Summary - http

Combine http.get and statusCode to fetch data.

Summary - http

In this section you learned three things: with the http package you make REST requests; with http.get you fetch data; with response.statusCode you do error handling.

final response = await http.get(
  Uri.parse('https://api.example.com/data'),
);
if (response.statusCode == 200) {
  print(response.body);
}

Combining these, you build a data fetching screen.

Exercise Build a data fetching screen

Write an async method veriCek. Make a request with http.get(Uri.parse('https://api.example.com/kullanici')). If response.statusCode == 200, print 'gövde: ${response.body}'; otherwise print 'hata: ${response.statusCode}'. In main, await veriCek and call print('bitti').

Show example solution

import 'package:http/http.dart' as http;

Future<void> veriCek() async {
  final response = await http.get(Uri.parse('https://api.example.com/kullanici'));
  if (response.statusCode == 200) {
    print('gövde: ${response.body}');
  } else {
    print('hata: ${response.statusCode}');
  }
}

void main() async {
  await veriCek();
  print('bitti');
}

Test yourself

What is done if statusCode is 200 on the data fetching screen?
- The request is sent again
- The app is closed
- An error message is shown
- response.body is processed and shown
Show answer

response.body is processed and shown — If statusCode is 200, the request succeeded; response.body is processed and reflected to the screen.

Complete the http.get call

final response = await http.____(Uri.parse('https://api.example.com/veri'));

Show answer

final response = await http.get(Uri.parse('https://api.example.com/veri'));

http section parts

http

Package making REST requests
get

Data fetching method
statusCode

Property giving HTTP status code
Response

Request return object

Next lesson: jsonDecode

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