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data-uri-to-buffer

Generate a Buffer instance from a Data URI string

This module accepts a "data" URI String of data, and returns a node.js Buffer instance with the decoded data.

Installation

Install with npm:

$ npm install data-uri-to-buffer

Example

var dataUriToBuffer = require('data-uri-to-buffer');

// plain-text data is supported
var uri = 'data:,Hello%2C%20World!';
var decoded = dataUriToBuffer(uri);
console.log(decoded.toString());
// 'Hello, World!'

// base64-encoded data is supported
uri = 'data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D';
decoded = dataUriToBuffer(uri);
console.log(decoded.toString());
// 'Hello, World!'

API

dataUriToBuffer(String uri) → Buffer

The type property on the Buffer instance gets set to the main type portion of the "mediatype" portion of the "data" URI, or defaults to "text/plain" if not specified.

The typeFull property on the Buffer instance gets set to the entire "mediatype" portion of the "data" URI (including all parameters), or defaults to "text/plain;charset=US-ASCII" if not specified.

The charset property on the Buffer instance gets set to the Charset portion of the "mediatype" portion of the "data" URI, or defaults to "US-ASCII" if the entire type is not specified, or defaults to "" otherwise.

Note: If the only the main type is specified but not the charset, e.g. "data:text/plain,abc", the charset is set to the empty string. The spec only defaults to US-ASCII as charset if the entire type is not specified.

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md