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    binary-base64

    1.1.0 • Public • Published

    binary-base64

    This is a base64 encoding/decoding library.

    Install

    $ npm install binary-base64 --save

    Usage

    import base64 from 'binary-base64';
     
    async function getDataUri(uri) {
      const response = await fetch(uri);
      const buffer = new Uint8Array(await response.arrayBuffer());
      const type = response.headers.get('content-type');
      return `data:${type};base64,${base64.encode(buffer)}`;
    }
     
    function getBlobFromDataUri(uri) {
      return new Promise(function(resolve, reject) {
        const [ , type, base64EncodedString ] = uri.match('data:([^;]+);base64,(.+)') || [];
        if (typeof type === 'undefined' && typeof base64EncodedString === 'undefined') {
          return reject(new TypeError('Invalid data URI.'));
        }
        return resolve(new Blob([base64.decode(base64EncodedString)], { type }));
      });
    }
     
    (async function() {
      const dataUri = await getDataUri('https://www.gravatar.com/avatar/b9025074d487cd0328f1dc816e5ac50a.jpg');
      console.log(dataUri);
      const blob = await getBlobFromDataUri(dataUri);
      console.log(URL.createObjectURL(blob));
    })();

    Install

    npm i binary-base64

    DownloadsWeekly Downloads

    97

    Version

    1.1.0

    License

    MIT

    Last publish

    Collaborators

    • ykzts