{
  "name": "Giriş, ürün, sepet, ödeme",
  "variables": { "base": "https://shop.example.com", "password": "Test1234!" },
  "options": { "timeout": "10s", "gracefulStop": "30s" },
  "scenarios": [
    {
      "name": "alisveris",
      "executor": { "type": "ramping-vus", "startVUs": 0,
        "stages": [ { "duration": "1m", "target": 50 }, { "duration": "5m", "target": 50 }, { "duration": "30s", "target": 0 } ] },
      "steps": [
        { "id": "login", "name": "Giriş", "once": true,
          "request": { "method": "POST", "url": "{{base}}/api/login",
            "body": { "type": "json", "content": "{\"email\":\"user{{__VU}}@example.com\",\"password\":\"{{password}}\"}" } },
          "extract": [ { "var": "token", "from": "jsonpath", "expr": "$.token" } ],
          "checks": [ { "type": "status", "value": 200 } ] },
        { "id": "products", "name": "Ürün listesi",
          "request": { "url": "{{base}}/api/products", "query": [ { "key": "page", "value": "{{$randInt 1 20}}" } ],
            "headers": [ { "key": "Authorization", "value": "Bearer {{token}}" } ] },
          "extract": [ { "var": "productId", "from": "jsonpath", "expr": "$.items[0].id" } ],
          "checks": [ { "type": "status", "value": 200 }, { "type": "latency", "op": "lt", "value": 800 } ],
          "thinkTime": { "min": "1s", "max": "3s" } },
        { "id": "cart", "name": "Sepete ekle",
          "request": { "method": "POST", "url": "{{base}}/api/cart", "modifiesData": true,
            "headers": [ { "key": "Authorization", "value": "Bearer {{token}}" } ],
            "body": { "type": "json", "content": "{\"productId\":\"{{productId}}\",\"quantity\":1}" } },
          "checks": [ { "type": "status", "op": "in", "value": [200, 201] } ],
          "thinkTime": { "min": "1s", "max": "2s" } },
        { "id": "checkout", "name": "Ödeme",
          "request": { "method": "POST", "url": "{{base}}/api/checkout", "modifiesData": true,
            "headers": [ { "key": "Authorization", "value": "Bearer {{token}}" }, { "key": "Idempotency-Key", "value": "{{$uuid}}" } ],
            "body": { "type": "json", "content": "{\"paymentMethod\":\"test-card\"}" } },
          "checks": [ { "type": "status", "value": 201 }, { "type": "jsonPath", "path": "$.status", "value": "confirmed" } ] }
      ]
    }
  ],
  "thresholds": [
    { "metric": "req_duration", "expr": "p(95)<800" },
    { "metric": "req_failed", "expr": "rate<0.01" },
    { "metric": "req_duration", "filter": { "step": "checkout" }, "expr": "p(95)<1500" }
  ]
}