CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "GET");
curl_easy_setopt(hnd, CURLOPT_URL, "{{baseUrl}}/proxy");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "correlation_id: ");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

CURLcode ret = curl_easy_perform(hnd);

(require '[clj-http.client :as client])

(client/get "{{baseUrl}}/proxy" {:headers {:correlation_id ""}})

require "http/client"

url = "{{baseUrl}}/proxy"
headers = HTTP::Headers{
  "correlation_id" => ""
}

response = HTTP::Client.get url, headers: headers
puts response.body

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
    Method = HttpMethod.Get,
    RequestUri = new Uri("{{baseUrl}}/proxy"),
    Headers =
    {
        { "correlation_id", "" },
    },
};
using (var response = await client.SendAsync(request))
{
    response.EnsureSuccessStatusCode();
    var body = await response.Content.ReadAsStringAsync();
    Console.WriteLine(body);
}

var client = new RestClient("{{baseUrl}}/proxy");
var request = new RestRequest("", Method.Get);
request.AddHeader("correlation_id", "");
var response = client.Execute(request);

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "{{baseUrl}}/proxy"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("correlation_id", "")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}

GET /baseUrl/proxy HTTP/1.1
Correlation_id: 
Host: example.com

AsyncHttpClient client = new DefaultAsyncHttpClient();
client.prepare("GET", "{{baseUrl}}/proxy")
  .setHeader("correlation_id", "")
  .execute()
  .toCompletableFuture()
  .thenAccept(System.out::println)
  .join();

client.close();

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("{{baseUrl}}/proxy"))
    .header("correlation_id", "")
    .method("GET", HttpRequest.BodyPublishers.noBody())
    .build();
HttpResponse response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("{{baseUrl}}/proxy")
  .get()
  .addHeader("correlation_id", "")
  .build();

Response response = client.newCall(request).execute();

HttpResponse response = Unirest.get("{{baseUrl}}/proxy")
  .header("correlation_id", "")
  .asString();

const data = null;

const xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener('readystatechange', function () {
  if (this.readyState === this.DONE) {
    console.log(this.responseText);
  }
});

xhr.open('GET', '{{baseUrl}}/proxy');
xhr.setRequestHeader('correlation_id', '');

xhr.send(data);

import axios from 'axios';

const options = {
  method: 'GET',
  url: '{{baseUrl}}/proxy',
  headers: {correlation_id: ''}
};

try {
  const { data } = await axios.request(options);
  console.log(data);
} catch (error) {
  console.error(error);
}

const url = '{{baseUrl}}/proxy';
const options = {method: 'GET', headers: {correlation_id: ''}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

const settings = {
  async: true,
  crossDomain: true,
  url: '{{baseUrl}}/proxy',
  method: 'GET',
  headers: {
    correlation_id: ''
  }
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

val client = OkHttpClient()

val request = Request.Builder()
  .url("{{baseUrl}}/proxy")
  .get()
  .addHeader("correlation_id", "")
  .build()

val response = client.newCall(request).execute()

const http = require('https');

const options = {
  method: 'GET',
  hostname: 'example.com',
  port: null,
  path: '/baseUrl/proxy',
  headers: {
    correlation_id: ''
  }
};

const req = http.request(options, function (res) {
  const chunks = [];

  res.on('data', function (chunk) {
    chunks.push(chunk);
  });

  res.on('end', function () {
    const body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.end();

const request = require('request');

const options = {
  method: 'GET',
  url: '{{baseUrl}}/proxy',
  headers: {correlation_id: ''}
};

request(options, function (error, response, body) {
  if (error) throw new Error(error);

  console.log(body);
});

const unirest = require('unirest');

const req = unirest('GET', '{{baseUrl}}/proxy');

req.headers({
  correlation_id: ''
});

req.end(function (res) {
  if (res.error) throw new Error(res.error);

  console.log(res.body);
});

const axios = require('axios').default;

const options = {
  method: 'GET',
  url: '{{baseUrl}}/proxy',
  headers: {correlation_id: ''}
};

try {
  const { data } = await axios.request(options);
  console.log(data);
} catch (error) {
  console.error(error);
}

const fetch = require('node-fetch');

const url = '{{baseUrl}}/proxy';
const options = {method: 'GET', headers: {correlation_id: ''}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

#import 

NSDictionary *headers = @{ @"correlation_id": @"" };

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"{{baseUrl}}/proxy"]
                                                       cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                   timeoutInterval:10.0];
[request setHTTPMethod:@"GET"];
[request setAllHTTPHeaderFields:headers];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                            completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                                if (error) {
                                                    NSLog(@"%@", error);
                                                } else {
                                                    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
                                                    NSLog(@"%@", httpResponse);
                                                }
                                            }];
[dataTask resume];

open Cohttp_lwt_unix
open Cohttp
open Lwt

let uri = Uri.of_string "{{baseUrl}}/proxy" in
let headers = Header.add (Header.init ()) "correlation_id" "" in

Client.call ~headers `GET uri
>>= fun (res, body_stream) ->
  (* Do stuff with the result *)

 "{{baseUrl}}/proxy",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "correlation_id: "
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

request('GET', '{{baseUrl}}/proxy', [
  'headers' => [
    'correlation_id' => '',
  ],
]);

echo $response->getBody();

setUrl('{{baseUrl}}/proxy');
$request->setMethod(HTTP_METH_GET);

$request->setHeaders([
  'correlation_id' => ''
]);

try {
  $response = $request->send();

  echo $response->getBody();
} catch (HttpException $ex) {
  echo $ex;
}

setRequestUrl('{{baseUrl}}/proxy');
$request->setRequestMethod('GET');
$request->setHeaders([
  'correlation_id' => ''
]);

$client->enqueue($request)->send();
$response = $client->getResponse();

echo $response->getBody();

$headers=@{}
$headers.Add("correlation_id", "")
$response = Invoke-WebRequest -Uri '{{baseUrl}}/proxy' -Method GET -Headers $headers

$headers=@{}
$headers.Add("correlation_id", "")
$response = Invoke-RestMethod -Uri '{{baseUrl}}/proxy' -Method GET -Headers $headers

import http.client

conn = http.client.HTTPSConnection("example.com")

headers = { 'correlation_id': "" }

conn.request("GET", "/baseUrl/proxy", headers=headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

import requests

url = "{{baseUrl}}/proxy"

headers = {"correlation_id": ""}

response = requests.get(url, headers=headers)

print(response.json())

library(httr)

url <- "{{baseUrl}}/proxy"

response <- VERB("GET", url, add_headers('correlation_id' = ''), content_type("application/octet-stream"))

content(response, "text")

require 'uri'
require 'net/http'

url = URI("{{baseUrl}}/proxy")

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

request = Net::HTTP::Get.new(url)
request["correlation_id"] = ''

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

require 'faraday'

conn = Faraday.new(
  url: 'https://example.com',
)

response = conn.get('/baseUrl/proxy') do |req|
  req.headers['correlation_id'] = ''
end

puts response.status
puts response.body

use reqwest;

#[tokio::main]
pub async fn main() {
    let url = "{{baseUrl}}/proxy";

    let mut headers = reqwest::header::HeaderMap::new();
    headers.insert("correlation_id", "".parse().unwrap());

    let client = reqwest::Client::new();
    let response = client.get(url)
        .headers(headers)
        .send()
        .await;

    let results = response.unwrap()
        .json::()
        .await
        .unwrap();

    dbg!(results);
}

http GET {{baseUrl}}/proxy \
  correlation_id:''

wget --quiet \
  --method GET \
  --header 'correlation_id: ' \
  --output-document \
  - {{baseUrl}}/proxy

import Foundation

let headers = ["correlation_id": ""]

let request = NSMutableURLRequest(url: NSURL(string: "{{baseUrl}}/proxy")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()