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Description

FastImage finds the size or type of an image given its URL by fetching as little as needed.

Code Quality Rank: L4
Monthly Downloads: 0
Programming language: TypeScript
License: ISC License
Tags: Image Processing     SVG     Height     Fast     Image     Image Discovery     Web Crawling     Image Size     webp     tiff     psd     gif     bmp     jpeg     png     width     resolution     dimensions     size     fastimage    
Latest version: v2.0.1

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README

fastimage

Package Version Dependency Status Build Status Coverage Status

FastImage finds the size or type of an image given its URL by fetching as little as needed.

http://sw.cowtech.it/fastimage

The supported image type are (thanks to the image-size module):

  • BMP
  • GIF
  • JPEG
  • PNG
  • PSD
  • TIFF
  • WebP
  • SVG

Supported implementations.

FastImage supports and has been tested on NodeJS 5.0+.

Usage

For more details usage examples, see the examples folder.

Callback style

To get the image informations, call fastimage.info passing the URL (can be also a local file path or a Buffer) and a callback.

var fastimage = require("fastimage");
fastimage.info("http://placehold.it/100x100", function(error, information){
  if(error){
    // ...
  else{
    // ...
  }
});

For the details about the second parameter of the callback, see fastimage.info, fastimage.size and fastimage.type.

Promise style

All the fastime image methods info, filteredInfo, size and type return a Promise. Once resolved, the promises have the same payload of the callbacks.

var fastimage = require("fastimage");

fastimage.info("http://placehold.it/100x100")
  .then(function(info){
    // ...
  })
  .catch(function(error){
    // ...
  });

Stream style

If you want to go The Node.js Way, you can use the streaming API.

Calling fastimage.stream it will return a Duplex stream object. Called without arguments, it's ideal for piping. Otherwise, you can use only it's readable side.

// Duplex
request("http://placehold.it/100x100.png").pipe(fastimage.stream()).pipe(/*...*/);

// Readable
fastimage.stream("http://placehold.it/100x100.png").pipe(/*...*/);

Streams will emit the size and type if you only need those informations.

API Documentation

The API documentation can be found here.

Contributing to fastimage

  • Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
  • Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
  • Fork the project.
  • Start a feature/bugfix branch.
  • Commit and push until you are happy with your contribution.
  • Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.

Copyright (C) 2015 and above Shogun ([email protected]).

Licensed under the MIT license, which can be found at https://choosealicense.com/licenses/mit.


*Note that all licence references and agreements mentioned in the fastimage README section above are relevant to that project's source code only.