create-and-fetch-todo-http-request.js

import http from "k6/http";
import { check, group } from "k6";

export let options = {
  stages: [
    { duration: "0.5m", target: 3 }, // simulate ramp-up of traffic from 1 to 100 users over 5 minutes.
    // { duration: '0.5m', target: 4 }, // stay at 100 users for 10 minutes
    // { duration: '0.5m', target: 0 }, // ramp-down to 0 users
  ],
  ext: {
    loadimpact: {
      projectID: 3737535,
      // Test runs with the same name groups test runs together
      name: "CircleCI Todo Load Test",
    },
  },
};

export default function () {
  group("API uptime check", () => {
    const response = http.get("https://todo-barkend-api-f523e469c18a.herokuapp.com/todos/");
    check(response, {
      "status code should be 200": (res) => res.status === 200,
    });
  });

  let todoID;
  group("Create a Todo", () => {
    const response = http.post("https://todo-barkend-api-f523e469c18a.herokuapp.com/todos/", {
      task: "write k6 tests",
    });
    todoID = response.json()._id;
    check(response, {
      "status code should be 200": (res) => res.status === 200,
    });
    check(response, {
      "response should have created todo": (res) => res.json().completed === false,
    });
  });

  group("get a todo item", () => {
    const response = http.get(
      `https://todo-barkend-api-f523e469c18a.herokuapp.com/todos/${todoID}`
    );
    check(response, {
      "status code should be 200": (res) => res.status === 200,
    });
    check(response, {
      "response should have the created todo": (res) => res.json()[0]._id === todoID,
    });
    console.log(JSON.stringify(response.json()[0]));

    check(response, {
      "response should have the correct state": (res) => res.json()[0].completed === false,
    });
  });
}