iOS Swift Tutorial: Working with the Web: HTTP, URL, and REST API

In this Swift API tutorial, you will learn the basics of working with the web. I will give an introduction to HTTP and URLs. I am using a REST API do fetch data about cat breads and cute cat images. You will see how to use URL session in Swift to get JSON files and images.
This is a very important topic, especially if you are planning to land a job as an iOS developer soon. Using a API in a take home project is a very common task.

Overview
00:00 introduction
07:15 HTTP
14:38 Request
19:09 URLSession and JSON
30:05 fetching images
36:39 response and status code

Resources:

🤩 Learn more

Books:
Develop in Swift Data Collections, Chapter 2.4

⬇️ Source Code:

If you liked what you learned and you want to see more, check out one of my courses!
👩🏻‍💻 Combine course

#Swift #Networking #URLSession #HTTP #URL #FetchData #REST #API

[kazzerlea]

You are very good at explaining things. I do hope you will not quit making videos.

[MauricioChavesDias]

[That's a comment for the channel and not only for this video]
Thanks for the video, Karin. I loved the cat at the end. Also, I really like the way you structure your code, as a beginner I always find it confusing when I see influencers coding everything in a single file, I reckon that's why it took me so long to understand MVVM. You are kind of breaking these paradigms for me, thanks!

One more thing, as a beginner, I would like to know more about a few keywords you use in your code, for e.g the [unowed self] in a closure. I know I can look it up, but it makes it a lot easier if you explain complex clauses to newbies like me while you are coding.

I can't wait to marathon all of your videos to understand Combine deeper. One day I want to be as good as you are in Swift <3.

[bgriffin]

The cat API is so much better than the dog Api. Cat owners ftw

[marceljaeger]

There can't be enough "cat".🤩😂

[ayushthummar]

Amazing karin, I am new to networking and was unable to understand it, you made it very is easy for me Thanks💜

[VlasiosSokorelosTheDarkwavist]

Thank you for the video, you were very helpful !

[lincolndickerson]

Hi Karin, thanks again for all the great material. I am curious about two things. 1) will you be cover using rest and json parsing with combine? 2) Will you be covering best practices for syncing web data with CoreData?

[aengmuhidin]

Please.... tell me how to upload multiple file and view thumbnails....

[bocetta]

can you help me please? I can parse JSON file for my appli, but one of my keys "content" contains String with HTML attribute... I need extract URL contains in the string HTML... I can do that?

[harshyadav]

how to fetch image and show/display in swiftui's Display
Anyone please help

[kevinsouza]

você não faz ideia do quanto me ajudou! se eu te visse na minha frente te dava um beijo na boca!!!