Flutter Json to Class in Javascript

In Flutter, there are often needs to convert JSON data into a corresponding Dart class object. This process is called "JSON decoding" and requires the creation of a model class that corresponds to the JSON data structure. In JavaScript, we can implement the same functionality using a library called "json2dart".

What is json2dart?

json2dart is a JavaScript library that generates Dart classes from JSON objects. It provides a simple and easy-to-use interface for converting JSON data to Dart objects. This library is especially useful when dealing with complex JSON data structures and when you want to avoid the tedious task of manually coding the corresponding Dart classes.

How to use json2dart?

Using json2dart is very simple. First, you need to install the library:

npm install -g json2dart

Once installed, you can use the library to generate the corresponding Dart classes from a JSON file or object. Here is an example:

const json2dart = require('json2dart');
const json = `{
    "name": "John Doe",
    "age": 30,
    "email": "johndoe@example.com",
    "phone": {
        "home": "555-1234",
        "mobile": "555-5678"
    }
}`;

const dart = json2dart(json);
console.log(dart);

This will output:

class Root {
    String name;
    int age;
    String email;
    Phone phone;
}

class Phone {
    String home;
    String mobile;
}

As you can see, json2dart has generated the corresponding Dart classes for the given JSON object.

Conclusion

json2dart is a powerful tool for converting JSON data into corresponding Dart classes. It is easy to use and can save you a lot of time and effort when working with complex JSON data structures. I hope this introduction has been helpful in understanding the basics of how json2dart works.