Dart - Request GET with cookie - request

Question

I'm trying to make a get request but I need to put the cookie.
Using the curl works:
curl -v --cookie "sessionid=asdasdasqqwd" <my_site>
But the function below does not bring anything
import 'dart:async';
import 'package:http/http.dart' as http;
import 'package:html/parser.dart' as parser;
import 'package:html/dom.dart';
...
parseHtml() async {
http.Response response = await http.get (
<my_site>,
headers: {"sessionid": "asdasdasqqwd"}
);
Document document = parser.parse (response.body);
print(document.text);
}
Would there be any way to put the cookie on the get request in Dart?

Answer 1

You could use the http.get(Url, Headers Map) function and manually create your cookies in the header map, but it is easier to make a request with cookies included by using HttpClient:
import 'dart:convert';
import 'dart:io';
import 'package:html/dom.dart';
import 'package:html/parser.dart' as parser;
parseHtml() async {
HttpClient client = new HttpClient();
HttpClientRequest clientRequest =
await client.getUrl(Uri.parse("http: //www.example.com/"));
clientRequest.cookies.add(Cookie("sessionid", "asdasdasqqwd"));
HttpClientResponse clientResponse = await clientRequest.close();
clientResponse.transform(utf8.decoder).listen((body) {
Document document = parser.parse(body);
print(document.text);
});
}

Answer 2

To complement the answer:
import 'dart:convert';
import 'dart:io';
import 'package:html/dom.dart';
import 'package:html/parser.dart' as parser;
parseHtml() async {
HttpClient client = new HttpClient();
HttpClientRequest clientRequest =
await client.getUrl(Uri.parse("http://www.example.com/"));
clientRequest.cookies.add(Cookie("sessionid", "asdasdasqqwd"));
HttpClientResponse clientResponse = await clientRequest.close();
clientResponse.transform(utf8.decoder).listen((body) {
Document document = parser.parse(body);
print(document.text); // null
for(Element element in document.getElementsByClassName('your_class')) {
...
}
});
}
The code above worked perfectly well as well as the code below works perfectly:
parseHtml() async {
http.Response response = await http.get(
'http://www.example.com/',
headers: {'Cookie': 'sessionid=asdasdasqqwd'}
);
Document document = parser.parse(response.body);
print(document.text); // null
for(Element element in document.getElementsByClassName('your_class')) {
...
}
}

Answer 3

I used the following method, in addition to rafaelcb21's answer above:
String stringifyCookies(Map<String, String> cookies) =>
cookies.entries.map((e) => '${e.key}=${e.value}').join('; ');
// Used like so..
http.response response = await http.get(
'https://google.com',
headers: { 'Cookie': stringifyCookies(cookies) });