curl --request POST \
  --url https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "name": "email",
  "type": "TEXT",
  "labels": {
    "en": "Email",
    "pl": "Adres e-mail"
  },
  "validators": {
    "required": true,
    "maxLength": 100,
    "pattern": "^[^@\\s]+@[^@\\s]+\\.[^@\\s]+$"
  }
}
'

import requests

url = "https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields"

payload = {
    "name": "email",
    "type": "TEXT",
    "labels": {
        "en": "Email",
        "pl": "Adres e-mail"
    },
    "validators": {
        "required": True,
        "maxLength": 100,
        "pattern": "^[^@\s]+@[^@\s]+\.[^@\s]+$"
    }
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'email',
    type: 'TEXT',
    labels: {en: 'Email', pl: 'Adres e-mail'},
    validators: {required: true, maxLength: 100, pattern: '^[^@\s]+@[^@\s]+\.[^@\s]+$'}
  })
};

fetch('https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'email',
    'type' => 'TEXT',
    'labels' => [
        'en' => 'Email',
        'pl' => 'Adres e-mail'
    ],
    'validators' => [
        'required' => true,
        'maxLength' => 100,
        'pattern' => '^[^@\\s]+@[^@\\s]+\\.[^@\\s]+$'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields"

	payload := strings.NewReader("{\n  \"name\": \"email\",\n  \"type\": \"TEXT\",\n  \"labels\": {\n    \"en\": \"Email\",\n    \"pl\": \"Adres e-mail\"\n  },\n  \"validators\": {\n    \"required\": true,\n    \"maxLength\": 100,\n    \"pattern\": \"^[^@\\\\s]+@[^@\\\\s]+\\\\.[^@\\\\s]+$\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"email\",\n  \"type\": \"TEXT\",\n  \"labels\": {\n    \"en\": \"Email\",\n    \"pl\": \"Adres e-mail\"\n  },\n  \"validators\": {\n    \"required\": true,\n    \"maxLength\": 100,\n    \"pattern\": \"^[^@\\\\s]+@[^@\\\\s]+\\\\.[^@\\\\s]+$\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway-api.sandbox.paymove.io/api/pay/product/{productId}/form/{formId}/fields")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"email\",\n  \"type\": \"TEXT\",\n  \"labels\": {\n    \"en\": \"Email\",\n    \"pl\": \"Adres e-mail\"\n  },\n  \"validators\": {\n    \"required\": true,\n    \"maxLength\": 100,\n    \"pattern\": \"^[^@\\\\s]+@[^@\\\\s]+\\\\.[^@\\\\s]+$\"\n  }\n}"

response = http.request(request)
puts response.read_body