using RestSharp;


var options = new RestClientOptions("http://localhost:56350/api/v1/Document/UdefLayout/Published/{progidOrLabel}");
var client = new RestClient(options);
var request = new RestRequest("");
var response = await client.GetAsync(request);

Console.WriteLine("{0}", response.Content);

const options = {method: 'GET'};

fetch('http://localhost:56350/api/v1/Document/UdefLayout/Published/{progidOrLabel}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "56350",
  CURLOPT_URL => "http://localhost:56350/api/v1/Document/UdefLayout/Published/{progidOrLabel}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

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

curl_close($curl);

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

import requests

url = "http://localhost:56350/api/v1/Document/UdefLayout/Published/{progidOrLabel}"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('http://localhost:56350/api/v1/Document/UdefLayout/Published/{progidOrLabel}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "UDefFieldId": 123,
  "ColumnId": 123,
  "FieldDefault": "<string>",
  "FieldHeight": 123,
  "FieldLabel": "<string>",
  "FieldLeft": 123,
  "FieldTop": 123,
  "FieldType": "Number",
  "FieldWidth": 123,
  "FormatMask": "<string>",
  "HideLabel": true,
  "IsIndexed": true,
  "LabelHeight": 123,
  "LabelLeft": 123,
  "LabelTop": 123,
  "LabelWidth": 123,
  "LastVersionId": 123,
  "ListTableId": 123,
  "IsMandatory": true,
  "Type": "Invalid",
  "Page1LineNo": 123,
  "ProgId": "<string>",
  "IsReadOnly": true,
  "ShortLabel": "<string>",
  "TabOrder": 123,
  "TextLength": 123,
  "Tooltip": "<string>",
  "UdefIdentity": 123,
  "UDListDefinitionId": 123,
  "Justification": "Default",
  "Version": 123,
  "TemplateVariableName": "<string>",
  "HasBeenPublished": true,
  "MdoListName": "<string>",
  "TableRight": {
    "Mask": "<string>",
    "Reason": "<string>"
  },
  "FieldProperties": {}
}