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MIME type library for Dart HTTP server applications.

MIME type #

Library to get MIME type from a file name or a file path and get the file extension from a MIME type. When a HTTP server sends a file to the client, MIME type of the file must be set to the Content-Type header of the response.

Only three methods are available:

  • String mime(String FileName) // gets the MIME type from a file name (such as 'Hello.dart') or a file path (such as '..\Hello.dart').

  • String mimeFromExtension(String extension) // gets the MIME type from an extension (such as 'dart')

  • String extensionFromMime(String mime) // gets extension from MIME type (returns null if there is no such mime type)

All methods return null if they cannot find a match.

Example #

import 'package:mime_type/mime_type.dart';

sendFile(HttpRequest request, String fileName) {
  HttpResponse response = request.response;
  File file = new File(fileName);
  if (file.existsSync()) {
    String mimeType = mime(fileName);
    if (mimeType == null) mimeType = 'text/plain; charset=UTF-8';
      // you can change the default content type
      // or, you can choose to send error message
    response.headers.set('Content-Type', mimeType);
    RandomAccessFile openedFile = file.openSync();
    response.contentLength = openedFile.lengthSync();
    openedFile.closeSync();
    file.openRead().pipe(response);
  } else {
    // send 404 (Not Found) status to the client
  }
}

License #

This library is licensed under MIT License.

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MIME type library for Dart HTTP server applications.

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License

MIT (license)

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