Best way to implement REST API testing with Nightwatch.js

I'm using Nightwatch-Cucumber that based on Nightwatch.js. And I want to integrate REST API tests in my Nightwatch framework. Currently I only have End2End tests based on Selenium, but in future I want to have both test types in one framework to make it also possible to use the End2End tests and the REST API tests in harmony within one Cucumber test. So, I want to combine both tests.

What is the best and smartest way to implement such REST API tests in my test framework based on Nightwatch-Cucumber? I've tried some stuff with frisby.js, but this framework uses Jasmine and Jest and it's not a good idea to use it in combination with Nightwatch and Cucumber.

Any recommendations?