read method
Sends an HTTP GET request with the given headers to the given URL and returns a Future that completes to the body of the response as a String.
The Future will emit a ClientException
if the response doesn't have a
success status code.
For more fine-grained control over the request and response, use send or get instead.
Implementation
@override
Future<String> read(Uri url, {Map<String, String>? headers}) async =>
(await http.get(url, headers: headers)).body;