intercept function - call another function with original result & parameters

test.js

const add = (key, fn) => {
    fn = (() => {
        let original_fn = fn;
        return (...params) => {
            const original_result = original_fn.apply(this, params);
            return another_func(...original_result);
        };
    })();
};

add("method1", (id) => [`/users/${id}`])