Parsing JSON Just Became Super Easy in Swift 4 with Decodable

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Күн бұрын

Transforming JSON into model objects in your apps just became a whole lot easier with the introduction of Decodable in Swift 4. In today's lesson, I want to walk through the old way of using JSONSerialization and then show you the new JSONDecoder method. We can retire a bunch of JSON serializer pods now that we have this feature natively supported.
URLs for JSON blobs:
api.letsbuildthatapp.com/json...
api.letsbuildthatapp.com/json...
api.letsbuildthatapp.com/json...
api.letsbuildthatapp.com/json...
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www.letsbuildthatapp.com/cour...
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Пікірлер: 589

@MattMiller44 7 жыл бұрын

In the video you go print(websiteDescription.name, websiteDescription.description) But if you also wanted to print the first course how would you go about doing that?

@LetsBuildThatApp 7 жыл бұрын

You can use websiteDescription.courses.first. We go through a lot about model objects and arrays in the Instagram course if you're interested in learning how this all work in iOS and Swift: www.letsbuildthatapp.com/course/instagram-firebase

@MattMiller44 7 жыл бұрын

Ahh thank you. And then if you just wanted to print out the names of each of the courses you'd need to make a loop?

@LetsBuildThatApp 7 жыл бұрын

Yeah you'd just use some kind of for loop or forEach on the array. We do something very similar with the Posts objects in the course.

@MattMiller44 7 жыл бұрын

I shall check it out now :)

@chimansong8653 6 жыл бұрын

Like this, right? let courses = try JSONDecoder().decode([Course].self, from: data) print(courses.count) for jsonData in courses { print(jsonData.name!) }

@johnwatts8239 6 жыл бұрын

Great tutorial. Nice voice and cadence. I love how you started with clearly explaining an easy example and then moved to more complex versions. Hitting subscribe was an easy choice. Thank you!

@bigmtnstudio 6 жыл бұрын

Great video, Brian! I like how you taught it from the simplest scenario to more and more complex. This helped me out with my next story card at work. 😃

@SMART5486 5 жыл бұрын

Great to see you Mark :) I follow both of you with pleasure.

@awabaly5982 5 жыл бұрын

good to see you here mark I wish someone of you guys talk about App lifecycle and view lifecycle

@JustVictor72 7 жыл бұрын

Better late than never....happy fourthComing! This video is so awesome, great timing as always and no more depending on swiftyJson, Tron or Json code. Swift 4.0 is definitely the future proof way! Thanks Brian 👍🏻

@aidanlok 6 жыл бұрын

Thank you so much for this tutorial, I have looked all over the place for something that explains how to grab data from a JSON file that actually works and this the best thing I found. Thank you so much for creating this. 👍

@benyaminaghaebrahimi5073 6 жыл бұрын

Thanks Brian! It has been a long time I was looking web to find a good tutorial about parsing JSON in Swift and here it comes the most simple way to do so! Cheers Man

@Kilo_Loco 7 жыл бұрын

This is so beautiful that it makes me want to cry! 😂 Just a suggestion but you may want to do the JSONEncoder to compliment this video 😉 I will eventually do my own little tut on these videos as well. Just trying to be like you. Keep up the great work 👍🏽

@user-kr6sw5qg7k 5 жыл бұрын

Thanks man, you saved my life! I was going through dozens of shitty examples how to parse json, but it's brilliant

@tymondragon886 5 жыл бұрын

I'm new to Swift and have spent hours trying to parse an array of object in JSON. Thank you sooooooo much!

@TazmanStarcraft 6 жыл бұрын

Thank you so much for explaining how to handle different types of JSON parses! Your video helped me solve two issues I came across. Helped me a lot. Very well spoken too!

@ahmadmustafa5570 5 жыл бұрын

Dear Brian, I watch this video many times thanks a lot this help me to build my project

@John-vb5or 6 жыл бұрын

Aaaaaaand this was just what I needed to parse the response from an HTTP GET request. Thank you so much Brian!

@LetsBuildThatApp 6 жыл бұрын

Super easy and fast right?

@Iamshivam.01 6 жыл бұрын

Thank you so much for this easy tutorial. really helped a lot understanding JSON parsing. Really like the way you teach concepts and make it so easy for us to understand.

@vermakaran83095 5 жыл бұрын

Finally understood this concept. Thanks a ton, mate! God bless.

@vijaykharage 7 жыл бұрын

This is amazing...I actually learning lots of things from you..thanks a ton for posting tutorials and sharing knowledge. You are awesome.

@GG-hk5iz 4 жыл бұрын

Thanks Brian for such a nice video. Really looking forward to see more videos from your side

@vickykorpal2443 6 жыл бұрын

Thank you so much for the best tutorial ever.

@techable7524 6 жыл бұрын

Thank you sir! Very useful to me and covered all the things I was concerned about when building me own app. Keep up the great work!

@faizuddin.mohammed 5 жыл бұрын

It has become hard for me to pass by any of your videos without giving it a *LIKE*. Some awesome content here.

@mrj9801 5 жыл бұрын

Thanks Brian. Your tutorials always help me many times :)

@Dennisvm82 7 жыл бұрын

Awesome video :D looking forward to Swift 4 and all the new stuff that is going to be included. Swift is becoming such a beautiful language to code in.

@LetsBuildThatApp 7 жыл бұрын

Swift is indeed one of my favorite languages to date.

@techknowart301 6 жыл бұрын

watch this bro kzfaq.info/get/bejne/iK-olKR_tpitmpc.html

@rishilund4120 6 жыл бұрын

one of the best tutorial for API's , thanks man

@FredrikChristenson 6 жыл бұрын

You have taught me almost everything I know about IOS development Brian, thanks for another great video!

@multitudes389 3 жыл бұрын

Had to rewatch this, really good and still actual

@thegoodshit1970 7 жыл бұрын

I love your intro to this video :D keep up the great videos.

@my_dixie_rect8865 6 жыл бұрын

You explain things in a very nice way. Thankyou. I've encountered really unintuitive tutorials on parsing JSON through alamofire into a data model. Came across this and I think I'll just go with this method instead.

@kelvinfok 7 жыл бұрын

Thanks for this tutorial Brian. Simply awesome!

@wagmun 3 жыл бұрын

Great tutorial! You made simple what others complicate a lot.

@krisharris8773 5 жыл бұрын

man, your series is wicked, keep it up!

@p.j.rosenburg8820 4 жыл бұрын

This was a great tutorial! I really appreciate your help.

@cholschuh 4 жыл бұрын

If only I found this video an hour ago lol. I had to figure this out myself. Great Video Tutorial man! I did not know about the Optional trick in the stuct. Thanks for the tip! My next task is to take the array of objects and load it into core data. :)

@hsummers96 7 жыл бұрын

This was a fantastic video. Please keep doing your thing here

@tatendakabike9217 6 жыл бұрын

Thanks man, i love the way you teach its just awesome. I just want to let you know that your teaching is great and your work is touching this side of Africa. I am able to teach and pass some skills to my peers back here in Zimbabwe.Keep up the great works brother.

@LetsBuildThatApp 6 жыл бұрын

Great to see this channel helping out all the way across the globe.

@benjamighty 3 жыл бұрын

It was actually simple. I really enjoyed this tutorial and understood it

@andertsk 6 жыл бұрын

Thanks! Very cool and informative video of new JSON parsing feature in Swift4! Subscribed!

@BayDeveloper 6 жыл бұрын

This tutorial is awesome man! Subscribed and liked video, You're awesome, thank you so much!

@sanjeevbharti3444 6 жыл бұрын

Thats amazing. Appreciate that you shared your knowledge. 👍

@GarethHall 7 жыл бұрын

Useful video man, thank you. Didn't think I'd watch the full 19 mins but I did.

@LetsBuildThatApp 7 жыл бұрын

19 mins is a long time, hope you were able to either grab breakfast or dinner during it.

@2ndbestfriend 6 жыл бұрын

Thanks so much!!! Took me no time at all to get the job done!

@Kayzer606 5 жыл бұрын

Nice, simple and easily understandable tutorial ! keep going bro

@HowToDoThisOrThat 5 жыл бұрын

Awsome. this video very helpfull for me as a new be using Swift. Thank you

@chhuonek4013 6 жыл бұрын

Just imagine what is swift 5 gonna be? This is awesome. Thank you!

@amari9773 7 жыл бұрын

You inspire me man. Thank you for these videos.

@alhaadidol2064 5 жыл бұрын

Great video, easy to understand and great explanation..Love it

@theodoroduarte702 6 жыл бұрын

Very good! straight to the point!

@BeastModeDR614 6 жыл бұрын

Thank you love your tutorials!

@BuenasNaczos 4 жыл бұрын

This is what i was looking for, thanks man.

@Pedruchito 4 жыл бұрын

Hey! You're really clever. Thank you very much for this tutorial. Your explanation are very well to understand although all this stuff is complicated.

@captainlennyjapan27 5 жыл бұрын

Best, most helpful video out there.. thank you so much. I subscribed.

@markhoath44 7 жыл бұрын

Excellent work Brian!

@ruleblack3087 6 жыл бұрын

Damnnnn This guy programs like a BOSS, i'm impressed Brian hope to reach your level one day.

@LetsBuildThatApp 6 жыл бұрын

Just years of coding repetition, nothing too fancy.

@peppercornfury 7 жыл бұрын

Your teaching videos are super insightful! Thank you!

@LetsBuildThatApp 7 жыл бұрын

Glad you find it useful to learn about Swift 4 and JSON.

@dipeshsisodiya6256 6 жыл бұрын

Thanks i got my issue you'r video really help full for me many time.

@ladykrystalline 6 жыл бұрын

Great video! It's way less confusing now. Thank you thank you!! :)

@bitj4ke 5 жыл бұрын

For those people who are following this tutorial this day. You have to add "number_of_lessons" in the struct after the 1st given link to prevent an error. Hehe -- Hi Brian! thanks for all the tutorials. Swift learner here from Philippines.

@basil5060 7 жыл бұрын

This is Amazing , Good bye SwiftyJSON , I will re-write my code to this way

@anythingtechno 6 жыл бұрын

This is so helpful, Super clear and concise Thanks you

@rafaellemus4894 4 жыл бұрын

muchas, muchas gracias por tu video, estoy comenzando a programar en este lenguaje y me has ayudado demasiado, muchas gracias

@shepherdnick 3 жыл бұрын

Excellent tutorial! Very on point!

@bittudavis 6 жыл бұрын

Nicely explained every part of it. Good one.

@krisjulio4412 6 жыл бұрын

Another great video brian. Thank you.

@johny_blaze37 6 жыл бұрын

Great stuff Brian, thanks a lot!

@jogendrasingh8575 7 жыл бұрын

I am really thankful for such a great video. It's really helpful. I can't wait for Xcode 9 stable version :)

@RohanLokeshSharma 7 жыл бұрын

Awesome stuff as always. Thanks a lot!

@craigthecat4202 7 жыл бұрын

Great video! Loving XCode 9 so far. Found a couple bugs which I've reported, but still very nice. Swift 4.0 though, so glad apple went back to collections with Strings!

@thinkmoversmagic6387 5 жыл бұрын

Great video sir your all videos are very helpfull thank you

@theJeraldo7 6 жыл бұрын

Amazing tutorials. Just subscribed. Can you please make a video of how to setup a project? I mean how you organize your classes and logic and stuff. It would be really great to hear from such a pro like you.

@eugeneahn4681 4 жыл бұрын

Awesome tutorial! Thanks a lot!!

4 жыл бұрын

Thank you very much for the video, it was very helpful.

@Fuddifadu 7 жыл бұрын

Smooth as breeze.. Thanks a lot!!

@feastures 6 жыл бұрын

First video I watched from you. Really great!

@navdeepsandhu5640 3 жыл бұрын

Fcfb

@BrianSnyderND 5 жыл бұрын

This was so helpful. Thanks!

@kennethroark917 5 жыл бұрын

Just awesome!! Thank you!

@itaispector6040 7 жыл бұрын

Thanks a lot Brian, this is definitely a valuable information, having the fact i spent a complete day on mastering the old way, this is now done very easily and clean, and like you said, it makes the use json parsing cocoa pods redundant. Big thumbs up

@LetsBuildThatApp 7 жыл бұрын

Indeed, I'm looking forward to having one less pod dependency.

@itaispector6040 7 жыл бұрын

By the way Brian, I'm confused about one thing. You've used in your tutorial the struct type in order to express an object, where lately i've been seen it more and more, and especially in Swift's documantation. Is it becoming a convention to express objects rather than creating normal classes?

@mcnimi 6 жыл бұрын

really helpful, thanks brian!

@cmriboldi 6 жыл бұрын

You're a wizard Brian!

@jamesfaulkner9713 6 жыл бұрын

Hey Brian, thanks for the amazing tutorials, I have been a big follower for some time now and love it when new content comes up. Just regarding this, its a simple question hopefully: Do you always have to construct a struct model to match the JSON, even if there are elements within the JSON your not interested in?

@DavidHelloWorld 7 жыл бұрын

This is wild! I love it

@gregorymolette118 5 жыл бұрын

thank you for this video ! great job

@chap01991 7 жыл бұрын

Very handy! Thanks!

@johnh4307 4 жыл бұрын

so good. It's really helpful for the Beginner programmers. thx a lot. :D

@FM-hq5jk 6 жыл бұрын

That was Hilarious . i was using a way long method to parse a simple JSON API's Thank You!

@riconaranjo. 6 жыл бұрын

Amazing video, I found it extremely helpful 🙂

@emmanuelpregnolato5026 6 жыл бұрын

awesome work!

@rocky10317 5 жыл бұрын

Thank you so much, you saved my day

@MrBlaq 7 жыл бұрын

Great tutorial, THANK YOU! RIP Alamofire and SwiftyJSON.

@RyuuzakiJulio 6 жыл бұрын

SUPER HELPFUL!! THANKS A LOT!

@harikiranp4309 5 жыл бұрын

Nice explanation, great thankful for that

@JoeySlomowitz 6 жыл бұрын

Thanks for the tutorial!

@TheGuilhermeDourado 6 жыл бұрын

Thanks man, you helped me a lot!!

@celalettinuyar8467 5 жыл бұрын

This tutorial really helpful for me thanks:)

@snaxion 6 жыл бұрын

Excellent. Thanks, man!

@NahitHabiboff 7 жыл бұрын

Thanks for you Brian..

@chaitanyapatil5555 7 жыл бұрын

Such a Gud tutorial...Parsing is easy task in Swift 4

@Zo91709 6 жыл бұрын

Great tutorial!

@samchen7120 6 жыл бұрын

Great video, very helpful.

@digvijaysinhgida7972 6 жыл бұрын

Very nice video Brian

@thethtun3617 5 жыл бұрын

thank you. it was really helpful.

@AaronOrtiz 7 жыл бұрын

Awesome! Instant subscribe

@boobeshsureshappu5795 6 жыл бұрын

Superbb and very use full