curl --request POST \
  --url http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "message": "<string>",
  "private": true
}
'

import requests

url = "http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes"

payload = {
    "message": "<string>",
    "private": True
}
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({message: '<string>', private: true})
};

fetch('http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes', 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 => "http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes",
  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([
    'message' => '<string>',
    'private' => true
  ]),
  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 := "http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes"

	payload := strings.NewReader("{\n  \"message\": \"<string>\",\n  \"private\": true\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("http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"message\": \"<string>\",\n  \"private\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("http://investigations.{region}.alienvault.cloud/investigations/v3/investigations/{investigationId}/notes")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"message\": \"<string>\",\n  \"private\": true\n}"

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

{
  "_links": {
    "self": {
      "href": "https://svc.alienvault.cloud/investigations/v3/investigations/2033c597-97d2-49f4-b3b6-c9079d46c0f2/notes/bc1c5197-c195-49a6-b3df-9662b8684dce"
    }
  },
  "id": "bc1c5197-c195-49a6-b3df-9662b8684dce",
  "message": "The user must have clicked the wrong button.",
  "private": true,
  "created": {
    "by": "ace@some.mssp.com",
    "on": "2018-11-07T17:02:42.981Z"
  },
  "lastModified": {
    "by": "updater@alienvault.com",
    "on": "2018-11-07T17:03:02.981Z"
  }
}

{
  "errorId": "<string>",
  "message": "<string>",
  "variables": [
    "<string>"
  ],
  "errorUrl": "<string>"
}