tilestrata-merge

A TileStrata plugin allowing tiles from multiple layers to be merged with custom logic.

Example

var merge = require('tilestrata-merge');

var layer = server.layer('merged-layer', {minZoom: 5, maxZoom: 14});

// .../merged-layer/tile.pbf
layer
  .route('tile.pbf')
    .use(headers({
      'Access-Control-Allow-Origin': '*'
    }))
    .use(merge({
      contentType: 'application/x-protobuf',
      layers: [
         ['layer-1', 't.pbf'],
         ['layer-2', 't.pbf']
	  ]
      merge: function(buffers) {
        return Buffer.concat(buffers);
      }
    }));