GeoJSON Layer (GeoJSON)

The GeoJSON layer type references a GeoJSON file from a publicly-accessible web server. It then dynamically loads into the scene at run time. The GeoJSON layer will maintain a reference to the GeoJSON resource.

Referenced by: operationalLayers

Properties

Property	Details
customParameters	A sequence of custom parameters appended to the URL of all requests related to a layer.
disablePopup	Indicates whether to allow a client to ignore popups defined by the service item.
id	A unique identifying string for the layer.
itemId	Optional string containing the item ID if it's registered on ArcGIS Online or your organization's portal.
layerDefinition	Additional properties that define drawing information and other configurations for the layer. See layerDefinition properties table.
layerType	String indicating the layer type. Valid value of this property GeoJSON
listMode	To show or hide layers in the layer list Valid values: hide show
maxScale	A number representing the maximum scale at which the layer will be visible. The number is the scale's denominator.
minScale	A number representing the minimum scale at which the layer will be visible. The number is the scale's denominator.
opacity	The degree of transparency applied to the layer on the client side, where 0 is full transparency and 1 is no transparency.
popupInfo	A popupInfo object defining the content of popup windows when you click or query a feature.
refreshInterval	Refresh interval of the layer in minutes. Non-zero value indicates automatic layer refresh at the specified interval. Value of 0 indicates auto refresh is not enabled.
screenSizePerspective	Apply perspective scaling to screen-size symbols.
showLabels	Labels will display if this property is set to true and the layer also has a labelingInfo property associated with it. This property can get stored in the web scene config.
showLegend	Boolean value indicating whether to display the layer in the legend. Default value is true.
title	A user-friendly string title for the layer that can be used in a table of contents.
url	The URL to the layer.
visibility	Boolean property determining whether the layer is initially visible in the web scene.

layerDefinition properties

Property	Details
definitionExpression	SQL-based definition expression string that narrows the data to be displayed in the layer.
drawingInfo.labelingInfo[]	An array of labelingInfo objects.
drawingInfo.renderer	The renderer object contains the drawing information for the operationalLayer.
elevationInfo	Elevation info defines how features are aligned to ground or other layers.
featureReduction	An object that specifies how features are reduced or aggregated, with the goal of decluttering the view or presenting the user with an aggregate visualization.
fields[]	An array of field objects containing information about the attribute fields for the feature collection or layer.
objectIdField	Indicates the name of the object ID field in the dataset.

geojson Layer Example

{
  "id": "geojson_1234",
  "layerType": "GeoJSON",
  "title": "Earthquakes",
  "visibility": true,
  "opacity": 1,
  "url": "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/significant_week.geojson"
}