[K6] Test HTTP

k6http.js

import http from 'k6/http';
import { check, sleep } from 'k6';
import { randomString } from 'https://jslib.k6.io/k6-utils/1.1.0/index.js';

// Options for the load test scenario
export let options = {
  stages: [
    { duration: '30s', target: 50 },
    { duration: '3m', target: 100 },
    { duration: '30s', target: 0 },
  ],
  thresholds: {
    http_req_duration: ['p(95)<2000'], // 95% of requests should be below 2s
  },
};

// Base URL for the proxy server
const BASE_URL = 'http://192.168.194.139:1337';

// Function to simulate normal and malicious request patterns
function makeRequest() {
  // Generate a random URL path
  let path = randomString(10);
  
  // Randomize request method and payload size to simulate attack vectors
  let method = Math.random() < 0.5 ? 'GET' : 'POST';
  let payload = method === 'POST' ? randomString(1000 + Math.floor(Math.random() * 9000)) : '';
  let params = {
    headers: {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer ' + randomString(20) // Random fake token
    },
  };

  // Send the HTTP request to the proxy server
  let res = http.request(method, `${BASE_URL}/${path}`, payload, params);

  // Check the response status and content
  check(res, {
    'response body is not empty': (r) => r.body.length > 0
  });
}

// The default function that will be run for each virtual user
export default function () {
  // Each virtual user will make 10 requests with a random delay
  for (let i = 0; i < 10; i++) {
    makeRequest();
    sleep(Math.random()); // Random sleep to simulate varied request patterns
  }
}