counter.js

import http from 'k6/http';
import { Counter } from 'k6/metrics';

export const options = {
    vus: 10,
    duration: '20s'

}

const categoriesCounter = new Counter("called_categories");
const usersCounter = new Counter("called_users");
const productsCounter = new Counter("called_products");

export default function () {
    switch (Math.floor(Math.random() * 3)) {
        case 0:
            let categoriesResponse = http.get("https://api.escuelajs.co/api/v1/products");
            categoriesCounter.add(1);
            break;

        case 1:
            let usersResponse = http.get("https://api.escuelajs.co/api/v1/products");
            usersCounter.add(1);
            break;
        case 2:
            let productsResponse = http.get("https://api.escuelajs.co/api/v1/products");
            productsCounter.add(1);
            break;
        default:
            break;
    }
}