curl --request POST \
  --url https://20b9-41-90-209-232.ngrok-free.app/v1/ping \
  --header 'Authorization: Bearer <token>'

const url = 'https://20b9-41-90-209-232.ngrok-free.app/v1/ping';
const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests

url = "https://20b9-41-90-209-232.ngrok-free.app/v1/ping"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

package main

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

func main() {

	url := "https://20b9-41-90-209-232.ngrok-free.app/v1/ping"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "object": "event",
  "type": "event.ping",
  "created": 123,
  "livemode": true,
  "data": {},
  "environment": "live"
}

{
  "error": {
    "type": "authentication_error",
    "code": "invalid_api_key",
    "message": "Invalid API key provided."
  }
}