curl --request POST \
  --url https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/conditions \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "condition": {
    "enabled": true,
    "conditions": {
      "join_type": "and",
      "items": [
        {
          "field": "<string>",
          "verb": "is_equal",
          "record": "custom_value",
          "value": "Yes"
        }
      ]
    },
    "actions": {
      "items": [
        {
          "action_type": "show_multiple",
          "fields": [
            "<string>"
          ],
          "field": "<string>",
          "value": "<string>",
          "custom_value": "<string>"
        }
      ]
    }
  }
}
'

const options = {
  method: 'POST',
  headers: {'X-Api-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    condition: {
      enabled: true,
      conditions: {
        join_type: 'and',
        items: [{field: '<string>', verb: 'is_equal', record: 'custom_value', value: 'Yes'}]
      },
      actions: {
        items: [
          {
            action_type: 'show_multiple',
            fields: ['<string>'],
            field: '<string>',
            value: '<string>',
            custom_value: '<string>'
          }
        ]
      }
    }
  })
};

fetch('https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/conditions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/conditions"

payload = { "condition": {
        "enabled": True,
        "conditions": {
            "join_type": "and",
            "items": [
                {
                    "field": "<string>",
                    "verb": "is_equal",
                    "record": "custom_value",
                    "value": "Yes"
                }
            ]
        },
        "actions": { "items": [
                {
                    "action_type": "show_multiple",
                    "fields": ["<string>"],
                    "field": "<string>",
                    "value": "<string>",
                    "custom_value": "<string>"
                }
            ] }
    } }
headers = {
    "X-Api-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "condition": {
    "id": "7c1d2b0e-3f7a-4c55-9d2e-0b8e1f6a9c11",
    "enabled": true,
    "priority": 123,
    "conditions": {
      "join_type": "and",
      "items": [
        {
          "field": "<string>",
          "verb": "is_equal",
          "record": "custom_value",
          "value": "Yes"
        }
      ]
    },
    "actions": {
      "items": [
        {
          "action_type": "show_multiple",
          "fields": [
            "<string>"
          ],
          "field": "<string>",
          "value": "<string>",
          "custom_value": "<string>"
        }
      ]
    },
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}

{
  "error": "param is missing or the value is empty: condition"
}

{
  "error": "Form does not exist."
}