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 {
final response = await get(url, headers: headers);
_checkResponseSuccess(url, response);
return response.body;
}