curl --request POST \
  --url https://api.maesn.dev/tenants/submission-page-style \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <x-api-key>' \
  --data '
{
  "backgroundColor": "#ffffff",
  "titleColor": "#202224",
  "textColor": "#202224",
  "inputBackgroundColor": "#f0f0f0",
  "submitButtonColor": "#27A691",
  "submitButtonTextColor": "#ffffff",
  "cancelButtonColor": "#cccccc",
  "cancelButtonTextColor": "#202224",
  "errorTextColor": "#cc0000",
  "logoSvg": "PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=",
  "logoPng": "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg=="
}
'

import requests

url = "https://api.maesn.dev/tenants/submission-page-style"

payload = {
    "backgroundColor": "#ffffff",
    "titleColor": "#202224",
    "textColor": "#202224",
    "inputBackgroundColor": "#f0f0f0",
    "submitButtonColor": "#27A691",
    "submitButtonTextColor": "#ffffff",
    "cancelButtonColor": "#cccccc",
    "cancelButtonTextColor": "#202224",
    "errorTextColor": "#cc0000",
    "logoSvg": "PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=",
    "logoPng": "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg=="
}
headers = {
    "X-API-KEY": "<x-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': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    backgroundColor: '#ffffff',
    titleColor: '#202224',
    textColor: '#202224',
    inputBackgroundColor: '#f0f0f0',
    submitButtonColor: '#27A691',
    submitButtonTextColor: '#ffffff',
    cancelButtonColor: '#cccccc',
    cancelButtonTextColor: '#202224',
    errorTextColor: '#cc0000',
    logoSvg: 'PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=',
    logoPng: 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg=='
  })
};

fetch('https://api.maesn.dev/tenants/submission-page-style', 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.maesn.dev/tenants/submission-page-style",
  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([
    'backgroundColor' => '#ffffff',
    'titleColor' => '#202224',
    'textColor' => '#202224',
    'inputBackgroundColor' => '#f0f0f0',
    'submitButtonColor' => '#27A691',
    'submitButtonTextColor' => '#ffffff',
    'cancelButtonColor' => '#cccccc',
    'cancelButtonTextColor' => '#202224',
    'errorTextColor' => '#cc0000',
    'logoSvg' => 'PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=',
    'logoPng' => 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg=='
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <x-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://api.maesn.dev/tenants/submission-page-style"

	payload := strings.NewReader("{\n  \"backgroundColor\": \"#ffffff\",\n  \"titleColor\": \"#202224\",\n  \"textColor\": \"#202224\",\n  \"inputBackgroundColor\": \"#f0f0f0\",\n  \"submitButtonColor\": \"#27A691\",\n  \"submitButtonTextColor\": \"#ffffff\",\n  \"cancelButtonColor\": \"#cccccc\",\n  \"cancelButtonTextColor\": \"#202224\",\n  \"errorTextColor\": \"#cc0000\",\n  \"logoSvg\": \"PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=\",\n  \"logoPng\": \"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==\"\n}")

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

	req.Header.Add("X-API-KEY", "<x-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://api.maesn.dev/tenants/submission-page-style")
  .header("X-API-KEY", "<x-api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"backgroundColor\": \"#ffffff\",\n  \"titleColor\": \"#202224\",\n  \"textColor\": \"#202224\",\n  \"inputBackgroundColor\": \"#f0f0f0\",\n  \"submitButtonColor\": \"#27A691\",\n  \"submitButtonTextColor\": \"#ffffff\",\n  \"cancelButtonColor\": \"#cccccc\",\n  \"cancelButtonTextColor\": \"#202224\",\n  \"errorTextColor\": \"#cc0000\",\n  \"logoSvg\": \"PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=\",\n  \"logoPng\": \"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.maesn.dev/tenants/submission-page-style")

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

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"backgroundColor\": \"#ffffff\",\n  \"titleColor\": \"#202224\",\n  \"textColor\": \"#202224\",\n  \"inputBackgroundColor\": \"#f0f0f0\",\n  \"submitButtonColor\": \"#27A691\",\n  \"submitButtonTextColor\": \"#ffffff\",\n  \"cancelButtonColor\": \"#cccccc\",\n  \"cancelButtonTextColor\": \"#202224\",\n  \"errorTextColor\": \"#cc0000\",\n  \"logoSvg\": \"PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCAxMjAgNDAiPjxyZWN0IHdpZHRoPSIxMjAiIGhlaWdodD0iNDAiIHJ4PSI4IiBmaWxsPSIjMjdBNjkxIi8+PHRleHQgeD0iNjAiIHk9IjI2IiBmb250LWZhbWlseT0iQXJpYWwiIGZvbnQtc2l6ZT0iMTYiIGZpbGw9IndoaXRlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIj5Mb2dvPC90ZXh0Pjwvc3ZnPgo=\",\n  \"logoPng\": \"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==\"\n}"

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

{}