curl --request POST \
  --url https://gateway.varchev.com/crypto/addOrder \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'tenantId: <tenantid>' \
  --data '
{
  "pair": "XXBTZUSD",
  "type": "buy",
  "ordertype": "limit",
  "price": "45000.1",
  "volume": "2.1234",
  "leverage": "2:1"
}
'

import requests

url = "https://gateway.varchev.com/crypto/addOrder"

payload = {
    "pair": "XXBTZUSD",
    "type": "buy",
    "ordertype": "limit",
    "price": "45000.1",
    "volume": "2.1234",
    "leverage": "2:1"
}
headers = {
    "tenantId": "<tenantid>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    tenantId: '<tenantid>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    pair: 'XXBTZUSD',
    type: 'buy',
    ordertype: 'limit',
    price: '45000.1',
    volume: '2.1234',
    leverage: '2:1'
  })
};

fetch('https://gateway.varchev.com/crypto/addOrder', 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://gateway.varchev.com/crypto/addOrder",
  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([
    'pair' => 'XXBTZUSD',
    'type' => 'buy',
    'ordertype' => 'limit',
    'price' => '45000.1',
    'volume' => '2.1234',
    'leverage' => '2:1'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "tenantId: <tenantid>"
  ],
]);

$response = curl_exec($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://gateway.varchev.com/crypto/addOrder"

	payload := strings.NewReader("{\n  \"pair\": \"XXBTZUSD\",\n  \"type\": \"buy\",\n  \"ordertype\": \"limit\",\n  \"price\": \"45000.1\",\n  \"volume\": \"2.1234\",\n  \"leverage\": \"2:1\"\n}")

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

	req.Header.Add("tenantId", "<tenantid>")
	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://gateway.varchev.com/crypto/addOrder")
  .header("tenantId", "<tenantid>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"pair\": \"XXBTZUSD\",\n  \"type\": \"buy\",\n  \"ordertype\": \"limit\",\n  \"price\": \"45000.1\",\n  \"volume\": \"2.1234\",\n  \"leverage\": \"2:1\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway.varchev.com/crypto/addOrder")

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

request = Net::HTTP::Post.new(url)
request["tenantId"] = '<tenantid>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"pair\": \"XXBTZUSD\",\n  \"type\": \"buy\",\n  \"ordertype\": \"limit\",\n  \"price\": \"45000.1\",\n  \"volume\": \"2.1234\",\n  \"leverage\": \"2:1\"\n}"

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

{
  "error": [],
  "result": {
    "descr": {
      "order": "buy 2.12340000 XBTUSD @ limit 45000.1 with 2:1 leverage",
      "close": "close position @ stop loss 38000.0 -> limit 36000.0"
    },
    "txid": [
      "OUF4EM-FRGI2-MQMWZD"
    ]
  }
}