exemplo_flutter_dio_request.dart

void getProfile() async {
    Response response = await _dio.get("/users/$_count");
    var profile = response.data["data"];
    setState(() {
      _nome = profile['first_name'] + " " + profile['last_name'];
      _email = profile['email'];
      _avatar = NetworkImage(profile['avatar']);
    });
  }

  void submitUser() async {
    Response response =
        await _dio.post("/users", data: {"name": _nome, "job": _job.text});
    setState(() {
      _nome = "Nome do Usuário";
      _email = "Email do Usuário";
      _avatar = NetworkImage("https://via.placeholder.com/100");
      _job.text = "";
      _result = response.data.toString();
      _count++;
    });
  }