React Download PDF from API

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8" />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
</head>
<body>
  <div id="app"></div>
  <script type="text/babel">
    function App() {
      const [url, setUrl] = React.useState('https://www.sarkarinaukriexams.com/images/post/1614258834up_si_syllabus_pdf_in_hindi.pdf');
      const downloadFile = () => {
        axios({
          url,
          method: 'GET',
          responseType: 'blob',
        }).then(response => {
          const url = window.URL.createObjectURL(new Blob([response.data]));
          const link = document.createElement('a');
          link.href = url;
          link.setAttribute('download', 'syallbus.pdf');
          document.body.appendChild(link);
          link.click();
        });
      };

ReactDOM.render(<App />, document.getElementById("app"));
  </script>

/* Title */
    .title {
      font-size: 24px;
      margin: 20px 0;
      color: #333;
      text-decoration: underline;
    }

/* Input */
    .input {
      width: 100%;
      padding: 10px;
      font-size: 16px;
      border: 2px solid #333;
      border-radius: 5px;
      margin: 10px 0;
      transition: border-color 0.3s ease;
      box-sizing: border-box;
    }

.input::placeholder {
      color: #999;
    }

.input:focus {
      border-color: #007BFF;
    }

/* Button */
    .button {
      padding: 10px 20px;
      font-size: 18px;
      background-color: #007BFF;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

.button:hover {
      background-color: #0056b3;
    }
  </style>
</body>

</html>