curl --request DELETE "https://rxresu.me/api/openapi/applications/<id>/contacts/<index>" --header "x-api-key: <api-key>" --header "Content-Type: application/json" --data '{
  "expectedVersion": "<string>"
}'

import requests

url = "https://rxresu.me/api/openapi/applications/{id}/contacts/{index}"

payload = { "expectedVersion": "<string>" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'DELETE',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({expectedVersion: '<string>'})
};

fetch('https://rxresu.me/api/openapi/applications/{id}/contacts/{index}', 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://rxresu.me/api/openapi/applications/{id}/contacts/{index}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "DELETE",
  CURLOPT_POSTFIELDS => json_encode([
    'expectedVersion' => '<string>'
  ]),
  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://rxresu.me/api/openapi/applications/{id}/contacts/{index}"

	payload := strings.NewReader("{\n  \"expectedVersion\": \"<string>\"\n}")

	req, _ := http.NewRequest("DELETE", 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.delete("https://rxresu.me/api/openapi/applications/{id}/contacts/{index}")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"expectedVersion\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://rxresu.me/api/openapi/applications/{id}/contacts/{index}")

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

request = Net::HTTP::Delete.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"expectedVersion\": \"<string>\"\n}"

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

{
  "defined": true,
  "code": "<string>",
  "status": 123,
  "message": "<string>",
  "data": "<unknown>"
}