go-to-dart

Go-to-dart helps you convert Go structs to Dart classes that can be used with json_serializable.

Features

• Supports only structs in the same package (no generics or embedded structs yet)
• Supports primitives, slices, maps, and pointers
• Support some other arbitrary types such as time.Time and mo.Option (easy to extend!)
• Support for json tags

Need something more? Please open an issue or even better, a PR!

Installation

go install github.com/11wizards/go-to-dart@latest

The above command will install go-to-dart in your $GOPATH/bin directory. Make sure that directory is in your $PATH.

Usage

For plain JSON serialization, you can use the json mode.

go-to-dart -i ./examples/user -o ./examples/user -m json

For serialization that works with Firestore, you can use the firestore mode.

go-to-dart -i ./examples/user -o ./examples/user -m firestore

Example

Running the command above would take the package ./examples/user below and generate a file ./examples/user/user.dart.

package user

import (
	"time"
)

type User struct {
	ID        int
	Name      string
	Email     string
	Password  string
	CreatedAt time.Time
	UpdatedAt time.Time
	DeletedAt *time.Time
	Options   map[string]string
	Tags      []string
}

Contents of ./examples/user/user.dart:

import 'package:json_annotation/json_annotation.dart';

part 'user.go.g.dart';

@JsonSerializable(explicitToJson: true)
class User {
	@JsonKey(name: "ID")final int id;
	@JsonKey(name: "Name")final String name;
	@JsonKey(name: "Email")final String email;
	@JsonKey(name: "Password")final String password;
	@JsonKey(name: "CreatedAt")final DateTime createdAt;
	@JsonKey(name: "UpdatedAt")final DateTime updatedAt;
	@JsonKey(name: "DeletedAt")final DateTime? deletedAt;
	@JsonKey(name: "Options", defaultValue: <String, String>{})final Map<String, String> options;
	@JsonKey(name: "Tags", defaultValue: <List<String>>[])final List<String> tags;
	
	User({
		required this.id,
		required this.name,
		required this.email,
		required this.password,
		required this.createdAt,
		required this.updatedAt,
		this.deletedAt,
		required this.options,
		required this.tags,
	});
	
	Map<String, dynamic> toJson() => _$UserToJson(this);
	
	factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
}