curl --request POST \
  --url https://sandbox.antei.com/v1/tax/rate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "product_category": "SAAS",
  "delivery_method": "CLOUD",
  "customer_type": "B2B",
  "location": {
    "country": "US",
    "state": "CA",
    "postal_code": "94016",
    "ip_address": "192.168.1.1"
  }
}
'

import requests

url = "https://sandbox.antei.com/v1/tax/rate"

payload = {
    "product_category": "SAAS",
    "delivery_method": "CLOUD",
    "customer_type": "B2B",
    "location": {
        "country": "US",
        "state": "CA",
        "postal_code": "94016",
        "ip_address": "192.168.1.1"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    product_category: 'SAAS',
    delivery_method: 'CLOUD',
    customer_type: 'B2B',
    location: {country: 'US', state: 'CA', postal_code: '94016', ip_address: '192.168.1.1'}
  })
};

fetch('https://sandbox.antei.com/v1/tax/rate', 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://sandbox.antei.com/v1/tax/rate",
  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([
    'product_category' => 'SAAS',
    'delivery_method' => 'CLOUD',
    'customer_type' => 'B2B',
    'location' => [
        'country' => 'US',
        'state' => 'CA',
        'postal_code' => '94016',
        'ip_address' => '192.168.1.1'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://sandbox.antei.com/v1/tax/rate"

	payload := strings.NewReader("{\n  \"product_category\": \"SAAS\",\n  \"delivery_method\": \"CLOUD\",\n  \"customer_type\": \"B2B\",\n  \"location\": {\n    \"country\": \"US\",\n    \"state\": \"CA\",\n    \"postal_code\": \"94016\",\n    \"ip_address\": \"192.168.1.1\"\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://sandbox.antei.com/v1/tax/rate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"product_category\": \"SAAS\",\n  \"delivery_method\": \"CLOUD\",\n  \"customer_type\": \"B2B\",\n  \"location\": {\n    \"country\": \"US\",\n    \"state\": \"CA\",\n    \"postal_code\": \"94016\",\n    \"ip_address\": \"192.168.1.1\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.antei.com/v1/tax/rate")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"product_category\": \"SAAS\",\n  \"delivery_method\": \"CLOUD\",\n  \"customer_type\": \"B2B\",\n  \"location\": {\n    \"country\": \"US\",\n    \"state\": \"CA\",\n    \"postal_code\": \"94016\",\n    \"ip_address\": \"192.168.1.1\"\n  }\n}"

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

{
  "taxable": true,
  "total_rate": 123,
  "country_rate": 123,
  "state_rate": 123,
  "county_rate": 123,
  "additional_rate": 123,
  "special_rate": 123,
  "reverse_charge_applicable": true,
  "exempt": true
}

{
  "error": "<string>",
  "message": "<string>",
  "status": 123
}

{
  "error": "<string>",
  "message": "<string>",
  "status": 123
}