image-data-uri
v2.0.1
Published
Library to easily decode/encode Data URI images
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Image Data URI
Library to easily decode/encode Data URI images
Installation
npm install image-data-uri
CLI
npm install image-data-uri -g
npx image-data-uri --help
Methods
- decode(dataURI)
imageDataURI.decode('data:image/png;base64,SOMEPNGDATAURI/wD/')
// RETURNS
{
imageType: 'image/png',
dataBase64: 'SOMEPNGDATAURI/wD/',
dataBuffer: <Buffer 89 50 4e 47 0d 0a ...>
}
- encode(data, mediaType)
// Expects a Buffer of a image file
let dataBuffer = new Buffer(imageData);
// PNG | GIF | etc.
let mediaType = 'PNG';
// RETURNS :: image data URI :: 'data:image/png;base64,PNGDATAURI/wD/'
imageDataURI.encode(dataBuffer, mediaType)
- encodeFromURL(imageURL)
// Returns a Promise
imageDataURI.encodeFromURL('http://www.some-site.com/some-image.png')
// RETURNS image data URI :: 'data:image/png;base64,PNGDATAURI/'
.then(res => console.log(res))
- encodeFromFile(filePath)
// Returns a Promise
imageDataURI.encodeFromFile('./some-file.png')
// RETURNS image data URI :: 'data:image/png;base64,PNGDATAURI/'
.then(res => console.log(res))
- outputFile(dataURI, filePath)
// Some image data uri
let dataURI = 'data:image/png;base64,PNGDATAURI/';
// It will create the full path in case it doesn't exist
// If the extension is defined (e.g. fileName.png), it will be preserved, otherwise the lib will try to guess from the Data URI
let filePath = './out/path/fileName';
// Returns a Promise
imageDataURI.outputFile(dataURI, filePath)
// RETURNS image path of the created file 'out/path/fileName.png'
.then(res => console.log(res))