curl --request POST \
  --url https://public-api.sessionboard.com/v1/event/{eventId}/fields \
  --header 'Content-Type: application/json' \
  --header 'x-access-token: <api-key>' \
  --data '
{
  "filters": {
    "createdAt": {
      "before": "2023-11-07T05:31:56Z",
      "after": "2023-11-07T05:31:56Z"
    },
    "updatedAt": {
      "before": "2023-11-07T05:31:56Z",
      "after": "2023-11-07T05:31:56Z"
    }
  },
  "sort": {},
  "expand": [
    "<string>"
  ]
}
'

import requests

url = "https://public-api.sessionboard.com/v1/event/{eventId}/fields"

payload = {
    "filters": {
        "createdAt": {
            "before": "2023-11-07T05:31:56Z",
            "after": "2023-11-07T05:31:56Z"
        },
        "updatedAt": {
            "before": "2023-11-07T05:31:56Z",
            "after": "2023-11-07T05:31:56Z"
        }
    },
    "sort": {},
    "expand": ["<string>"]
}
headers = {
    "x-access-token": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-access-token': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    filters: {
      createdAt: {before: '2023-11-07T05:31:56Z', after: '2023-11-07T05:31:56Z'},
      updatedAt: {before: '2023-11-07T05:31:56Z', after: '2023-11-07T05:31:56Z'}
    },
    sort: {},
    expand: ['<string>']
  })
};

fetch('https://public-api.sessionboard.com/v1/event/{eventId}/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://public-api.sessionboard.com/v1/event/{eventId}/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([
    'filters' => [
        'createdAt' => [
                'before' => '2023-11-07T05:31:56Z',
                'after' => '2023-11-07T05:31:56Z'
        ],
        'updatedAt' => [
                'before' => '2023-11-07T05:31:56Z',
                'after' => '2023-11-07T05:31:56Z'
        ]
    ],
    'sort' => [
        
    ],
    'expand' => [
        '<string>'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-access-token: <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://public-api.sessionboard.com/v1/event/{eventId}/fields"

	payload := strings.NewReader("{\n  \"filters\": {\n    \"createdAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    },\n    \"updatedAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    }\n  },\n  \"sort\": {},\n  \"expand\": [\n    \"<string>\"\n  ]\n}")

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

	req.Header.Add("x-access-token", "<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://public-api.sessionboard.com/v1/event/{eventId}/fields")
  .header("x-access-token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filters\": {\n    \"createdAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    },\n    \"updatedAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    }\n  },\n  \"sort\": {},\n  \"expand\": [\n    \"<string>\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://public-api.sessionboard.com/v1/event/{eventId}/fields")

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

request = Net::HTTP::Post.new(url)
request["x-access-token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"filters\": {\n    \"createdAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    },\n    \"updatedAt\": {\n      \"before\": \"2023-11-07T05:31:56Z\",\n      \"after\": \"2023-11-07T05:31:56Z\"\n    }\n  },\n  \"sort\": {},\n  \"expand\": [\n    \"<string>\"\n  ]\n}"

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

{
  "results": [
    {
      "id": "<string>",
      "internal_name": "<string>",
      "public_name": "<string>",
      "field_type": "<string>",
      "field_source": "<string>",
      "contains_pii": true,
      "scope": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>"
    }
  ],
  "pagination": {
    "currentPage": 123,
    "pageSize": 123,
    "totalPages": 123,
    "totalResults": 123
  }
}