POST https://api.hackle.io/v1/variation

curl -i -X POST \
  'https://api.hackle.io/v1/variation' \
  -H 'X-HACKLE-API-KEY: YOUR_SDK_KEY_HERE' \
  -H 'Content-Type: application/json' \
  -d '{
    "experimentKey": 42,
    "user": {
      "userId": "19285035",
      "deviceId": "ae2182e0",
      "identifiers": {
        "sessionId": "16930492542",
        "myCustomId": "ff01eae2"
      },
      "properties": {
        "grade": "GOLD",
        "age": 30,
        "isLogin": true
      }
    }
  }'

{
  "variation": "B",
  "reason": "TRAFFIC_ALLOCATED",
  "parameters": {
    "buttonText": "Purchase",
    "buttonSize": 16
  }
}