curl --request POST \
  --url 'https://api-prod.usefini.com/v2/hc-rules/test-fields/preview/public' \
  --header 'Authorization: Bearer fini_your_api_key' \
  --header 'Content-Type: application/json' \
  --data '{
  "flowConfig": {
    "name": "Example",
    "value": "message"
  }
}'

const response = await fetch('https://api-prod.usefini.com/v2/hc-rules/test-fields/preview/public', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer fini_your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
  'flowConfig': {
    'name': 'Example',
    'value': 'message'
  }
}
  )
});

const data = await response.json();

import requests

response = requests.post(
    "https://api-prod.usefini.com/v2/hc-rules/test-fields/preview/public",
    headers={"Authorization": "Bearer fini_your_api_key", "Content-Type": "application/json"},
    json={
    "flowConfig": {
        "name": "Example",
        "value": "message"
    }
},
)

data = response.json()

{
  "contextFields": [
    {
      "path": "message.text",
      "dataType": "string"
    },
    {
      "path": "user.email",
      "dataType": "string"
    }
  ],
  "operatorTypes": [
    "==",
    "!=",
    "contains"
  ],
  "quantifierTypes": [
    "ANY",
    "ALL",
    "NONE"
  ]
}