Custom XMP-reader module

Extracts custom defined XMP/RDF metadata tags from image files.

xmp-reader (*NodeBuffer* buffer, *object* nsTagAndAttributeNames) : *object* tagAndAttributeProps

where the buffer is a file (like png) that has has xmp embedded. And the tagAndAttributeNames has the three properties: string ns, object tags, object attributes

If the xmp is wrongly formatted (ie. tag-names in sequence is not put inside proper envelopTag, the tags are parsed as attributes instead...)

Usage

To install the module add it to your project's package.json dependencies or install manually running:

npm install xmp-reader

Then pull it in your code:

const xmpReader = require('xmp-reader');

You can either feed it a buffer:

xmpReader.fromBuffer(buffer, tags, (err, data) => {
  if (err) console.log(err);
  else console.log(data);
});

Both methods above return a promise, you can use that instead of the callback:

xmpReader.fromBuffer(buffer).then(
  (data) => console.log(data),
  (err) => console.log(err)
);

Output will look something like that, depending on your metadata:

{
	"customTag1": "value",
	"customTag2": "value0",
	"keyword1": "value1",
	"keyword2": "value2",
	"raw": "<xmp...",
}

This module was derived from xmp-reader.