curl --request POST \
  --url https://api.avatcado.com/v1/validate/async \
  --header 'Content-Type: application/json' \
  --data '
{
  "vat_number": "DE123456789",
  "requester_vat_number": "NL987654321B01",
  "cache": true,
  "fallback": true
}
'

import requests

url = "https://api.avatcado.com/v1/validate/async"

payload = {
    "vat_number": "DE123456789",
    "requester_vat_number": "NL987654321B01",
    "cache": True,
    "fallback": True
}
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({
    vat_number: 'DE123456789',
    requester_vat_number: 'NL987654321B01',
    cache: true,
    fallback: true
  })
};

fetch('https://api.avatcado.com/v1/validate/async', 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.avatcado.com/v1/validate/async",
  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([
    'vat_number' => 'DE123456789',
    'requester_vat_number' => 'NL987654321B01',
    'cache' => true,
    'fallback' => true
  ]),
  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.avatcado.com/v1/validate/async"

	payload := strings.NewReader("{\n  \"vat_number\": \"DE123456789\",\n  \"requester_vat_number\": \"NL987654321B01\",\n  \"cache\": true,\n  \"fallback\": true\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.avatcado.com/v1/validate/async")
  .header("Content-Type", "application/json")
  .body("{\n  \"vat_number\": \"DE123456789\",\n  \"requester_vat_number\": \"NL987654321B01\",\n  \"cache\": true,\n  \"fallback\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.avatcado.com/v1/validate/async")

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  \"vat_number\": \"DE123456789\",\n  \"requester_vat_number\": \"NL987654321B01\",\n  \"cache\": true,\n  \"fallback\": true\n}"

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

{
  "data": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000",
    "status": "pending",
    "vat_number": "DE123456789"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000",
    "request_duration_ms": 120,
    "mode": "test",
    "source": "vies",
    "source_status": "live",
    "cached": true,
    "stale": true,
    "cached_at": "<string>"
  }
}

{
  "error": {
    "code": "webhook_not_configured",
    "message": "Configure a webhook URL before using async validation. See https://docs.avatcado.com/webhooks",
    "docs_url": "https://docs.avatcado.com/errors/webhook_not_configured"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "unauthorized",
    "message": "Missing or invalid API key",
    "docs_url": "https://docs.avatcado.com/errors/unauthorized"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "tier_insufficient",
    "message": "Async validation requires a Pro or Business plan",
    "docs_url": "https://docs.avatcado.com/errors/tier_insufficient"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "invalid_vat_format",
    "message": "The VAT number format is invalid. Expected format: CC123456789",
    "docs_url": "https://docs.avatcado.com/errors/invalid_vat_format",
    "vat_number": "DE123"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "Monthly validation limit exceeded",
    "docs_url": "https://docs.avatcado.com/errors/rate_limit_exceeded",
    "vat_number": "DE123456789"
  },
  "meta": {
    "request_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}