Dart
Example: Http.ExtractMetaRefreshUrl method

Demonstrates the ExtractMetaRefreshUrl method.
Chilkat Dart Downloads

Dart
import 'package:chilkat/chilkat.dart';

void main() {
  final http = CkHttp();

  // Sample HTML with a META refresh.

  // <!DOCTYPE html>
  // <html lang="en">
  // <head>
  //   <meta charset="utf-8" />
  //   <meta http-equiv="refresh" content="5; url=https://example.com" />
  //   <title>Meta Refresh Redirect</title>
  // </head>
  // <body>
  //   <p>Redirecting to example.com in 5 seconds�</p>
  // </body>
  // </html>

  final sb = CkStringBuilder();
  final bCrlf = true;
  sb.appendLine('<!DOCTYPE html>', bCrlf);
  sb.appendLine('<html lang="en">', bCrlf);
  sb.appendLine('<head>', bCrlf);
  sb.appendLine('  <meta charset="utf-8" />', bCrlf);
  sb.appendLine('  <meta http-equiv="refresh" content="5; url=https://example.com" />', bCrlf);
  sb.appendLine('  <title>Meta Refresh Redirect</title>', bCrlf);
  sb.appendLine('</head>', bCrlf);
  sb.appendLine('<body>', bCrlf);
  sb.appendLine('  <p>Redirecting to example.com in 5 seconds�</p>', bCrlf);
  sb.appendLine('</body>', bCrlf);
  sb.appendLine('</html>', bCrlf);

  try {
    final url = http.extractMetaRefreshUrl(sb.getAsString());
    print('META refresh URL: $url');
  } on ChilkatException {
    print('The HTML has no META refresh tag.');
  }
}