app/Http/Controllers/Settings/SecurityController.php
public function enableTwoFactorAuth(Request $request)
    {
        if (! is_null($response = $this->validateEnablingTwoFactorAuth($request))) {
            return $response;
        }

        $user = Auth::user();

        $user->setAuthPhoneInformation(
            $request->country_code, $request->phone_number
        );

        try {
            Spark::twoFactorProvider()->register($user);
        } catch (Exception $e) {
            app(ExceptionHandler::class)->report($e);

            return response()->json(['The provided phone information is invalid.'], 422);
        }

        $user->save();

        return $this->users->getCurrentUser();
    }
public function enableTwoFactorAuth(Request $request)
    {
        if (! is_null($response = $this->validateEnablingTwoFactorAuth($request))) {
            return $response;
        }

        $user = Auth::user();

        $user->setAuthPhoneInformation(
            $request->country_code, $request->phone_number
        );

        try {
            Spark::twoFactorProvider()->register($user);
        } catch (Exception $e) {
            app(ExceptionHandler::class)->report($e);

            return response()->json(['The provided phone information is invalid.'], 422);
        }

        $user->save();

        return $this->users->getCurrentUser();
    }
Enable two-factor authentication for the user.

@param  \Illuminate\Http\Request  $request
@return \Illuminate\Http\Response