Leaflet JSON Layer

Simple way for transform any JSON data source in a Leaflet Layer!

A Dynamic Leaflet Layer that load JSON data in layer in the form of markers with attributes

and minimize remote requests with caching system

Tested in Leaflet 0.7 and 1.1

Options

Option	Data	Description
url	String	remote url
jsonpParam	String	callback parameter name for jsonp request append to url
jsonpParam	String	callback parameter name for jsonp request append to url
callData	String	custom function for data source, params: (req: url
Filtering
propertyItems	String	json property used contains data items
propertyLoc	String	json property used as Latlng of marker, if is array: ['lat','lon'] select double fields
locAsGeoJSON	String	interpret location data as [lon, lat] value pair instead of [lat, lon]
propertyTitle	String	json property used as title in marker
filterData	String	function for pre-filter data
Rendering
dataToMarker	String	function that will be used for creating markers from json points
onEachMarker	String	function called on each marker created, similar to option onEachFeature of L.GeoJSON
layerTarget	String	pre-existing layer to add markers(L.LayerGroup, L.MarkerClusterGroup)
buildPopup	String	function popup builder
optsPopup	String	popup options
buildIcon	String	function icon builder
Caching
minShift	String	min shift for update data(in meters)
precision	String	number of digit send to server for lat,lng precision
updateOutBounds	String	request new data only if current bounds higher than last bounds

Event	Data	Description
'dataloading'	{req: url	bbox}
'dataloaded'	{data: json}	fired on ajax/jsonp request success

var l = new L.LayerJSON({url: "search.php?lat1={lat1}&lat2={lat2}&lon1={lon1}&lon2={lon2}" });
map.addLayer(l);

Demos:

http://labs.easyblog.it/maps/leaflet-layerjson

Source:

Github
Bitbucket
NPM
Atmosphere

This plugin support Grunt for building process. Therefore the deployment require NPM installed in your system.

After you've made sure to have npm working, run this in command line:

npm install
grunt