Print

The Print widget connects your application with a printing service to allow the map to be printed. It takes advantage of server-side, high-quality, full cartographic print functionality using the ExportWebMap service of ArcGIS, which can be configured with custom layout templates. One is provided that shows the map only, while another provides a layout with legend, etc. The Print widget works with the print which generates a printer-ready version of the map.

The Print widget has two required properties: view (reference to the MapView) and printServiceUrl (URL of the REST endpoint of the Export Web Map Task). The widget can preserve map scale or map extent in the printout. By default, the map extent is preserved. Use TemplateOptions to preserve scale instead.

The Print widget prints a localized date for all layouts except map-only. If using a custom print service, then customTextElements are supported for each print template. Values found there will be populated in the Print widget under Advanced options. These values can be overwritten in the Print widget UI, or programmatically using the templateCustomTextElements property.

For more information about printing with the MAP_ONLY layout, please see exportOptions.

Known Limitations

See print for a detailed list of known limitations.

See also:

Example:

const print = new Print({
  view: view,
  // specify your own print service
  printServiceUrl:
     "https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task"
});

// Adds widget below other elements in the top left corner of the view
view.ui.add(print, {
  position: "top-left"
});

Constructors

new Print(properties)

Parameter:

properties Object

optional

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

Example:

// typical usage
let print = new Print({
  view: view,
  printServiceUrl: "https://www.example.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task"
});

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\|String []	more details Specify the print output file format(s) that the user can select based on the options available from the print service.	more details	Print
String\|String []	more details Specify the print output layout(s) that the user can select based on the options available from the print service.	more details	Print
String\|HTMLElement	more details The ID or node representing the DOM element containing the widget.	more details	Widget
String	more details The name of the class.	more details	Accessor
Collection<FileLink>	more details The collection of links exported from the Print widget.	more details	Print
Object	more details This option allows passing extra parameters (in addition to templateOptions) to the print (export webmap) requests.	more details	extraParameters
Number	more details Indicates the heading level to use for the "Exported files" text where users can access the exported map printout.	more details	Print
String	more details The widget's default CSS icon class.	more details	Print
String	more details The unique ID assigned to the widget when the widget is created.	more details	Widget
Boolean	more details Indicates whether or not to include defaultTemplates.	more details	Print
String	more details The widget's default label.	more details	Print
Portal	more details It is possible to search a specified portal instance's locator services.	more details	Print
String	more details The URL of the REST endpoint of the Export Web Map Task.	more details	Print
Object []	more details An object containing an array of `customTextElements` name-value pair objects for each print template in a custom print service.	more details	Print
TemplateOptions	more details Defines the layout template options used by the Print widget to generate the print page.	more details	Print
MapView	more details A reference to the MapView.	more details	Print
PrintViewModel	more details The view model for this widget.	more details	Print
Boolean	more details Indicates whether the widget is visible.	more details	Widget

Property Details

allowedFormats String|String [] Since: ArcGIS API for JavaScript 4.15

Specify the print output file format(s) that the user can select based on the options available from the print service. This property can take a string value or an array of string values.

When this value is "all" (default value), all the print service formats are available to be used. When an array of string values is used, only those values that match the options available from the print service will be used. If none of the input string values match those available from the print service, allowedFormats will fallback to default behavior.

Default Value:"all"

See also:

TemplateOptions.format

Example:

const print = new Print({
  view: view,
  printServiceUrl:
         "https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task",
  allowedFormats: ["jpg", "png8", "png32"]
});

allowedLayouts String|String [] Since: ArcGIS API for JavaScript 4.15

Specify the print output layout(s) that the user can select based on the options available from the print service. This property can take a string value or an array of string values.

When this value is "all" (default value), all the print service layouts are available to be used. When an array of string values is used, only those values that match the options available from the print service will be used. If none of the input string values match those available from the print service, allowedLayouts will fallback to default behavior.

Default Value:"all"

See also:

TemplateOptions.layout

Example:

const print = new Print({
  view: view,
  printServiceUrl:
         "https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task",
  allowedLayouts: ["a3-landscape", "a3-portrait"]
});

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.

exportedLinks Collection<FileLink>readonly Since: ArcGIS API for JavaScript 4.17

The collection of links exported from the Print widget.

Example:

require([
  "esri/widgets/Print",
  "esri/config"
], function(Print, esriConfig) {

  // ...

  view.when(function () {
    print = new Print({
      view: view,
      // specify your own print service
      printServiceUrl:
        "https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task"
    });

    // Add widget to the top right corner of the view
    view.ui.add(print, "top-right");

    // use a requestInterceptor to monitor the print widget
    // for print completion
    esriConfig.request.interceptors.push({
      // set the `urls` property to the URL of the print service so that this
      // interceptor only applies to requests made to the print service URL
      urls: print.printServiceUrl,
      // use the AfterInterceptorCallback to interogate the exportedLinks property
      after: function(response) {
        console.log("exportedLinks: ", print.exportedLinks.items[0]);
      }
    });
  });

extraParameters Objectinner Since: ArcGIS API for JavaScript 4.20

This option allows passing extra parameters (in addition to templateOptions) to the print (export webmap) requests.

headingLevel Number Since: ArcGIS API for JavaScript 4.20

Indicates the heading level to use for the "Exported files" text where users can access the exported map printout. By default, this text is rendered as a level 3 heading (e.g. <h3>Exported files</h3>). Depending on the widget's placement in your app, you may need to adjust this heading for proper semantics. This is important for meeting accessibility standards.

Default Value:3

See also:

Heading Elements

Example:

// "Exported files" will render as an <h4>
print.headingLevel = 4;

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.

includeDefaultTemplates Boolean Since: ArcGIS API for JavaScript 4.18

Indicates whether or not to include defaultTemplates.

Default Value:true

Example:

const printWidget = new Print({
   view: view,
   includeDefaultTemplates: false,
   portal: {url: "https://.example.arcgis.com/sharing/"},
   container: "printDiv"
});

label String Since: ArcGIS API for JavaScript 4.7

The widget's default label.

portal Portal Since: ArcGIS API for JavaScript 4.18

It is possible to search a specified portal instance's locator services. Use this property to set this ArcGIS Portal instance to search. This is especially helpful when working with a custom print template.

If this property is set, it is not necessary to set the printServiceUrl property.

See also:

CustomTemplate

Example:

const printWidget = new Print({
   view: view,
   portal: {url: "https://example.arcgis.com/sharing/"},
   container: "printDiv"
});

printServiceUrl String

The URL of the REST endpoint of the Export Web Map Task. If the portal property is set, it is not necessary to set this property.

templateCustomTextElements Object [] Since: ArcGIS API for JavaScript 4.22

An object containing an array of customTextElements name-value pair objects for each print template in a custom print service. Use this property to update the text for custom text elements on the page layout.

The Print widget calls the Get Layout Templates Info task on the GPServer to discover possible customTextElements values for each template. The name of the task must match Get Layout Templates Info, templates must be published with customTextElements, and values must be strings. Values found there will be populated in the Print widget under Advanced options. These values can be overwritten in the Print widget UI, or programmatically using this property. To list all print templates available on the print service to see see which templates were published with customTextElements, use the effectiveTemplateCustomTextElements property.

Example:

const printWidget = new Print({
   view: view,
   // specify your custom print service
   printServiceUrl: "",
   // `customTextElements` are defined per print template
   // this example has one template with `customTextElements`
   templateCustomTextElements: {
      // if there were more applicable templates, then we would
      // create another object with the template name containing
      // an array of more name-value pairs
      "Landscape_TextElements": [
         // the possible values are defined in the print service
         { "headquarters": "Foxborough, Massachusetts" },
         { "division": "AFC East" },
         { "founded": "1959" }
      ]
   }
});

templateOptions TemplateOptionsautocast Since: ArcGIS API for JavaScript 4.6

Defines the layout template options used by the Print widget to generate the print page.

Example:

templateOptions: {
  title: "My Print",
  author: "Sam",
  copyright: "My Company",
  legendEnabled: false
}

view MapView

A reference to the MapView. Set this to link the widget to a specific view.

viewModel PrintViewModelautocast

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 PrintViewModel class to access all properties and methods on the widget.

visible Boolean inherited

Indicates whether the widget is visible.

If false, the widget will no longer be rendered in the web document. This may affect the layout of other elements or widgets in the document. For example, if this widget is the first of three widgets associated to the upper right hand corner of the view UI, then the other widgets will reposition when this widget is made invisible. For more information, refer to the CSS display value of "none".

Default Value:true

Example:

// Hides the widget in the view
widget.visible = false;

Method Overview

Show inherited methods

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Return Type	Summary	Class
String	more details A utility method used for building the value for a widget's `class` property.	more details	Widget
	more details Destroys the widget instance.	more details	Widget
Boolean	more details Emits an event on the instance.	more details	Widget
Boolean	more details Indicates whether there is an event listener on the instance that matches the provided event name.	more details	Widget
Boolean	more details `isFulfilled()` may be used to verify if creating an instance of the class is fulfilled (either resolved or rejected).	more details	Widget
Boolean	more details `isRejected()` may be used to verify if creating an instance of the class is rejected.	more details	Widget
Boolean	more details `isResolved()` may be used to verify if creating an instance of the class is resolved.	more details	Widget
Object	more details Registers an event handler on the instance.	more details	Widget
	more details Widget teardown helper.	more details	Widget
	more details This method is primarily used by developers when implementing custom widgets.	more details	Widget
Object	more details This method is primarily used by developers when implementing custom widgets.	more details	Widget
	more details Renders widget to the DOM immediately.	more details	Widget
	more details This method is primarily used by developers when implementing custom widgets.	more details	Widget
Promise	more details `when()` may be leveraged once an instance of the class is created.	more details	Widget

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 Since: ArcGIS API for JavaScript 4.5

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

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.

isFulfilled(){Boolean}inherited Since: ArcGIS API for JavaScript 4.19

isFulfilled() may be used to verify if creating an instance of the class is fulfilled (either resolved or rejected). If it is fulfilled, true will be returned.

Returns:

Type	Description
Boolean	Indicates whether creating an instance of the class has been fulfilled (either resolved or rejected).

isRejected(){Boolean}inherited Since: ArcGIS API for JavaScript 4.19

isRejected() may be used to verify if creating an instance of the class is rejected. If it is rejected, true will be returned.

Returns:

Type	Description
Boolean	Indicates whether creating an instance of the class has been rejected.

isResolved(){Boolean}inherited Since: ArcGIS API for JavaScript 4.19

isResolved() may be used to verify if creating an instance of the class is resolved. If it is resolved, true will be returned.

Returns:

Type	Description
Boolean	Indicates whether creating an instance of the class has been resolved.

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 []

An event or an array of events to listen for.

listener Function

The function to call when the event fires.

Returns:

Type Description

Object

Returns an event handler with a remove() method that should 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.

when(callback, errback){Promise}inherited Since: ArcGIS API for JavaScript 4.19

when() may be leveraged once an instance of the class is created. This method takes two input parameters: a callback function and an errback function. The callback executes when the instance of the class loads. The errback executes if the instance of the class fails to load.

Parameters:

callback Function

optional

The function to call when the promise resolves.

errback Function

optional

The function to execute when the promise fails.

Returns:

Type	Description
Promise	Returns a new promise for the result of `callback` that may be used to chain additional functions.

Example:

// Although this example uses the BasemapGallery widget, any class instance that is a promise may use when() in the same way
let bmGallery = new BasemapGallery();
bmGallery.when(function(){
  // This function will execute once the promise is resolved
}, function(error){
  // This function will execute if the promise is rejected due to an error
});

Type Definitions

FileLink

Represents an exported map request from the result of the Print widget. Successful exports will have a URL that links to the printout. Failed ones will have information on what went wrong.

Properties:

count Number

The location of the FileLink element in the array.

error String

The error from the Print widget, if any.

extension String

The file type of the print-out.

name String

The fileName or title of the print-out.

state String

The state of the print-out. Either "ready" or "pending" or "error".

url String

The printServiceUrl of the print-out.

Example:

require([
  "esri/widgets/Print",
  "esri/config"
], function(Print, esriConfig) {

  // ...

  view.when(function () {
    print = new Print({
      view: view,
      // specify your own print service
      printServiceUrl:
        "https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task"
    });

    // Add widget to the top right corner of the view
    view.ui.add(print, "top-right");

    // use a requestInterceptor to monitor the print widget
    // for print completion
    esriConfig.request.interceptors.push({
      // set the `urls` property to the URL of the print service so that this
      // interceptor only applies to requests made to the print service URL
      urls: print.printServiceUrl,
      // use the AfterInterceptorCallback to interogate the exportedLinks property
      after: function(response) {
        console.log("exportedLinks: ", print.exportedLinks.items[0]);
      }
    });
  });

Event Overview

Name	Type	Summary	Class
	{results: Object,results.link: Collection<FileLink>}	more details Fires when a print request has been completed and returns its results.	more details	Print
	{results: Object,results.link: Collection<FileLink>}	more details Fires when an export request begins, and returns a reference to the exported link.	more details	Print

Event Details

complete Since: ArcGIS API for JavaScript 4.17

Fires when a print request has been completed and returns its results. This event will fire whether an export succeeds or fails.

Properties:

results Object

An object representing the results of the print.

Specification:

link Collection<FileLink>

Represents an exported map request from the result of the Print widget.

Example:

const printWidget = new Print();

printWidget.on("complete", function(results){
  // The results are stored in the results object
  console.log("Results of the print: ", results.link);
});

submit Since: ArcGIS API for JavaScript 4.17

Fires when an export request begins, and returns a reference to the exported link.

Properties:

results Object

An object representing the results of submitting the print.

Specification:

link Collection<FileLink>

Represents an exported map request from the result of the Print widget.

Example:

const printWidget = new Print();

printWidget.on("submit", function(results){
  // The results are stored in the event object
  console.log("Results of submitting the print: ", results.link);
});

ArcGIS API for JavaScriptAPI Reference

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