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Converting JSON to Dart Classes 

Bleyl Dev
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This tutorial shows you how to convert complex JSON response objects into a class structure in dart. We break down some of the most common examples of converting JSON to class structure as well as how to deal with nested class structures.
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11 окт 2024

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Комментарии : 25   
@kennyn.8233
@kennyn.8233 2 года назад
Just in time that I got stuck with nested object in dart class. Glad I found your tutorial. Thanks for sharing
@NPC.98
@NPC.98 3 года назад
Best flutter and dart Chanel keep it up
@aritrasanyal1485
@aritrasanyal1485 3 месяца назад
Thanks Bleyl Dev for this video, was kinda stuck with json_serializable unable to decode and all the instances were null for some reason
@Machiuka
@Machiuka 2 года назад
Awesome tutorial. It explains a lot about this complicated (for me anyway) topic. Thank you for sharing!
@anmolbindra1
@anmolbindra1 3 года назад
Thorough tutorial Thanks Man
@TGBPlayso
@TGBPlayso 2 года назад
thank you so much! keep at it!
@AshutoshKumar-jl5vu
@AshutoshKumar-jl5vu Год назад
hey, this one's the best explanation. Thanks
@mundocustom1485
@mundocustom1485 2 года назад
Great explanation, thanks for share buddy
@tameflame1229
@tameflame1229 3 года назад
Why use a factory constructor? Sorry if silly question
@lukas7338
@lukas7338 Год назад
wondering this too... did you find out?
@AhmadRifai-ey4uo
@AhmadRifai-ey4uo 9 месяцев назад
plz show how to format number from API in datacell dart with thousand separator
@StarBattle08
@StarBattle08 3 года назад
why are you using the toString() method when printing?
@memechallenge1161
@memechallenge1161 2 года назад
What if you have more than one coin.... how to store that data in a list of objects
@andrevini8099
@andrevini8099 3 года назад
I dont now why, when I use a jsonDecode, instead of receiving a Map I recieve a List, and I dont know what to do with it, anyone know why and what to do ?
@BillBrutzman
@BillBrutzman 2 года назад
Thanks. Helpful but _ I have json from API from SQL _ several records _ I am trying to inject into a Flutter dataTable. A single data element helps but _
@alfianrudiyanto7772
@alfianrudiyanto7772 2 года назад
nice video
@BleylDev
@BleylDev 2 года назад
Thanks!
@patricksingrin2788
@patricksingrin2788 3 года назад
Thanks for the nice tutorial. Everything worked well for me until I tried another json. I’m trying to get the values for ‚projectName‘ & ‚clientName‘. I get an error back: Error: Expected a value of type 'Map', but got one of type 'List' The class looks like this: --- import 'package:portfolio_web/model/fields_data.dart'; class ItemsData { final FieldsData fieldsdata; ItemsData({this.fieldsdata}); factory ItemsData.fromJson(Map json) { return ItemsData( fieldsdata: FieldsData.fromjson(json['items']), ); } } --- The FieldsData class looks basically the same. My guess is it’s because of the ‚items‘ structure. Sadly I couldn’t figure out how to solve it. I know it's probably hard to troubleshoot random code snippets but maybe you have an idea or can give me a hint. I would appreciate it. My json basically looks like this: { "sys": { "type": "Array" }, "total": 11, "skip": 0, "limit": 100, "items": [ {}, { "sys": {}, "fields": { "projectName": "Hello World!", "clientName": „World Inc“, "projectRoles": [] } }, }
@patricksingrin2788
@patricksingrin2788 3 года назад
I actually found a solution. I used a if-loop to process each element of the array of objects and added them to the final list: List list = new List.empty(growable: true); for(int i=0; i
@achmadirfanda
@achmadirfanda 2 года назад
hello world, did you know how to convert hash value (password) to string in dart?
@aakashchandrakar6359
@aakashchandrakar6359 3 года назад
How to Fetch Subcollecation in New FirebaseFirestore in Flutter App Pls help
@szyszak9424
@szyszak9424 Год назад
always receving null value
@BleylDev
@BleylDev Год назад
Sorry, this video is like 3 years outdated now if you didn’t see the time stamp… I’d recommend just asking whatever issue you have to chatgpt if this doesn’t work for you
@szyszak9424
@szyszak9424 Год назад
@@BleylDev i make it work. I was using rest API firebase and it generated special indentificators, after I looped trhough them and assign only values it works.
@memechallenge1161
@memechallenge1161 2 года назад
You have few comments yet you don’t reply lol
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