require 'net/http'
require 'json'

post_fields = [
  {
    "transaction_id" => "0099990099",
    "merchant_id" => "678345104",
    "merchant_establishment_country_id" => "POL",
    "merchant_VAT_numbers" => "DE9875234",
    "transaction_sum" => 12.50,
    "currency" => "EUR",
    "arrival_country" => "LVA",
    "good_code" => "62160000",
    "departure_country" => "POL"
  }
]

token = '6cec387781a94425b401206d1710801a'
uri = URI('https://omp.vatcompliance.co/api/omp/tax_rate/')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri.path)
request['Content-Type'] = 'application/json'
request['Authorization'] = "Bearer #{token}"
request.body = post_fields.to_json

response = http.request(request)

puts response.body

import requests
import json

post_fields = [
    {
        "transaction_id": "0099990099",
        "merchant_id": "678345104",
        "merchant_establishment_country_id": "POL",
        "merchant_VAT_numbers": "DE9875234",
        "transaction_sum": 12.50,
        "currency": "EUR",
        "arrival_country": "LVA",
        "good_code": "62160000",
        "departure_country": "POL"
    }
]

token = '6cec387781a94425b401206d1710801a'
url = 'https://omp.vatcompliance.co/api/omp/tax_rate/'

headers = {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer ' + token
}

response = requests.post(url, data=json.dumps(post_fields), headers=headers)

print(response.text)

$postFields = [
	[

		"transaction_id" => "0099990099",
		"merchant_id" => "678345104",
		"merchant_establishment_country_id" => "POL",
		"merchant_VAT_numbers" => "DE9875234",
		"transaction_sum" => 12.50,
		"currency" => "EUR",
		"arrival_country" => "LVA",
		"good_code" => "62160000",
		"departure_country" => "POL"
	],
];

$token = '6cec387781a94425b401206d1710801a';

$curl = curl_init();

curl_setopt_array($curl, array(
	CURLOPT_URL => 'https://omp.vatcompliance.co/api/omp/tax_rate/',
	CURLOPT_RETURNTRANSFER => true,
	CURLOPT_ENCODING => '',
	CURLOPT_MAXREDIRS => 10,
	CURLOPT_TIMEOUT => 0,
	CURLOPT_FOLLOWLOCATION => true,
	CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
	CURLOPT_CUSTOMREQUEST => 'POST',
	CURLOPT_POSTFIELDS => json_encode($postFields),
	CURLOPT_HTTPHEADER => array(
		'Content-Type: application/json'
	),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

const axios = require('axios');

const postFields = [
  {
    transaction_id: '0099990099',
    merchant_id: '678345104',
    merchant_establishment_country_id: 'POL',
    merchant_VAT_numbers: 'DE9875234',
    transaction_sum: 12.50,
    currency: 'EUR',
    arrival_country: 'LVA',
    good_code: '62160000',
    departure_country: 'POL'
  }
];

const token = '6cec387781a94425b401206d1710801a';
const url = 'https://omp.vatcompliance.co/api/omp/tax_rate/';

const headers = {
  'Content-Type': 'application/json',
  Authorization: 'Bearer ' + token
};

axios
  .post(url, postFields, { headers: headers })
  .then((response) => {
    console.log(response.data);
  })
  .catch((error) => {
    console.error(error.message);
  });

/* Your code... */

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        String token = "6cec387781a94425b401206d1710801a";
        String url = "https://omp.vatcompliance.co/api/omp/tax_rate/";

        try {
            URL apiUrl = new URL(url);
            HttpURLConnection connection = (HttpURLConnection) apiUrl.openConnection();

            connection.setRequestMethod("POST");
            connection.setRequestProperty("Authorization", "Bearer " + token);
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setDoOutput(true);

            String postData = "[{\"transaction_id\":\"0099990099\",\"merchant_id\":\"678345104\",\"merchant_establishment_country_id\":\"POL\",\"merchant_VAT_numbers\":\"DE9875234\",\"transaction_sum\":12.50,\"currency\":\"EUR\",\"arrival_country\":\"LVA\",\"good_code\":\"62160000\",\"departure_country\":\"POL\"}]";

            try (DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream())) {
                outputStream.writeBytes(postData);
                outputStream.flush();
            }

            int responseCode = connection.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String inputLine;
                StringBuffer response = new StringBuffer();

                while ((inputLine = in.readLine()) != null) {
                    response.append(inputLine);
                }
                in.close();

                System.out.println(response.toString());
            } else {
                System.out.println("Request failed. Status code: " + responseCode);
            }

            connection.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	token := "6cec387781a94425b401206d1710801a"
	url := "https://omp.vatcompliance.co/api/omp/tax_rate/"

	postData := []map[string]interface{}{
		{
			"transaction_id":                 "0099990099",
			"merchant_id":                    "678345104",
			"merchant_establishment_country_id": "POL",
			"merchant_VAT_numbers":           "DE9875234",
			"transaction_sum":                12.50,
			"currency":                       "EUR",
			"arrival_country":                "LVA",
			"good_code":                      "62160000",
			"departure_country":              "POL",
		},
	}

	jsonData, err := json.Marshal(postData)
	if err != nil {
		fmt.Println("Error marshaling JSON:", err)
		return
	}

	request, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
	if err != nil {
		fmt.Println("Error creating request:", err)
		return
	}

	request.Header.Set("Authorization", "Bearer "+token)
	request.Header.Set("Content-Type", "application/json")

	client := &http.Client{}
	response, err := client.Do(request)
	if err != nil {
		fmt.Println("Error sending request:", err)
		return
	}
	defer response.Body.Close()

	body, err := ioutil.ReadAll(response.Body)
	if err != nil {
		fmt.Println("Error reading response body:", err)
		return
	}

	fmt.Println(string(body))
}