Node module that returns a spatial filetype and protocol.

File types:

• Zipped shapefile: zip
• Unziped shapefile: shp
• GPX: gpx
• KML: kml
• GeoJSON: geojson
• GeoTIFF: tif
• Zipped GeoTIFF: tif
• Mbtiles: mbtiles
• TileJSON: tilejson
• Serialtiles: serialtiles
• tm2z: tm2z
• csv: csv

Protocols (matching tilelive protocols):

• omnivore: tilelive-omnivore
• mbtiles: node-mbtiles
• tilejson: node-tilejson
• serialtiles: special case
• tm2z: tilelive-vector

With npm:

npm install @mapbox/mapbox-file-sniff

var sniffer = require('@mapbox/mapbox-file-sniff');

fromBuffer(Buffer) - Sniff a file from a buffer.

var buffer = fs.readFileSync('path/to/data/file.geojson');
sniffer.fromBuffer(buffer, function(err, info) {
	if (err) throw err;
	console.log(info);
	// {
	//   protocol: 'omnivore:',
	//   type: 'geojson'
	// }
});

fromFile(String) - Sniff a file from a file path.

var file = './path/to/data/file.geojson';
sniffer.fromFile(file, function(err, info) {
	if (err) throw err;
	console.log(info);
	// {
	//   protocol: 'omnivore:',
	//   type: 'geojson'
	// }
});

$ mapbox-file-sniff path/to/data/file.geojson
# {"protocol":"omnivore:","type":"geojson"}
$ mapbox-file-sniff path/to/data/file.geojson --type
# geojson
$ mapbox-file-sniff path/to/data/file.geojson --protocol
# omnivore:

Full test suite:

npm test