Swift API Calls for Beginners (Networking) - Async Await & JSON

[@seanallen]

Want to dive deeper into iOS development? Check out my iOS Dev courses (UIKit & SwiftUI) at seanallen.teachable.com

[@abdulrb786]

Really informative. If possible could you create a playlist for different type of network calls that you have encountered example of which are, dependent n/w call, paginations etc. And best ways to call them, such as using dispatch group etc. that would really help the Developer across globe as all the developer do make n/w all the time.

[@FriendlyNeighborhoodBlindKiid]

Is there any way that you can share a link to that file, especially because it's just a single file? I'm blind so I can't follow along with the video super well. I love how you explain the concepts, but there's a couple things with the symbols and stuff that I want to get my computer to read.

[@parkerrex]

Coming from web world. Finally found a good creator for swift. Time to binge….

[@seanallen]

Welcome 👋. Hope you enjoy!

[@pattmehta5835]

bot 😂

[@joeyeasterling149]

@@pattmehta5835found the bot

[@manwithllama]

9:45 Sean! I love that you talk about being confused [as a beginner] by things being all over the place in different directories/files. That happens for me too. This type of "compassion" is rare. So many teachers just assume, and don't have the ability-or don't care to-reach back into the past and remember what it was like to start out. Keep doing this. It sets you apart as a teacher. A professional writer friend of mine-who used to have an excellent podcast-said this all the time: "You're not alone." He peppered it in his writing. And often started articles that way. It was his go-to. Why is this so important? Because ultimately people feel alone. [Most won't admit it.] We want to belong. To know *you* struggled at one point just like I am today? That makes me included. Like i'm not just some idiot that will never get this. It's empowering: "I got this." Thanks again. Love learning from you (and @twostraws).

[@SHOLINGER]

bro your twitter handle ? and that comment was very nice of you !

[@iLoveAppl3947]

yeah i have watched 20+ videos about this topic and yet this is the only video that worked for me. Thanks bud

[@seanallen]

I was the same way when I tried learning network calls. It's a tough topic. Happy to hear my video resonated with ya!

[@meunomeecriss]

Duuuuude, you make it so simple. I am scared bc you told in the beginning of the video that it is NOT EASY AT ALL. Thanks for this explanation.

[@thanasisathanasi4965]

I am mostly a web developer using Javascript, PHP, MySQL and Apache server and I developed my own framework using these tools. I have decided to expand my framework to handshake with Swift and Kotlin ecosystems so I can develop apps that communicate with my other framwork! This video was my starting point. !! Thanks

[@jaylensmith6308]

I’m moving away from completion-type networks calls and I am happy that this video is out

[@seanallen]

Happy to help with this transition.

[@GouravSinghalMusiTech]

You should keep making videos... it should be a request from whole iOS community! Kudos to you!

[@ArthasFede]

Simple, quick and streigth to the point. Love this tutorial!! Thanks Sean! 🙏🏻

[@seanallen]

Glad you liked it!

[@mingy7017]

Thank you SO MUCH Sean this goes straight to the point and very informative and easy to follow the logic behind. Very very well conveyed! ❤

[@seanallen]

Thanks Ming! Glad you liked it.

[@AlexZolotov-h3j]

Nice! Very detailed explanation. I am a seasoned software engineer just getting my hands dirty with Swift, and all of these concepts make a lot of sense to me. Thanks.

[@seanallen]

Glad it was helpful!

[@TheNicolas721]

man you are just the goat of swift tutorials, I've learned a lot from you, thanks a lot!!

[@seanallen]

I appreciate that! Glad you like it.

[@tharindudarshana6480]

Thank you ! I'm learning swift as an experienced Spring/Java developer and your tutorials help me to grab the fundaments of Swift with actual functionality which is interesting to follow. Simply great & please keep up posting

[@seanallen]

Glad you like them!

[@mario_luis_dev]

I’m on the same boat as you! Spring -> Swift. Really digging everything about Swift development so far, I only wish I had jumped into this sooner!

[@cheeesecake6989]

Thanks so much. It is true - for a beginner having all the code in one place makes it easier to understand.

[@sebasy10]

Im taking the course of angela, basics of swift. And i look up for your videos to have a certain idea of what im going to see so im not fully lost haha. Thanks for sharing your knowledge

[@seanallen]

Happy to help!

[@davidcbeaudoin]

I've been doing Apps with network requests for a while, but I haven't messed around with using async await yet. This lesson will be really useful for trying to apply it in a new App I'm building. Thank you for a clear explanation as always!

[@seanallen]

Glad you liked it, David!

[@rodrigorgpsk8]

What an amazing video! With that I did make a small app with navigation views to check bio and followers in order to get more expertises about async api calls and screen navigations! Thanks Sean! Keep doing these awesome videos! 😎

[@bleulejour]

Best tutorial ever for Networking and API calls in Swift UI!

[@rmessentials4048]

This is a nice and inspiring tutorial. Thanks for the video SeanAllen I will definitely watch it again.

[@seanallen]

Glad it was helpful!

Thank you so much. I didn't know that we can also use async await keywords on Swift and on networking. I was doing my all networking codes with dataTask. It gave me a new perspective. Also It's nice to see Paul here too.

[@seanallen]

Happy to show you something new!

[@billblair3155]

Good stuff Sean. Thanks much! One of the best presentations I've seen. And I've seen a lot. Thx again.

[@seanallen]

Glad it was helpful!

[@WestCoastAce27]

Great job. So much easier than the Obj-C. If you haven’t, since you brought it up, you might do a pros/cons video on multiple files. I’m sure there are going to be many opinions on ‘how big is too big’ for 1 file.

[@ash_9651]

sean thank you soooo much, this cleared up a lot for me. i love how you progessivly recap the code it really helps me understand!

[@seanallen]

Glad it helped!

[@MassonLifestyle]

Great video. I suspect I will be saving this and watching it a couple of times. Thanks!

[@seanallen]

Glad it was helpful!

[@ДенисАвраменко-з9ю]

Hello from Ukraine. Nice stuff! Thanks a lot for sharing your knowledge and wisdom! Keep it going! You are great!

[@seanallen]

Glad you enjoyed it!

[@KalDillard]

Thank you! I started out learning iOS until I went to Flutter! I’m looking to learn more Native iOS and you made this easy for me. This is pretty similar to making network calls in Flutter.

[@dineshdas9983]

What a video🤩 , Im very much happy to watch this video, 25 minutes goes like a minute great tutor i ever had

[@seanallen]

Glad you enjoyed it!

[@ouadiae2706]

i was looking for something like this for ages, thank you

[@seanallen]

Happy to help!

[@mranjithamranjitha6724]

Ur notes&teaching is very clearly... thank u

[@NathanBudd]

This is a very well explained video. Do you have one that includes auth and how to save tokens using SwiftUI? Either in a video, or one of your courses?

[@seanallen]

Thanks. Glad you liked it! I don't have a video or course that covers saving tokens, unfortunately.

[@patgoo2]

Very good training video and an important training video to watch. I like how you demonstrate network calls and syncing the API data, coding the JSON, and creating a starter page all on one Xcode file. This makes it much easier to follow.

[@seanallen]

Glad it was helpful, Pat!

[@AngleIron426]

I coded along and it worked beautifully! Learned a lot. Wonderful introduction to async and URL session. Thank you!

[@edwardhasted3849]

Many thanks for tackling the real world example that is the most likely bottle neck for Async Await in a workable entirety.

[@seanallen]

Happy to help!

[@samr.4692]

Great video. Covered multiple subtle but important topics. Thank you.

[@seanallen]

Glad it was helpful!

[@SB-jq4jc]

You explained this so well! Thank you for this!

[@seanallen]

Glad it was helpful!

[@saeedebrahimpour-uz4uf]

you are a really really good teacher,keep going man ,love you from iran😍

[@СергейБезногов-т6у]

It's the best video about network calls !!!

[@seanallen]

Glad you liked it!

[@justmytraining4190]

hi! my English is so bad, but your videos i can understand very easy. Thank you!

[@seanallen]

Happy to hear that!

[@antoniovuono4521]

The best tutorial i already see ! very usefull, thanks dude !

[@CostyaT]

My first time watching your videos with 29 comments. Thanks for new video 😅.

[@seanallen]

Thanks for watching :)

[@FranciscoHernandez-ij3kd]

Thank you Sean, I appreciate your work.

[@seanallen]

My pleasure!

[@mr.sergio8773]

Thank you for the video. I would like to know more about Network Calls. How to work with an array of users?

[@Moch117]

Hey Sean, where do you make the API calls ? It seems like a lot of tutorials online show it in the view model but others say to make the call in the Model layer.. This is for MVVM architecture

[@kal5211]

Excellent tutorial! Thanks Sean.

[@seanallen]

Glad it was helpful!

[@Internet.Surfer.No.1]

Thanks for great video. would be nice if you also make a video for real world use-case, basically the next step of this, where we are doing it more declarative, using ObservableObject. thanks

[@wilsonwu5663]

hi, wondering which terminal should I use to get the Githubuser data? the terminal on Mac or somewhere else from Github? thanks,

[@alinusari2033]

Thanks so much. It worked, but How can I edited for an array json data?

[@omerklbkr]

I was waiting for the second API call with Array json. Do u gonna make it ?

[@ivanmatkovic]

Excellent content. Truth be told, I'm not a huge fan of excessive do { } catch blocks as they tend to make me anxious for some reason 😅. I usually lean towards using closures or creating wrappers around do/catch, maybe it's just a force of habit. However, each new release of Swift & SwiftUI seems to be improving tremendously. I'm optimistic that they'll soon address the navigation issues - I'm aware of NavigationStack, but sadly it's only compatible with iOS16+ and I haven't had the chance to try it out yet. A minor suggestion for this kind of videos would be to include a gist with a code in the description.

[@muhammednadeemma3553]

Hi Sean, Out of subject can we create an xcframework with third-party dependencies like Alamofire, lottie-ios etc..

[@moku7787]

hi i want to ask something, i already have APIService, model data and already call API like image, text to UI but i need to call link from API with hyperlink text. like example a text (Read more) clickable but the link from API, how to call it?

[@ccstreams7706]

i get so many errors in swift since it works so differantly from other programming languages. what is the best method to debug? for example when a FOREACH accepts arrays and i where to print that 0..

[@hustlerking4295]

Thank you! Thank you! Thank you! Very helpful video! Much wanted!

[@khaled-kl2dc]

Can you help me with something that may be easy for you but difficult for me? I have been unable to solve this problem, which is, in short, I created my game project on Unity, then built the application on apk, it works without problems, then built it on ios, but when running the application on testflight or xcode, the application does not reach the server, and we are using (AWS), and this error appears in the run log: Networking process (0x138004a10) took 1.482501 seconds to launch. Do you know a solution to the problem or have you made an explanation about it?

[@andreim7808]

Hi Sean! What are your thoughts on iOS development vs QA automation? Any ideas what the future holds for iOS developers for 2024 job market is US considering all the recent massive layoffs in the big tech? Trying to make a decision here, as I think QA market is over saturated at this point... Thanks!

[@JRHague]

I would like to see how people typically handle tests with network calls. Would there be test to see if the api your calling has changed and would you make a dummy service that mimics the api for your own tests?

[@TheWealthyIdiots]

Great video! How would you handle passing request states like “loading” back to the UI? This variable will change a couple of times during the process so you couldn’t just pass it back as a return from your request, so just curious how you would handle it.

[@TheWealthyIdiots]

I guess you could just add it before and after the await call 🤔. That would work I think.

[@seanallen]

Yeah, that's how it's typically handled. I usually use something like an "isLoading" boolean that gets flipped to true right before the API call, and then flipped back to false when the API call returns.

[@TheWealthyIdiots]

@@seanallen I ended up doing this and adding a activity progress view to my button. It came out great! Thank you!

[@Olden2610]

Hey Sean, great video as always! As an experienced developer wanna ask you - do you think it's okay to use classic Result in closure way of network request instead of async/await in new UIKit based apps? I tried to use async/aways and it didn't feel much better, still need to wrap this code in Task, call it with and expect response asynchronously. What do you think? Due to i currently making new app from scratch, and still feeling unease cause i use UIKit :D And not using async/await is making me feel like those ObjC devs i was looking at when i started iOS 5 years ago

[@seanallen]

My opinion is that it's perfectly fine to use the classic closure based way of doing network calls. Async/Await has its benefits and is more "modern". But at the end of the day... as long as your code works and the codebase is easy to read and work in.. you're all good as far as I'm concerned.

[@absar66]

Great refresher..Thanks Allen

[@seanallen]

Happy to help.

[@ssaai]

please make video about access and refresh token, Where to save in the iOS, how to call the api

[@crackedpistachio6001]

You are a legend man

[@seanallen]

Haha, happy to help :)

[@umairnazim3565]

Amazing explanation

[@seanallen]

Glad you liked it

[@alexsalinas2733]

Amazing content, was able to follow along and replicate the code. Would greatly appreciate it if there is a follow up video regarding oauth API calls to fetch and refresh access token, thanks again for the great content.

[@Bobin13]

OG video, Thanks for the help.

[@seanallen]

No problem!

[@taylorenglish6237]

Thank you for the clear video!!

[@seanallen]

Happy to help!

[@thomasfrank8379]

Do you know how to get the redirect url when getting status code 301? I need to add query items to the new url. Thanks :)

[@mkb18577]

I tried to recreate this exactly as done in the video to test myself. I can only get it to show the placeholders. It won't pull up any user info? Any ideas why?

[@marinab.6647]

omg this worked!!! thank you!

[@seanallen]

You're welcome!

[@killua3939]

Been unemployed for 2 months and been actively looking for Swift / React native jobs but the demand is so small this year because of the no-to-low code app builders. its really frustrating pursuing ios beyond.

[@nexj4904]

What is the best way to handle null responses from the server? my bio was null and it failed to parse the data.

[@ericka.montanez6821]

Fantastic explanation.

[@fattoofittoo7907]

how to fix "Function declares an opaque return type, but has no return statements in its body from which to infer an underlying type" i create exactly like video but got this one error, already google it cant really found the solution.

[@DivyanshArya-bc2dx]

As an flutter developer swift is amazing

[@vazzhh]

its ok. I understand. but i try to use a JSON from Woocommerce. ( products, price, description ) but not working. i dont know whats the problem

[@eldarkulic4834]

maybe it's what he mentioned on the start (auth)? did you solved your problem?

[@jkeee]

Thank you man, you are the bestest

[@DavidShaw-dc4re]

It fails for me and I get invalid data error code., but a return of 1385 bytes My raw data has twostraws's data response, i can read clearly but my code fails EDIT: The problem was my struct GitHubUser had avatar_url rather than avatarUrl

[@4bctrujillog1112]

Hi! I really like your videos! You are my iOS university so thanks. Could you make a video about the same thing but using Alamofire? Thank you.

[@seanallen]

Glad you like my content! I haven't used Alamofire since 2016. Unfortunately, I'm not familiar with it anymore.

[@4bctrujillog1112]

@@seanallen don’t worry Sean! Thank you so much for responding to me. Never stop please, I’m from Spain but you are literally the best teacher.

[@cylenunemaker2444]

fantastic video

[@seanallen]

Thank you! 😃

[@TDC-BK]

My guy 💪🏿

[@LazarofShalev]

thank you sean!

[@AvantjerTube]

Thanks, Sean 🙏

[@seanallen]

No problem, Jerry.

[@AvantjerTube]

FYI... When I tried using my own account url, ending in "avantjer", the app was showing only placeholders for all three fields (but no errors). I discovered that I had no "bio" on GitHub. ("bio": null) Once I added a bio to my GitHub account, everything worked fine. Interesting that I wasn't at least shown my login, and avatar, even though I had no bio. Maybe Codable "silently" failed because "bio" was null?

[@AvantjerTube]

The code can be updated to handle cases in which the user has no bio. Just make "bio" an optional struct GitHubUser: Codable { let login: String let avatarUrl: String let bio: String? }

[@AbdeliOS]

This is a gold one!

[@seanallen]

Glad you enjoyed it, Abdel!

[@BeyzilMusics]

My brain hurts, thanks for the video!

[@seanallen]

You're welcome

[@DarylMarcano]

how can i use this for an array of users?

[@airysm]

Could async await be used with uikit too?

[@joshuascorca550]

Hi Sean, Thanks for the video! Question: Why don't you need to wrap this line in a "do catch" ? let (data, response) = try await URLSession.shared.data(from:url)

[@filipecanzi]

Thanks Sean!!

[@MegaOlzo]

Thank you!

[@seanallen]

You bet!

[@hamzahimi1681]

is there any difference between doing in swift ui or core swift

[@seanallen]

SwiftUI is a user interface framework. Swift is a programming language.

[@vanylaskywalker]

How would you persist the downloaded JSON data using SwiftData?

[@seanallen]

I haven't worked with SwiftData yet, but this is a larger topic that would require another video. Can't be answered in a comment.

[@bosch5053]

Helpful!

[@АлишерРизабаев-ш8ж]

The best of the best .....:)

[@seanallen]

Thanks for the kind words :)

[@mirzausama7458]

Great sir please make more video on api using uikit

[@victorriurean]

🔥

[@danyjamous5986]

Does someone know why is try not in a docatch block at : 12:09

[@gjermundification]

Maybe I'll start playing with async await now.

[@seanallen]

Let me know what you think!

[@ChrisAyeko]

cool video)

[@seanallen]

Glad you liked it!

[@shippoboston7974]

Literally I watch your videos the past week and realized I wasn't subscribed. Shame on me!

[@soheilpakgohar6630]

awesome

[@seanallen]

Glad it was helpful!