Datasets:
Ekhlass
/
flutter_docs

Dataset card Data Studio Files
xet
Community
1
text
stringlengths
1
372
the http package provides a
convenient way to add headers to your requests.
alternatively, use the HttpHeaders
class from the dart:io library.
<code_start>
final response = await http.get(
uri.parse('https://jsonplaceholder.typicode.com/albums/1'),
// send authorization headers to the backend.
headers: {
HttpHeaders.authorizationHeader: 'basic your_api_token_here',
},
);
<code_end>
<topic_end>
<topic_start>
complete example
this example builds upon the
fetching data from the internet recipe.
<code_start>
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:http/http.dart' as http;
Future<Album> fetchAlbum() async {
final response = await http.get(
uri.parse('https://jsonplaceholder.typicode.com/albums/1'),
// send authorization headers to the backend.
headers: {
HttpHeaders.authorizationHeader: 'basic your_api_token_here',
},
);
final responseJson = jsonDecode(response.body) as Map<String, dynamic>;
return Album.fromJson(responseJson);
}
class album {
final int userId;
final int id;
final string title;
const album({
required this.userId,
required this.id,
required this.title,
});
factory Album.fromJson(Map<String, dynamic> json) {
return switch (json) {
{
'userid': int userId,
'id': int id,
'title': string title,
} =>
album(
userId: userId,
id: id,
title: title,
),
_ => throw const FormatException('Failed to load album.'),
};
}
}
<code_end>
<topic_end>
<topic_start>
send data to the internet
sending data to the internet is necessary for most apps.
the http package has got that covered, too.
this recipe uses the following steps:
<topic_end>
<topic_start>
1. add the http package
to add the http package as a dependency,
run flutter pub add:
import the http package.
<code_start>
import 'package:http/http.dart' as http;
<code_end>
if you develop for android,
add the following permission inside the manifest tag
in the AndroidManifest.xml file located at android/app/src/main.
<topic_end>
<topic_start>
2. sending data to server
this recipe covers how to create an album
by sending an album title to the
JSONPlaceholder using the
http.post() method.
import dart:convert for access to jsonEncode to encode the data:
<code_start>
import 'dart:convert';
<code_end>
use the http.post() method to send the encoded data:
<code_start>
Future<http.Response> createAlbum(String title) {
return http.post(
uri.parse('https://jsonplaceholder.typicode.com/albums'),
headers: <string, string>{
'content-type': 'application/json; charset=UTF-8',
},
body: jsonEncode(<String, string>{
'title': title,
}),