Flutter Dart - How to send a Post Request using HttpClient() - http

Question

I am trying to send a Post request to my server using HttpClient but I am not sure where to actually set the payload and headers that need to be sent.
var client = new HttpClient();
client.post(host, port, path);
client.post(host, port, path) has only 3 arguments so how do I set the payload to be sent?
Thanks in advance

Answer 1

post() opens a HTTP connection using the POST method and returns Future<HttpClientRequest>.
So you need to do this:
final client = HttpClient();
final request = await client.post(host, port, path);
request.headers.set(HttpHeaders.contentTypeHeader, "plain/text"); // or headers.add()
final response = await request.close();
Example with jsonplaceholder:
final client = HttpClient();
final request = await client.postUrl(Uri.parse("https://jsonplaceholder.typicode.com/posts"));
request.headers.set(HttpHeaders.contentTypeHeader, "application/json; charset=UTF-8");
request.write('{"title": "Foo","body": "Bar", "userId": 99}');
final response = await request.close();
response.transform(utf8.decoder).listen((contents) {
print(contents);
});
prints
{
"title": "Foo",
"body": "Bar",
"userId": 99,
"id": 101
}
Or you can use http library.

Answer 2

String url =
'http://wwww.foo.com';
http.get(url).then((http.Response response) {
is_loading=true;
// print(json.decode(response.body));
Map<String, dynamic> Data = json.decode(response.body);
Data.forEach((String data, dynamic data_value) {
print(data + " : ");
print(data_value.toString());
// Map<String,String> decoded_data=json.decode(data);
// print(data_value.toString());
//print(data['title']);
//print(data['content']);
});