curl --request POST \
  --url https://api.example.com/api/v1/partner/public/estimate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "exchangeId": 1,
  "sourceCurrencyId": 1,
  "destCurrencyId": 2,
  "amount": 1000,
  "direction": "source"
}
'

import requests

url = "https://api.example.com/api/v1/partner/public/estimate"

payload = {
    "exchangeId": 1,
    "sourceCurrencyId": 1,
    "destCurrencyId": 2,
    "amount": 1000,
    "direction": "source"
}
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({
    exchangeId: 1,
    sourceCurrencyId: 1,
    destCurrencyId: 2,
    amount: 1000,
    direction: 'source'
  })
};

fetch('https://api.example.com/api/v1/partner/public/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://api.example.com/api/v1/partner/public/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([
    'exchangeId' => 1,
    'sourceCurrencyId' => 1,
    'destCurrencyId' => 2,
    'amount' => 1000,
    'direction' => 'source'
  ]),
  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://api.example.com/api/v1/partner/public/estimate"

	payload := strings.NewReader("{\n  \"exchangeId\": 1,\n  \"sourceCurrencyId\": 1,\n  \"destCurrencyId\": 2,\n  \"amount\": 1000,\n  \"direction\": \"source\"\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://api.example.com/api/v1/partner/public/estimate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"exchangeId\": 1,\n  \"sourceCurrencyId\": 1,\n  \"destCurrencyId\": 2,\n  \"amount\": 1000,\n  \"direction\": \"source\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/api/v1/partner/public/estimate")

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  \"exchangeId\": 1,\n  \"sourceCurrencyId\": 1,\n  \"destCurrencyId\": 2,\n  \"amount\": 1000,\n  \"direction\": \"source\"\n}"

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

{
  "sourceAmount": 1000,
  "destAmount": 41500,
  "rate": 41.5,
  "isReverse": false,
  "sourceCurrency": {
    "id": 1,
    "name": "US Dollar",
    "ticker": "USD",
    "image": {
      "id": "cbcfa8b8-3a25-4adb-a9c6-e325f0d0f3ae",
      "path": "/uploads/usd.png"
    }
  },
  "destCurrency": {
    "id": 1,
    "name": "US Dollar",
    "ticker": "USD",
    "image": {
      "id": "cbcfa8b8-3a25-4adb-a9c6-e325f0d0f3ae",
      "path": "/uploads/usd.png"
    }
  },
  "exchangeId": 1,
  "offerId": 42
}

{
  "statusCode": 400,
  "message": [
    "url must be a URL address",
    "events should not be empty"
  ],
  "error": "Bad Request"
}

{
  "statusCode": 401,
  "message": "Unauthorized"
}

{
  "statusCode": 404,
  "message": "Not Found"
}

{
  "statusCode": 429,
  "message": "Too Many Requests"
}