link_metadata #

A Flutter package for extracting Open Graph metadata, images, and favicons from URLs.

Features #

• Extract Open Graph tags (title, description, site name, image)
• Proxy support for flutter web

Installation #

dependencies:
  link_metadata: ^0.0.1

Usage #

import 'package:link_metadata/link_metadata.dart';

final analyzer = LinkAnalyzer();
final linkData = await analyzer.parseUrl('https://example.com');

print('Title: ${linkData?.title}');
print('Description: ${linkData?.description}');
// linkData.ogImage and linkData.favicon are Uint8List bytes

With proxy [for flutter web]:

final analyzer = LinkAnalyzer(
  proxyUri: Uri.parse('https://your-proxy.com/fetch?url='),
);

Note: If you use a proxy, it should accept a query parameter called url containing the original link you want to analyze. The proxy should return the HTML content of that link.

Custom HTML fetching:

final linkData = await analyzer.parseUrl(
  'https://example.com',
  getHtmlResponse: (uri) async => await customFetch(uri),
);

Custom image bytes fetching:

final linkData = await analyzer.parseUrl(
  'https://example.com',
  getImageBytesResponse: (uri) async => await customImageFetch(uri),
);

Both custom HTML and image fetching:

final linkData = await analyzer.parseUrl(
  'https://example.com',
  getHtmlResponse: (uri) async => await customFetch(uri),
  getImageBytesResponse: (uri) async => await customImageFetch(uri),
);