curl --request POST \
  --url https://api.example.com/refunds/refund \
  --header 'ApiKey: <apikey>' \
  --header 'Content-Type: application/json' \
  --header 'Environment: <environment>' \
  --header 'MerchantId: <merchantid>' \
  --data '
{
  "id": "tr_R7xkvVd5gRfBCWQCYrWEt"
}
'

import requests

url = "https://api.example.com/refunds/refund"

payload = { "id": "tr_R7xkvVd5gRfBCWQCYrWEt" }
headers = {
    "MerchantId": "<merchantid>",
    "ApiKey": "<apikey>",
    "Environment": "<environment>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    MerchantId: '<merchantid>',
    ApiKey: '<apikey>',
    Environment: '<environment>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({id: 'tr_R7xkvVd5gRfBCWQCYrWEt'})
};

fetch('https://api.example.com/refunds/refund', 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/refunds/refund",
  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([
    'id' => 'tr_R7xkvVd5gRfBCWQCYrWEt'
  ]),
  CURLOPT_HTTPHEADER => [
    "ApiKey: <apikey>",
    "Content-Type: application/json",
    "Environment: <environment>",
    "MerchantId: <merchantid>"
  ],
]);

$response = curl_exec($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/refunds/refund"

	payload := strings.NewReader("{\n  \"id\": \"tr_R7xkvVd5gRfBCWQCYrWEt\"\n}")

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

	req.Header.Add("MerchantId", "<merchantid>")
	req.Header.Add("ApiKey", "<apikey>")
	req.Header.Add("Environment", "<environment>")
	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/refunds/refund")
  .header("MerchantId", "<merchantid>")
  .header("ApiKey", "<apikey>")
  .header("Environment", "<environment>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"tr_R7xkvVd5gRfBCWQCYrWEt\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/refunds/refund")

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

request = Net::HTTP::Post.new(url)
request["MerchantId"] = '<merchantid>'
request["ApiKey"] = '<apikey>'
request["Environment"] = '<environment>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"tr_R7xkvVd5gRfBCWQCYrWEt\"\n}"

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

{
  "id": 1
}

{
  "status": 400,
  "error": {
    "statusCode": 400,
    "message": [
      "destination.provider must be a string"
    ],
    "error": "Bad Request"
  }
}

{
  "status": 401,
  "error": {
    "type": "authorization_error",
    "code": "wrong_credentials",
    "message": "L'ID marchand et/ou la clé d'API sont incorrects."
  }
}

{
  "status": 403,
  "error": {
    "statusCode": 403,
    "message": "Forbidden",
    "error": "<string>"
  }
}

{
  "httpStatus": 404,
  "message": "X not found",
  "error": "Not found"
}

{
  "httpStatus": 409,
  "type": "invalid_request",
  "code": "unsupported_action",
  "message": "This action is not supported"
}

{
  "status": 429,
  "error": "ThrottlerException: Too Many Requests"
}

{
  "type": "internal_error",
  "code": [
    "internal_error",
    "wrong_credentials",
    "not_granted",
    "live_mode_not_granted"
  ],
  "message": "An error occurred on our system. Please try again later."
}