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Description:

mime type

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
}
}
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License #
This library is licensed under MIT License.