working-with-json-data

readme.md

working-with-json-data

Created with <3 with dartpad.dev.

main.dart

import 'dart:convert';
void main() {
 

// this represents some response data we get from the network
final jsonData = '{ "name": "Pizza da Mario", "cuisine": "Italian" }';
// 2. decode the json
final parsedJson = jsonDecode(jsonData);
// 3. print the type and value
print('${parsedJson.runtimeType} : $parsedJson');
	
// Creating a Map with Name and ids of students
Map <String,int> mp={'Ankur':1,'Arnav':002,'Shivam':003};
print('Map :$mp');
  
 var person = '{"url":"http://blah.jpg","id":21}';
  var decodePerson = jsonDecode(person);
  print('$decodePerson');
  
  var imageModel = ImageModel.fromJson(decodePerson);
  
  print(imageModel.url);

}

//model classes of json

class ImageModel{
  int id = 0;
  String url = '';
  ImageModel(this.id,this.url);
  
  //named constructor
  ImageModel.fromJson(parsedJson){
    id = parsedJson['id'];
    url = parsedJson['url'];
  }
}