# k6 load test
import http from 'k6/http';
import { sleep, check } from 'k6';
import { Rate, Trend } from 'k6/metrics';

const errorRate = new Rate('errors');
const checkoutDuration = new Trend('checkout_duration');

export const options = {
  stages: [
    { duration: '5m',  target: 100  },   // ramp up to 100 VU
    { duration: '10m', target: 500  },   // ramp up to 500 VU (production-like)
    { duration: '5m',  target: 1000 },   // stress test: 2x expected
    { duration: '5m',  target: 1500 },   // breaking point test
    { duration: '5m',  target: 0    },   // ramp down
  ],
  thresholds: {
    'errors': ['rate<0.01'],           // error rate must be < 1%
    'http_req_duration': ['p(99)<500'], // p99 must be < 500ms
    'checkout_duration': ['p(99)<800'], // checkout specifically < 800ms
  },
};

export default function () {
  const startTime = Date.now();

  const response = http.post('https://api.staging.company.com/v1/checkout', JSON.stringify({
    cart_id: `cart_${__VU}_${__ITER}`,
    payment_method: 'card',
    card_token: 'tok_visa_test'
  }), {
    headers: { 'Content-Type': 'application/json' },
  });

  checkoutDuration.add(Date.now() - startTime);
  errorRate.add(response.status !== 200);

  check(response, {
    'status is 200': (r) => r.status === 200,
    'response time < 500ms': (r) => r.timings.duration < 500,
    'has order_id': (r) => r.json('order_id') !== undefined,
  });

  sleep(1);
}
Capacity Planning — תכנון קיבולת

Capacity Planning — תכנון קיבולת

Capacity Planning — תכנון קיבולת
