curl --request POST \
  --url https://playground.runa.io/v2/order/estimate \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "payment_method": {
    "type": "ACCOUNT_BALANCE",
    "currency": "USD"
  },
  "items": [
    {
      "products": {
        "type": "MULTIPLE",
        "values": [
          "AMZ-US",
          "AIRBNB-US"
        ]
      },
      "face_value": 10
    }
  ]
}
'

import requests

url = "https://playground.runa.io/v2/order/estimate"

payload = {
    "payment_method": {
        "type": "ACCOUNT_BALANCE",
        "currency": "USD"
    },
    "items": [
        {
            "products": {
                "type": "MULTIPLE",
                "values": ["AMZ-US", "AIRBNB-US"]
            },
            "face_value": 10
        }
    ]
}
headers = {
    "X-Api-Key": "<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': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    payment_method: {type: 'ACCOUNT_BALANCE', currency: 'USD'},
    items: [
      {products: {type: 'MULTIPLE', values: ['AMZ-US', 'AIRBNB-US']}, face_value: 10}
    ]
  })
};

fetch('https://playground.runa.io/v2/order/estimate', 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://playground.runa.io/v2/order/estimate",
  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([
    'payment_method' => [
        'type' => 'ACCOUNT_BALANCE',
        'currency' => 'USD'
    ],
    'items' => [
        [
                'products' => [
                                'type' => 'MULTIPLE',
                                'values' => [
                                                                'AMZ-US',
                                                                'AIRBNB-US'
                                ]
                ],
                'face_value' => 10
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Api-Key: <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://playground.runa.io/v2/order/estimate"

	payload := strings.NewReader("{\n  \"payment_method\": {\n    \"type\": \"ACCOUNT_BALANCE\",\n    \"currency\": \"USD\"\n  },\n  \"items\": [\n    {\n      \"products\": {\n        \"type\": \"MULTIPLE\",\n        \"values\": [\n          \"AMZ-US\",\n          \"AIRBNB-US\"\n        ]\n      },\n      \"face_value\": 10\n    }\n  ]\n}")

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

	req.Header.Add("X-Api-Key", "<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://playground.runa.io/v2/order/estimate")
  .header("X-Api-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"payment_method\": {\n    \"type\": \"ACCOUNT_BALANCE\",\n    \"currency\": \"USD\"\n  },\n  \"items\": [\n    {\n      \"products\": {\n        \"type\": \"MULTIPLE\",\n        \"values\": [\n          \"AMZ-US\",\n          \"AIRBNB-US\"\n        ]\n      },\n      \"face_value\": 10\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://playground.runa.io/v2/order/estimate")

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

request = Net::HTTP::Post.new(url)
request["X-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"payment_method\": {\n    \"type\": \"ACCOUNT_BALANCE\",\n    \"currency\": \"USD\"\n  },\n  \"items\": [\n    {\n      \"products\": {\n        \"type\": \"MULTIPLE\",\n        \"values\": [\n          \"AMZ-US\",\n          \"AIRBNB-US\"\n        ]\n      },\n      \"face_value\": 10\n    }\n  ]\n}"

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

{
  "payment_method": {
    "type": "ACCOUNT_BALANCE",
    "currency": "USD"
  },
  "items": [
    {
      "products": {
        "type": "MULTIPLE",
        "values": [
          "AMZ-US",
          "AIRBNB-US"
        ]
      },
      "face_value": 10,
      "price": 123,
      "discount_multiplier": "0.05",
      "currency": "USD"
    }
  ],
  "currency": "USD",
  "total_discount": 123,
  "total_price": 123,
  "transaction_detail": {
    "USD": {
      "value": "10.00",
      "fx": null
    }
  }
}

{
  "type": "not-found",
  "message": "The requested resource was not found",
  "help": "Please check the resource ID and try again."
}

{
  "type": "not-found",
  "message": "The requested resource was not found",
  "help": "Please check the resource ID and try again."
}

{
  "type": "validation_error",
  "message": "There were one or more problems processing your request, see details key.",
  "details": [
    {
      "type": "value_error.number.not_ge",
      "message": "ensure this value is greater than or equal to 1",
      "location": [
        "items",
        "0",
        "face_value"
      ]
    }
  ],
  "help": null
}

{
  "type": "not-found",
  "message": "The requested resource was not found",
  "help": "Please check the resource ID and try again."
}