How to create a webhook url

import logo from './logo.svg';
import './App.css';
import './configs/firebase';
import axios from 'axios';
import { useLocation, useSearchParams } from "react-router-dom";
import React, { useState, useEffect } from "react";

function App() {
  const [status, setStatus] = useState("");

  const queryParams = new URLSearchParams(window.location.search)
  const queryString = queryParams.get("external_id");

  var config = {
    method: 'get',
    url: `https://us-central1-appgregator.cloudfunctions.net/flipSandbox/disbursement/${queryString}?name=ft-4&connection_name=flip-entre-1`,
    headers: { 
      'x-api-key': 'U2Fsd...'
    }
  };  

  axios(config)
  .then(function (results) {
    //update your database
    setStatus(results.data.status);
    console.log(JSON.stringify(results.data));
  })
  .catch(function (error) {
    console.log(error.response.data.errors,'errors');
  });
  
  

  return (
    <div className="App">
      <header className="App-header">
        <img src={logo} className="App-logo" alt="logo" />
        <p>
          
        </p>
        <a
          className="App-link"
          href="https://reactjs.org"
          target="_blank"
          rel="noopener noreferrer"
        >
          PAYMENT {status}
        </a>
      </header>
    </div>
  );
}

export default App;