Example of a json fixture

layers-only.json

{
  "layers":[
		{
            "id": "RedFlagWarnings",
            "url": "http://svinetfc3.fs.fed.us/ArcGIS_NPSG/rest/services/NPSG/Fire_Watches_Warnings/MapServer",
            "visibleLayers": [1],
            "visible": true,
            "opacity": 0.8
        },
        {
            "id": "MODISThermal",
            "url": "http://wildfire.cr.usgs.gov/ArcGIS/rest/services/geomac_dyn/MapServer",
            "visibleLayers": [2],
            "visible": true,
            "opacity": 0.8
        }
	]
}