private void performRegistration() {
        showProgressDialog(true);
        //Make an api call to sign in
        //new SignInTask().execute(username.getText().toString(), password.getText().toString());
        ApiManager.getApiInterface().registration(new AuthenticationRequest(username.getText().toString().trim(), password.getText().toString().trim()))
                .enqueue(new Callback<MessageResponse>() {
                    @Override
                    public void onResponse(Call<MessageResponse> call, Response<MessageResponse> response) {
                        showProgressDialog(false);
                        if (response.isSuccessful()) {
                            showAlert("Welcome", response.body().getMessage());
                        } else {
                            try {
                                String errorMessage = response.errorBody().string();
                                try {
                                    ErrorResponse errorResponse = new Gson().fromJson(errorMessage, ErrorResponse.class);
                                    showAlert("line 142 Registration failed", errorResponse.getError());
                                } catch (JsonSyntaxException jsonException) {
                                    showAlert("line 144 Registration Failed", "Something went wrong");
                                }
                            } catch (IOException e) {
                                e.printStackTrace();
                                showAlert("line 149 Registration Failed", "Something went wrong");
                            }
                        }
                    }
                    @Override
                    public void onFailure(Call<MessageResponse> call, Throwable t) {
                        showProgressDialog(false);
                        showAlert("line 158 Registration Failed", "Something went wrong");
                    }
                });
    }