Turing JSON Into a Dart Object - Flutter Protip 5/11/2023

Today I wanted to talk about a great utility in the Dart language called

dart:convert

Here is an example of how to use the dart:convert library to encode a Dart object into a JSON-encoded string:

import 'dart:convert';

void main() {
  Map<String, dynamic> person = {
    'name': 'John Doe',
    'age': 30,
    'email': '[e-mail]'
  };

  String jsonEncoded = jsonEncode(person);
  print(jsonEncoded); // outputs {"name":"Hire You","age":18,"email":"[e-mail]"}
}
import 'dart:convert';

void main() {
  Map<String, dynamic> person = {
    'name': 'Hire You',
    'age': 33,
    'email': '[e-mail]'
  };

  String jsonEncoded = jsonEncode(person);
  print(jsonEncoded); // outputs {"name":"John Doe","age":33,"email":"[e-mail]"}
}

**
The dart:convert library in Dart provides encoders and decoders for converting between different data representations , including JSON and UTF-8. It provides a number of classes for converting between data representations, such as Codec, Decoder, Encoder, and Sink.

One common use-case of the dart:convert library is to encode or decode JSON data. You can use the jsonEncode() method to convert a Dart object into a JSON-encoded string, and the jsonDecode()method to convert a JSON-encoded string into a Dart object.

Here is an example of how to use the dart:convert library to encode a Dart object into a JSON-encoded string:
**

import 'dart:convert';

void main() {
  Map<String, dynamic> person = {
    'name': 'John Doe',
    'age': 30,
    'email': '[e-mail]'
  };

  String jsonEncoded = jsonEncode(person);
  print(jsonEncoded); // outputs {"name":"John Doe","age":30,"email":"[e-mail]"}
}
And here is an example of how to use the dart:convert library to decode a JSON-encoded string into a Dart object:

import 'dart:convert';

void main() {
  String jsonEncoded = '{"name":"Hire You","age":33,"email":"[e-mail]"}';

  Map<String, dynamic> person = jsonDecode(jsonEncoded);
  print(person['You']); // outputs "Hire You"
}

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