Mirai is a powerful Server-Driven UI (SDUI) framework for Flutter, enabling you to build beautiful, cross-platform applications dynamically using JSON in real time.
Whether you’re building apps for mobile, web, or desktop, Mirai simplifies UI delivery and enhances flexibility without requiring redeployment for every design change.
- 🛠️ Build Dynamic UIs: Update your app’s UI instantly with JSON configurations.
- 🌍 Cross-Platform: Write once, render anywhere – Flutter does the rest.
- ⚡ Fast Iterations: Make changes on the server and see them live in your app.
- 🧪 Try Mirai Playground – A sandbox environment for experimenting with Mirai Dynamic UI.
- 📚 Read the Documentation – Get started with detailed guides and examples.
Developed with 💙 by Mirai
First, we need to add Mirai to our pubspec.yaml file.
Install the plugin by running the following command from the project root:
flutter pub add miraiNow that we have successfully installed Mirai, we can import Mirai in main.dart.
import 'package:mirai/mirai.dart';Next, within main function initialize Mirai.
void main() async {
await Mirai.initialize();
runApp(const MyApp());
}You can also specify your custom Parsers in Mirai.initialize and Dio instance.
void main() async {
final dio = Dio();
await Mirai.initialize(
parsers: const [
ExampleScreenParser(),
],
dio: dio,
);
runApp(const MyApp());
}Finally, replace your MaterialApp with MiraiApp. And call your json with Mirai.fromJson(json, context).
import 'package:flutter/material.dart';
import 'package:mirai/mirai.dart';
void main() async {
await Mirai.initialize();
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MiraiApp(
title: 'Mirai Demo',
homeBuilder: (context) => Mirai.fromJson(json, context),
);
}
}
Here is an example of a basic form screen build with Mirai.
{
"type": "scaffold",
"appBar": {
"type": "appBar",
"title": {
"type": "text",
"data": "Text Field",
"style": {
"color": "#ffffff",
"fontSize": 21
}
},
"backgroundColor": "#4D00E9"
},
"backgroundColor": "#ffffff",
"body": {
"type": "singleChildScrollView",
"child": {
"type": "container",
"padding": {
"left": 12,
"right": 12,
"top": 12,
"bottom": 12
},
"child": {
"type": "column",
"mainAxisAlignment": "center",
"crossAxisAlignment": "center",
"children": [
{
"type": "sizedBox",
"height": 24
},
{
"type": "textField",
"maxLines": 1,
"keyboardType": "text",
"textInputAction": "done",
"textAlign": "start",
"textCapitalization": "none",
"textDirection": "ltr",
"textAlignVertical": "top",
"obscureText": false,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"hintText": "What do people call you?",
"filled": true,
"icon": {
"type": "icon",
"iconType": "cupertino",
"icon": "person_solid",
"size": 24
},
"hintStyle": {
"color": "#797979"
},
"labelText": "Name*",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
},
{
"type": "sizedBox",
"height": 24
},
{
"type": "textField",
"maxLines": 1,
"keyboardType": "text",
"textInputAction": "done",
"textAlign": "start",
"textCapitalization": "none",
"textDirection": "ltr",
"textAlignVertical": "top",
"obscureText": false,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"hintText": "Where can we reach you?",
"filled": true,
"icon": {
"type": "icon",
"iconType": "cupertino",
"icon": "phone_solid",
"size": 24
},
"hintStyle": {
"color": "#797979"
},
"labelText": "Phone number*",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
},
{
"type": "sizedBox",
"height": 24
},
{
"type": "textField",
"maxLines": 1,
"keyboardType": "text",
"textInputAction": "done",
"textAlign": "start",
"textCapitalization": "none",
"textDirection": "ltr",
"textAlignVertical": "top",
"obscureText": false,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"hintText": "Your email address",
"filled": true,
"icon": {
"type": "icon",
"iconType": "material",
"icon": "email",
"size": 24
},
"hintStyle": {
"color": "#797979"
},
"labelText": "Email",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
},
{
"type": "sizedBox",
"height": 24
},
{
"type": "sizedBox",
"height": 100,
"child": {
"type": "textField",
"expands": true,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"filled": true,
"hintStyle": {
"color": "#797979"
},
"labelText": "Life story",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
}
},
{
"type": "sizedBox",
"height": 24
},
{
"type": "textField",
"maxLines": 1,
"keyboardType": "text",
"textInputAction": "done",
"textAlign": "start",
"textCapitalization": "none",
"textDirection": "ltr",
"textAlignVertical": "top",
"obscureText": true,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"filled": true,
"suffixIcon": {
"type": "icon",
"iconType": "cupertino",
"icon": "eye",
"size": 24
},
"hintStyle": {
"color": "#797979"
},
"labelText": "Password*",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
},
{
"type": "sizedBox",
"height": 24
},
{
"type": "textField",
"maxLines": 1,
"keyboardType": "text",
"textInputAction": "done",
"textAlign": "start",
"textCapitalization": "none",
"textDirection": "ltr",
"textAlignVertical": "top",
"obscureText": true,
"cursorColor": "#FC3F1B",
"style": {
"color": "#000000"
},
"decoration": {
"filled": true,
"suffixIcon": {
"type": "icon",
"iconType": "cupertino",
"icon": "eye",
"size": 24
},
"hintStyle": {
"color": "#797979"
},
"labelText": "Re-type password*",
"fillColor": "#F2F2F2"
},
"readOnly": false,
"enabled": true
},
{
"type": "sizedBox",
"height": 48
},
{
"type": "elevatedButton",
"child": {
"type": "text",
"data": "Submit"
},
"style": {
"backgroundColor": "#4D00E9",
"padding": {
"top": 8,
"left": 12,
"right": 12,
"bottom": 8
}
},
"onPressed": {}
}
]
}
}
}
}import 'package:flutter/material.dart';
import 'package:mirai/mirai.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MiraiApp(
title: 'Mirai Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Mirai.fromNetwork(
MiraiRequest(
url: _url,
method: Method.get,
),
),
);
}
}Note:
Mirai provides multiple methods to parse JSONs into Flutter widgets. You can use
Mirai.fromNetwork(),Mirai.fromJson()&Mirai.fromAsset()
That's it with just few lines of code your SDUI app is up and running.
Check out the Mirai Gallery app for more such examples.
