import 'dart:convert';
import 'package:http/http.dart' as http;
class ApiService<T> {
final String _baseUrl;
ApiService(this._baseUrl);
Future<List<T>> getAll(T Function(Map<String, dynamic>) fromJson) async {
final response = await http.get(Uri.parse(_baseUrl));
if (response.statusCode == 200) {
final jsonData = json.decode(response.body) as List;
return jsonData.map((data) => fromJson(data)).toList();
} else {
throw Exception('Failed to load data');
}
}
Future<List<T>> search(String query, T Function(Map<String, dynamic>) fromJson) async {
final response = await http.get(Uri.parse('$_baseUrl?search=$query'));
if (response.statusCode == 200) {
final jsonData = json.decode(response.body) as List;
return jsonData.map((data) => fromJson(data)).toList();
} else {
throw Exception('Failed to search data');
}
}
Future<T> create(Map<String, dynamic> data, T Function(Map<String, dynamic>) fromJson) async {
final response = await http.post(
Uri.parse(_baseUrl),
headers: {'Content-Type': 'application/json'},
body: json.encode(data),
);
if (response.statusCode == 201) {
return fromJson(json.decode(response.body));
} else {
throw Exception('Failed to create data');
}
}
Future<T> update(int id, Map<String, dynamic> data, T Function(Map<String, dynamic>) fromJson) async {
final response = await http.put(
Uri.parse('$_baseUrl/$id'),
headers: {'Content-Type': 'application/json'},
body: json.encode(data),
);
if (response.statusCode == 200) {
return fromJson(json.decode(response.body));
} else {
throw Exception('Failed to update data');
}
}
Future<void> delete(int id) async {
final response = await http.delete(Uri.parse('$_baseUrl/$id'));
if (response.statusCode != 204) {
throw Exception('Failed to delete data');
}
}
}
//=============================================
class Note {
final int id;
final String title;
final String content;
Note({required this.id, required this.title, required this.content});
factory Note.fromJson(Map<String, dynamic> json) {
return Note(
id: json['id'],
title: json['title'],
content: json['content'],
);
}
Map<String, dynamic> toJson() {
return {
'id': id,
'title': title,
'content': content,
};
}
}
final notesService = ApiService<Note>('http://10.0.2.2:8000/api/notes');
// Get all notes
final notes = await notesService.getAll(Note.fromJson);
// Search for notes
final searchResults = await notesService.search('keyword', Note.fromJson);
// Create a new note
final newNote = await notesService.create(
{
'title': 'New Note',
'content': 'This is a new note',
},
Note.fromJson,
);
// Update a note
final updatedNote = await notesService.update(
newNote.id,
{
'title': 'Updated Note',
'content': 'This is an updated note',
},
Note.fromJson,
);
// Delete a note
await notesService.delete(updatedNote.id);
