curl --request POST \
  --url https://api.example.com/{connector_id}/list_custom_attributes_schema \
  --header 'Content-Type: application/json' \
  --data '
{
  "request": {},
  "include_raw_data": true,
  "page": {
    "token": "<string>",
    "size": 123
  },
  "settings": {},
  "auth": {
    "id": "some_unique_id"
  },
  "credentials": [
    {
      "id": "some_unique_id"
    }
  ]
}
'

import requests

url = "https://api.example.com/{connector_id}/list_custom_attributes_schema"

payload = {
    "request": {},
    "include_raw_data": True,
    "page": {
        "token": "<string>",
        "size": 123
    },
    "settings": {},
    "auth": { "id": "some_unique_id" },
    "credentials": [{ "id": "some_unique_id" }]
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    request: {},
    include_raw_data: true,
    page: {token: '<string>', size: 123},
    settings: {},
    auth: {id: 'some_unique_id'},
    credentials: [{id: 'some_unique_id'}]
  })
};

fetch('https://api.example.com/{connector_id}/list_custom_attributes_schema', 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://api.example.com/{connector_id}/list_custom_attributes_schema",
  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([
    'request' => [
        
    ],
    'include_raw_data' => true,
    'page' => [
        'token' => '<string>',
        'size' => 123
    ],
    'settings' => [
        
    ],
    'auth' => [
        'id' => 'some_unique_id'
    ],
    'credentials' => [
        [
                'id' => 'some_unique_id'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://api.example.com/{connector_id}/list_custom_attributes_schema"

	payload := strings.NewReader("{\n  \"request\": {},\n  \"include_raw_data\": true,\n  \"page\": {\n    \"token\": \"<string>\",\n    \"size\": 123\n  },\n  \"settings\": {},\n  \"auth\": {\n    \"id\": \"some_unique_id\"\n  },\n  \"credentials\": [\n    {\n      \"id\": \"some_unique_id\"\n    }\n  ]\n}")

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

	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://api.example.com/{connector_id}/list_custom_attributes_schema")
  .header("Content-Type", "application/json")
  .body("{\n  \"request\": {},\n  \"include_raw_data\": true,\n  \"page\": {\n    \"token\": \"<string>\",\n    \"size\": 123\n  },\n  \"settings\": {},\n  \"auth\": {\n    \"id\": \"some_unique_id\"\n  },\n  \"credentials\": [\n    {\n      \"id\": \"some_unique_id\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/{connector_id}/list_custom_attributes_schema")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"request\": {},\n  \"include_raw_data\": true,\n  \"page\": {\n    \"token\": \"<string>\",\n    \"size\": 123\n  },\n  \"settings\": {},\n  \"auth\": {\n    \"id\": \"some_unique_id\"\n  },\n  \"credentials\": [\n    {\n      \"id\": \"some_unique_id\"\n    }\n  ]\n}"

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

{
  "response": [
    {
      "customized_type": "account",
      "name": "<string>",
      "attribute_type": "string",
      "description": "<string>"
    }
  ],
  "raw_data": "<unknown>",
  "page": {
    "token": "<string>",
    "size": 123
  }
}