Directions

The Directions Widget provides a way to build driving and walking directions using ArcGIS Online and custom Network Analysis Route services. Similar to how the RouteTask works, this widget generates a route finding a least-cost path between multiple points using a specified network. When searching for an address, the location of the points used to navigate depends on the locationType of the Search properties. The default value will be "street" for any locator source that does not define a locationType. The resulting directions are displayed with detailed turn-by-turn instructions.

The widget wraps pre-built search functionality directly within it so all you need to do is reference the widget within your application. The routing service defaults to the Esri World Route service. This is a subscription based service available through ArcGIS Online. You can use this default or specify your own ArcGIS Server route service. Please see the routeServiceUrl property.

The Clear route button calls the reset() method, which clears all the input stops and results in the widget and in the map.

Any types of customizations made to the underlying functionality of the widget should be handled via its viewModel property.

For information about gaining full control of widget styles, see the Styling topic.

See also:

Example:

var directionsWidget = new Directions({
  view: view
});
// Adds the Directions widget below other elements in
// the top right corner of the view
view.ui.add(directionsWidget, {
  position: "top-right",
  index: 2
});

Constructors

new Directions(properties)

Parameter:

properties Object

optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.

Show inherited properties

Hide inherited properties

Type	Summary	Class
String\|HTMLElement	The ID or node representing the DOM element containing the widget. more details	more details	Widget
String	The name of the class. more details	more details	Accessor
GoToOverride	This function provides the ability to override either the MapView goTo() or SceneView goTo() methods. more details	more details	Directions
String	The widget's default CSS icon class. more details	more details	Directions
String	The unique ID assigned to the widget when the widget is created. more details	more details	Widget
String	The widget's default label. more details	more details	Directions
Object	The most recent route result. more details	more details	Directions
Number	The maximum number of stops allowed for routing. more details	more details	Directions
String	The URL of the REST endpoint of the Route service. more details	more details	Directions
SimpleLineSymbol	Defines the symbol used to draw the route on the map. more details	more details	Directions
SearchProperties	Controls the default properties used when searching. more details	more details	Directions
Object	The default stop symbols used to display locations between the origin and final destination. more details	more details	Directions
MapView\|SceneView	The view from which the widget will operate. more details	more details	Directions
DirectionsViewModel	The view model for this widget. more details	more details	Directions

Property Details

container String|HTMLElement inherited

The ID or node representing the DOM element containing the widget. This property can only be set once. The following examples are all valid use cases when working with widgets.

Examples:

// Create the HTML div element programmatically at runtime and set to the widget's container
const basemapGallery = new BasemapGallery({
  view: view,
  container: document.createElement("div")
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

// Specify an already-defined HTML div element in the widget's container

const basemapGallery = new BasemapGallery({
  view: view,
  container: basemapGalleryDiv
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

// HTML markup
<body>
  <div id="viewDiv"></div>
  <div id="basemapGalleryDiv"></div>
</body>

// Specify the widget while adding to the view's UI
const basemapGallery = new BasemapGallery({
  view: view
});

// Add the widget to the top-right corner of the view
view.ui.add(basemapGallery, {
  position: "top-right"
});

declaredClass Stringreadonly inherited Since: ArcGIS API for JavaScript 4.7

The name of the class. The declared class name is formatted as esri.folder.className.

goToOverride GoToOverride Since: ArcGIS API for JavaScript 4.8

This function provides the ability to override either the MapView goTo() or SceneView goTo() methods.

See also:

Example:

// The following snippet uses the Search widget but can be applied to any
// widgets that support the goToOverride property.
search.goToOverride = function(view, goToParams) {
  goToParams.options.duration = updatedDuration;
  return view.goTo(goToParams.target, goToParams.options);
};

iconClass String Since: ArcGIS API for JavaScript 4.7

The widget's default CSS icon class.

id String inherited

The unique ID assigned to the widget when the widget is created. If not set by the developer, it will default to the container ID, or if that is not present then it will be automatically generated.

label String Since: ArcGIS API for JavaScript 4.7

The widget's default label.

lastRoute Objectreadonly Since: ArcGIS API for JavaScript 4.12

The most recent route result. Returns an object containing properties for any barriers used when generating the route, messages that may arise when solving the route, and finally an array of returned RouteResults.

Properties:

barriers Graphic []

Array of graphics representing the point barriers. For a list of properties returned for each barrier, see the barriers help documentation.

messages Object []

An array of messages serialized to JSON.

Specification:

description String

A descriptive message of the returned mesage.

type Number

Number indicating the message type returned from the service. This number correlates to one of the possible values listed below.

Number	Value
0	informative
1	process-definition
2	process-start
3	process-stop
50	warning
100	error
101	empty
200	abort

polygonBarriers Graphic []

Array of graphics representing the polygon barriers. For a list of properties returned for each barrier, see the barriers help documentation.

polylineBarriers Graphic []

Array of graphics representing the polygon barriers. For a list of properties returned for each barrier, see the barriers help documentation.

routeResults RouteResult

An array of RouteResults.

Default Value:null

maxStops Number

The maximum number of stops allowed for routing.

Default Value:50

routeServiceUrl Stringautocast

The URL of the REST endpoint of the Route service.

Default Value:"https://route.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World"

routeSymbol SimpleLineSymbol

Defines the symbol used to draw the route on the map.

searchProperties SearchProperties

Controls the default properties used when searching. Note that the default searchProperties differ slightly from the Search widget.

Default Value:null

stopSymbols Object

The default stop symbols used to display locations between the origin and final destination.

Properties:

first Symbol

optional

The first stop symbol.

middle Symbol

optional

The middle stop symbol.

last Symbol

optional

The last stop symbol.

unlocated Symbol

optional

An unlocated stop symbol.

waypoint Symbol

optional

A waypoint stop symbol.

view MapView|SceneView

The view from which the widget will operate.

viewModel DirectionsViewModelautocast

The view model for this widget. This is a class that contains all the logic (properties and methods) that controls this widget's behavior. See the DirectionsViewModel class to access all properties and methods on the widget.

Method Overview

Show inherited methods

Hide inherited methods

Return Type	Summary	Class
String	A utility method used for building the value for a widget's `class` property. more details	more details	Widget
	Destroys the widget instance. more details	more details	Widget
Boolean	Emits an event on the instance. more details	more details	Widget
Promise<RouteResult>	Calculate the route to the input locations and display the list of directions. more details	more details	Directions
Boolean	Indicates whether there is an event listener on the instance that matches the provided event name. more details	more details	Widget
Object	Registers an event handler on the instance. more details	more details	Widget
	Widget teardown helper. more details	more details	Widget
	This method is primarily used by developers when implementing custom widgets. more details	more details	Widget
Object	This method is primarily used by developers when implementing custom widgets. more details	more details	Widget
	Renders widget to the DOM immediately. more details	more details	Widget
	This method is primarily used by developers when implementing custom widgets. more details	more details	Widget
	Zoom so that the full route is displayed within the current map extent. more details	more details	Directions

Method Details

classes(classNames){String}inherited Since: ArcGIS API for JavaScript 4.7

A utility method used for building the value for a widget's class property. This aids in simplifying CSS class setup.

Parameter:

classNames String|String []|Object

repeatable

The class names.

Returns:

Type	Description
String	The computed class name.

See also:

Guide - Widget development (rendering)

Example:

// .tsx syntax showing how to set CSS classes while rendering the widget

render() {
  const dynamicIconClasses = {
    [CSS.myIcon]: this.showIcon,
    [CSS.greyIcon]: !this.showIcon
  };

  return (
    <div class={classes(CSS.root, CSS.mixin, dynamicIconClasses)} />
  );
}

destroy()inherited

Destroys the widget instance.

emit(type, event){Boolean}inherited

Emits an event on the instance. This method should only be used when creating subclasses of this class.

Parameters:

type String

The name of the event.

event Object

optional

The event payload.

Returns:

Type	Description
Boolean	`true` if a listener was notified

getDirections(){Promise<RouteResult>}

Calculate the route to the input locations and display the list of directions.

Returns:

Type	Description
Promise<RouteResult>	When resolved, returns an object containing the calculated RouteResult.

hasEventListener(type){Boolean}inherited

Indicates whether there is an event listener on the instance that matches the provided event name.

Parameter:

type String

The name of the event.

Returns:

Type	Description
Boolean	Returns true if the class supports the input event.

on(type, listener){Object}inherited

Registers an event handler on the instance. Call this method to hook an event with a listener.

Parameters:

type String|String []

A event type, or an array of event types, to listen for.

listener Function

The function to call when the event is fired.

Returns:

Type Description

Object

Returns an event handler with a remove() method that can be called to stop listening for the event(s).

Property	Type	Description
remove	Function	When called, removes the listener from the event.

Example:

view.on("click", function(event){
  // event is the event handle returned after the event fires.
  console.log(event.mapPoint);
});

own(handles)inherited

Widget teardown helper. Any handles added to it will be automatically removed when the widget is destroyed.

Parameter:

handles WatchHandle|WatchHandle []

Handles marked for removal once the widget is destroyed.

postInitialize()inherited

This method is primarily used by developers when implementing custom widgets. Executes after widget is ready for rendering.

render(){Object}inherited

This method is primarily used by developers when implementing custom widgets. It must be implemented by subclasses for rendering.

Returns:

Type	Description
Object	The rendered virtual node.

renderNow()inherited

Renders widget to the DOM immediately.

scheduleRender()inherited

This method is primarily used by developers when implementing custom widgets. Schedules widget rendering. This method is useful for changes affecting the UI.

zoomToRoute()

Zoom so that the full route is displayed within the current map extent.

Type Definitions

SearchProperties

Configurable Search properties of the widget.

Properties:

activeSourceIndex Number

optional

Number index indicating the current selected source.

allPlaceholder String

optional

String value used as a hint for input text when searching on multiple sources.

autoNavigate Boolean

optional

Default Value:true

Indicates whether to automatically navigate to the selected result once selected.

autoSelect Boolean

optional

Indicates whether to automatically select and zoom to the first geocoded result.

locationType String

optional

Define the type of location, either "street" or "rooftop". The default value will be "street" for any locator source that does not define a locationType.

maxResults Number

optional

Default Value:6

Indicates the maximum number of search results to return.

maxSuggestions Number

optional

Default Value:6

Indicates the maximum number of suggestions to return for the widget's input.

minSuggestCharacters Number

optional

Default Value:1

Indicates the minimum number of characters required before querying for a suggestion.

popupEnabled Boolean

optional

Default Value:false

Indicates whether to display a Popup when a selected result is clicked.

popupOpenOnSelect Boolean

optional

Default Value:true

Indicates whether to show the Popup when a result is selected.

popupTemplate PopupTemplate

optional

A customized PopupTemplate for the selected feature.

resultGraphicEnabled Boolean

optional

Default Value:false

Indicates whether to show a graphic on the map for the selected source.

searchAllEnabled Boolean

optional

Indicates whether to display the option to search all sources.

searchTerm String

optional

The value of the search box input text string.

sources Collection<(LayerSearchSource|LocatorSearchSource)>

optional

Specifies the sources to search in the view.

suggestionsEnabled Boolean

optional

Default Value:true

Indicates whether to display suggestions as the user enters input text in the widget.

view MapView|SceneView

optional

The view of the widget.

viewModel SearchViewModel

optional

The Search widget's view model.

ArcGIS API for JavaScript

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