curl --request POST \
  --url https://api.streamskill.pro/v1/purchases/create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "tarif": {
    "id": 1,
    "quantity": 1000,
    "duration": 24
  },
  "channel": "twitch",
  "interval": 10,
  "lang": "en",
  "comment": "Test comment",
  "start": false
}
'

import requests

url = "https://api.streamskill.pro/v1/purchases/create"

payload = {
    "tarif": {
        "id": 1,
        "quantity": 1000,
        "duration": 24
    },
    "channel": "twitch",
    "interval": 10,
    "lang": "en",
    "comment": "Test comment",
    "start": False
}
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({
    tarif: {id: 1, quantity: 1000, duration: 24},
    channel: 'twitch',
    interval: 10,
    lang: 'en',
    comment: 'Test comment',
    start: false
  })
};

fetch('https://api.streamskill.pro/v1/purchases/create', 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.streamskill.pro/v1/purchases/create",
  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([
    'tarif' => [
        'id' => 1,
        'quantity' => 1000,
        'duration' => 24
    ],
    'channel' => 'twitch',
    'interval' => 10,
    'lang' => 'en',
    'comment' => 'Test comment',
    'start' => false
  ]),
  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.streamskill.pro/v1/purchases/create"

	payload := strings.NewReader("{\n  \"tarif\": {\n    \"id\": 1,\n    \"quantity\": 1000,\n    \"duration\": 24\n  },\n  \"channel\": \"twitch\",\n  \"interval\": 10,\n  \"lang\": \"en\",\n  \"comment\": \"Test comment\",\n  \"start\": false\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.streamskill.pro/v1/purchases/create")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"tarif\": {\n    \"id\": 1,\n    \"quantity\": 1000,\n    \"duration\": 24\n  },\n  \"channel\": \"twitch\",\n  \"interval\": 10,\n  \"lang\": \"en\",\n  \"comment\": \"Test comment\",\n  \"start\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.streamskill.pro/v1/purchases/create")

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  \"tarif\": {\n    \"id\": 1,\n    \"quantity\": 1000,\n    \"duration\": 24\n  },\n  \"channel\": \"twitch\",\n  \"interval\": 10,\n  \"lang\": \"en\",\n  \"comment\": \"Test comment\",\n  \"start\": false\n}"

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

{
  "id": 1,
  "price": 10,
  "currency": "usd",
  "created_at": 1640000000,
  "order_type": "twitch_viewers",
  "channel": "https://www.twitch.tv/twitch",
  "status": "active",
  "service": "twitch",
  "parent": false,
  "api": true,
  "chatbot": false,
  "tarif": 1
}

{
  "error_code": "unauthorized",
  "name": "Your request was made with invalid credentials.",
  "message": "Your request was made with invalid credentials.",
  "code": 0,
  "status": 401,
  "type": "unauthorized_http_exception"
}

{
  "error_code": "validation_error",
  "name": "The Channel field is required.",
  "message": "The Channel field is required.",
  "code": 0,
  "status": 422,
  "type": "validate_exception",
  "errors": {
    "channel": [
      "The Channel field is required."
    ]
  }
}