flutter-app

_init

flutter pub add servicestack
flutter pub get

lib\dtos.dart

/* Options:
Date: 2023-01-13 13:45:10
Version: 6.41
Tip: To override a DTO option, remove "//" prefix before updating
BaseUrl: https://localhost:5001

//GlobalNamespace:
//AddServiceStackTypes: True
//AddResponseStatus: False
//AddImplicitVersion:
//AddDescriptionAsComments: True
//IncludeTypes:
//ExcludeTypes:
//DefaultImports: package:servicestack/servicestack.dart
*/

import 'package:servicestack/servicestack.dart';

class HelloResponse implements IConvertible
{
    String? result;

    HelloResponse({this.result});
    HelloResponse.fromJson(Map<String, dynamic> json) { fromMap(json); }

    fromMap(Map<String, dynamic> json) {
        result = json['result'];
        return this;
    }

    Map<String, dynamic> toJson() => {
        'result': result
    };

    getTypeName() => "HelloResponse";
    TypeContext? context = _ctx;
}

// @Route("/hello")
// @Route("/hello/{Name}")
class Hello implements IReturn<HelloResponse>, IConvertible
{
    String? name;

    Hello({this.name});
    Hello.fromJson(Map<String, dynamic> json) { fromMap(json); }

    fromMap(Map<String, dynamic> json) {
        name = json['name'];
        return this;
    }

    Map<String, dynamic> toJson() => {
        'name': name
    };

    createResponse() => HelloResponse();
    getResponseTypeName() => "HelloResponse";
    getTypeName() => "Hello";
    TypeContext? context = _ctx;
}

TypeContext _ctx = TypeContext(library: 'localhost', types: <String, TypeInfo> {
    'HelloResponse': TypeInfo(TypeOf.Class, create:() => HelloResponse()),
    'Hello': TypeInfo(TypeOf.Class, create:() => Hello()),
});

lib\main.dart

import 'package:flutter/material.dart';
import 'package:servicestack/client.dart';

import 'dtos.dart';

const baseUrl = "https://localhost:5001";

var client = JsonServiceClient(baseUrl);

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: const HelloFlutter(title: 'Flutter Demo Home Page'),
    );
  }
}

class HelloFlutter extends StatefulWidget {
  const HelloFlutter({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<StatefulWidget> createState() => HelloFlutterState();
}

class HelloFlutterState extends State<HelloFlutter> {
  //State for this widget
  String result = "";
  var myController = TextEditingController();

  @override
  void initState() {
    super.initState();

    myController.addListener(callService);
  }

  void callService() {
    client.get(Hello(name: myController.text)).then((value) => setState(() {
      result = value.result!;
    }));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          // Here we take the value from the MyHomePage object that was created by
          // the App.build method, and use it to set our appbar title.
          title: Text(widget.title),
        ),
      body: Center(
        child: Column(
            mainAxisAlignment: MainAxisAlignment.center,

            children: <Widget>[
              const Text('Hello API', style: TextStyle(fontWeight: FontWeight.bold,fontSize: 24.0),),
              Container(
                  margin: const EdgeInsets.only(left:100.0,right:100.0),
                  child: TextField(
                    decoration: const InputDecoration(
                      border: OutlineInputBorder(),
                      hintText: 'World',
                    ),
                  controller: myController,
                ),
              ),
              Text('Result: $result',
              style: const TextStyle(fontStyle: FontStyle.italic),)
            ],
        ),
      )
    );
  }
}