is parsed, and extracted into a Comment object.
• Post body is displayed first, with title and username being at the top.
• There is a segmentedController that, when pressed, shows comments from the Comments array on the UITableView in this view controller.
• A user goes back by pressing the back arrow on top left