postText method
Implementation
Future<Response> postText(String path, String body, {Map<String, String>? headers}) async {
if (path.startsWith("/")) {
path = path.substring(1);
}
final url = baseUrl.resolve(path);
final bodyText = body;
final request = Request("POST", url);
request.body = bodyText;
request.headers.addAll(getHeaders(headers ?? {})!);
final stream = await httpClient.send(request);
return await Response.fromStream(stream);
}