mime_type 0.3.2

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  • Changelog
  • Installing
  • 93

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();
  } else {
    // send 404 (Not Found) status to the client

License #

This library is licensed under MIT License.

Changelog #

0.3.2 #

  • Hashmap speedup and updated types.

0.3.1 #

  • Check null or empty filename to avoid crash.

0.3.0 #

  • Added extensionFromMime function to get an extension given a mime type.

0.2.7 #

  • Support for High Efficiency Video Coding

0.2.6 #

  • Support for High Efficiency Image File Format

0.2.5 #

  • avoid to give false result for JPG files

0.2.4 #

  • prepare for Uint8List SDK breaking change

0.2.3 #

  • forward compatible change in test/apache-types_includer.dart for upcoming SDK change

0.2.2 #

  • add dart environment information

0.2.1 #

  • Type woff2 added.

0.2.0 #

  • Included Apache-types.
  • Changed MIME type for extension 'dart' from 'application/dart' to 'application/vnd.dart'.

0.1.1 to 0.1.7 #

  • Several types added.

0.1.0 #

  • First publishing.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  mime_type: ^0.3.2

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:mime_type/mime_type.dart';
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Learn more about scoring.

We analyzed this package on Jul 2, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.13

Health issues and suggestions

Document public APIs. (-1 points)

4 out of 4 API elements have no dartdoc comment.Providing good documentation for libraries, classes, functions, and other API elements improves code readability and helps developers find and use your API.

Maintenance suggestions

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and mime_type.dart. Packages with multiple examples should provide example/README.md.

For more information see the pub package layout conventions.

The package description is too short. (-8 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=0.8.10 <3.0.0