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Showing content from https://developers.arcgis.com/javascript/latest/api-reference/esri-identity-IdentityManager.html below:

IdentityManager | API Reference | ArcGIS Maps SDK for JavaScript 4.33

ESM: import esriId from "@arcgis/core/identity/IdentityManager.js";

CDN: const esriId = await $arcgis.import("@arcgis/core/identity/IdentityManager.js");

Class: @arcgis/core/identity/IdentityManager

Since: ArcGIS Maps SDK for JavaScript 4.0

This object provides the framework and helper methods used in managing user credentials for the following resources:

Secured ArcGIS.com or ArcGIS Enterprise portal resources (e.g. web maps).
ArcGIS Server resources secured using token-based authentication. Note that only ArcGIS Server versions 10 SP 1 and greater are supported. If your application accesses services from different domains, it is deemed a cross-domain request and you need to setup a proxy or use CORS (if supported by browser). If CORS is supported, the Identity Manager knows to make a request to the token service over https.

Authentication requests over http are prevented because sensitive data sent via GET can be viewed in server logs. To prevent this, the Identity Manager requires that you use POST over https to ensure your credentials are secure. View the proxy pages and CORS help topic for more details.

The IdentityManager module is slightly different than other modules in the API. Instead of returning a class constructor, it returns a singleton instance that has already been created by this module.

See also

Property Overview Name Type Summary Class dialog Widget

Dialog box widget used to challenge the user for their credentials when the application attempts to access a secure resource.

IdentityManager tokenValidity Number

The suggested lifetime of the token in minutes.

IdentityManager Property Details

: Dialog box widget used to challenge the user for their credentials when the application attempts to access a secure resource. This property is available after the dialog-create event has fired.

tokenValidity Property tokenValidity Number: The suggested lifetime of the token in minutes.

Method Overview Name Return Type Summary Class checkAppAccess() Promise<Object>

Returns a credential if the user has already signed in to access the given resource and is allowed to do so when using the given application id.

IdentityManager checkSignInStatus() Promise<Credential>

Returns the Credential if the user has already signed in to access the given resource.

IdentityManager destroyCredentials()

Destroys all credentials.

IdentityManager disablePostMessageAuth()

Disables the use of window.postMessage to serve authentication requests that were enabled by enablePostMessageAuth.

IdentityManager emit() Boolean

Emits an event on the instance.

IdentityManager enablePostMessageAuth()

Enables the IdentityManager to serve authentication requests for the given resource from apps running in child iframes.

IdentityManager findCredential() Credential

Returns the Credential for the resource identified by the specified url.

IdentityManager findOAuthInfo() OAuthInfo

Returns the OAuthInfo configuration for the passed in Portal server URL.

IdentityManager findServerInfo() ServerInfo

Returns information about the server that is hosting the specified URL.

IdentityManager generateToken() Promise<Object>

Returns an object containing a token and its expiration time.

IdentityManager getCredential() Promise<Credential>

Returns a Credential object that can be used to access the secured resource identified by the input URL.

IdentityManager hasEventListener() Boolean

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

IdentityManager initialize()

Call this method during application initialization with the JSON previously obtained from the toJSON() method used to re-hydrate the state of IdentityManager.

IdentityManager isBusy() Boolean

Indicates if the IdentityManager is busy accepting user input.

IdentityManager on() Object

Registers an event handler on the instance.

IdentityManager registerOAuthInfos()

Registers OAuth 2.0 configurations.

IdentityManager registerServers()

IdentityManager registerToken()

Registers the given OAuth 2.0 access token or ArcGIS Server token with the IdentityManager.

IdentityManager setOAuthRedirectionHandler()

Once a user successfully logs in, they are redirected back to the application.

IdentityManager setOAuthResponseHash()

Use this method in the popup callback page to pass the token and other values back to the IdentityManager.

IdentityManager setProtocolErrorHandler()

When accessing secured resources, the IdentityManager may prompt for username and password and send them to the server using a secure connection.

IdentityManager toJSON() Object

Return properties of this object in JSON format.

IdentityManager Method Details

checkAppAccess Method checkAppAccess(resUrl, appId){Promise<Object>} Since: ArcGIS Maps SDK for JavaScript 4.10 IdentityManager since 4.0, checkAppAccess added at 4.10.

Returns a credential if the user has already signed in to access the given resource and is allowed to do so when using the given application id. In addition, it also returns a boolean, viewOnly, property that indicates whether the app is only viewable. The default is false. If the user has not signed in or does not have access, then the promise will be rejected and its error callback will be called.

This scenario is generally not common unless you are building a licensed app. Also, please note that this method should only be used if your application is on the same domain as *.arcgis.com or ArcGIS Enterprise Server and is only applicable to applications registered as items in the Esri organization.

Parameters

The resource URL.

The registered OAuth application id.

Returns

Type Description Promise<Object> Resolves to an object which contains the following properties: Property Type Description credential Credential The credential of the user. viewOnly boolean Indicates whether the app is only viewable. Default is false.

checkSignInStatus Method checkSignInStatus(resUrl){Promise<Credential>}

Returns the Credential if the user has already signed in to access the given resource. If the user has not signed in, then the promise will be rejected and its error callback will be called.

Returns

Type Description Promise<Credential> Resolves to the returned credential of the signed-in user.

destroyCredentials Method destroyCredentials(): Destroys all credentials. It is good practice to call this method if working with an application that contains sign-out functionality as any tokens generated via OAuth will automatically be revoked.

disablePostMessageAuth Method disablePostMessageAuth() Since: ArcGIS Maps SDK for JavaScript 4.19 IdentityManager since 4.0, disablePostMessageAuth added at 4.19.

Disables the use of window.postMessage to serve authentication requests that were enabled by enablePostMessageAuth. This should be called to prevent memory leaks in SPA routing apps when they need to transition routes. Setting this this helps clean up and remove any windows's message event listeners that enablePostMessageAuth added.

Please refer to the topic, Passing authentication to IFramed apps for additional information. The main differences are:

The ArcGIS REST JS API's enablePostMessageAuth method's signature is different than what is provided in the ArcGIS Maps SDK for JavaScript as explained here.
Step three, i.e. Embed App boots and Requests Auth, does not apply when using the ArcGIS Maps SDK for JavaScript.

emit Method emit(type, event){Boolean} Since: ArcGIS Maps SDK for JavaScript 4.5 IdentityManager since 4.0, emit added at 4.5.

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

Parameters

The name of the event.

optional

The event payload.

Returns

Type Description Boolean true if a listener was notified

enablePostMessageAuth Method enablePostMessageAuth(resUrl) Since: ArcGIS Maps SDK for JavaScript 4.19 IdentityManager since 4.0, enablePostMessageAuth added at 4.19.

Enables the IdentityManager to serve authentication requests for the given resource from apps running in child iframes. The only apps that will be allowed to request the credential are ones that are either running at *.arcgis.com, or are running at the same origin as the host app. Requests from other apps will be ignored.

Only one resource may be authenticated in this manner at any one time. The URL of the resource should be used as the value of a parameter named arcgis-auth-portal that is included in the iframe's src URL. The iframe's src URL should also include another parameter named arcgis-auth-origin with a value of window.location.origin. Both of these parameter values should be URL-encoded using encodeURIComponent. These parameters are used by the IdentityManager, or the UserSession running in the iframe app when it needs the user's authentication to access a given resource.

Please refer to the topic, Passing authentication to IFramed apps for additional information. The main differences are:

The ArcGIS REST JS API's enablePostMessageAuth method's signature is different than what is provided in the ArcGIS Maps SDK for JavaScript as explained here.
Step three, i.e. Embed App boots and Requests Auth, does not apply when using the ArcGIS Maps SDK for JavaScript.

Parameter

optional

The resource URL. Default value is https://www.arcgis.com/sharing/rest.

findCredential Method findCredential(url, userId){Credential}

Returns the Credential for the resource identified by the specified url. Optionally, you can provide a userId to find credentials for a specific user.

Parameters

The URL to a server.

optional

The userId for which you want to obtain credentials.

Returns

Type Description Credential The credential for the resource identified by the specified URL.

findOAuthInfo Method findOAuthInfo(url){OAuthInfo}

Returns the OAuthInfo configuration for the passed in Portal server URL.

Returns

Type Description OAuthInfo The OAuthInfo configuration for the passed in Portal server URL.

Example

const esriId = await $arcgis.import("@arcgis/core/identity/IdentityManager.js");
let portalURL = "https://host.arcgis.com";
findOAuthInfo = function (){
  let oAuthInfo = esriId.findOAuthInfo(portalURL)
  console.log(oAuthInfo.toJSON())
}

findServerInfo Method findServerInfo(url){ServerInfo}

Returns information about the server that is hosting the specified URL.

Returns

Type Description ServerInfo The ServerInfo configuration for the passed in server URL.

generateToken Method generateToken(serverInfo, userInfo, options){Promise<Object>}

Returns an object containing a token and its expiration time. It is necessary to provide the ServerInfo object that contains a token service URL and a user info object containing username and password. This is a helper method typically called by sub-classes to generate tokens.

Parameters

Specification

A ServerInfo object that contains a token service URL.

A user info object containing a user name and password.

optional

See the table below for the structure of this object.

Specification

The server URL.

The server token.

Indicates if the server requires SSL.

Returns

Type Description Promise<Object> Resolves to an object containing a token and expiration time.

getCredential Method getCredential(url, options){Promise<Credential>}

Returns a Credential object that can be used to access the secured resource identified by the input URL.

Parameters

Specification

The URL for the secure resource

optional

See the table below for the structure of the options object.

Specification

optional

Error object returned by the server from a previous attempt to fetch the given URL.

optional

Default Value: true

If set to false, the user will not be shown a dialog before the OAuth popup window is opened.

optional

Token used for a previous unsuccessful attempt to fetch the given URL.

Returns

Type Description Promise<Credential> Resolves to an object containing a Credential that can be used to access the secured resource identified by the input URL.

hasEventListener Method hasEventListener(type){Boolean}

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

Returns

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

initialize Method initialize(json): Call this method during application initialization with the JSON previously obtained from the toJSON() method used to re-hydrate the state of IdentityManager.

Indicates if the IdentityManager is busy accepting user input. For example, it returns true if the user has invoked signIn and is waiting for a response.

Returns

Type Description Boolean Whether IdentityManager is currently accepting user input.

on Method on(type, listener){Object}

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

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);
});

registerOAuthInfos Method registerOAuthInfos(oAuthInfos)

Registers OAuth 2.0 configurations.

Parameter

An array of OAuthInfo objects that defines the OAuth configurations.

Example

const [OAuthInfo, esriId] = await $arcgis.import([
  "@arcgis/core/identity/OAuthInfo.js",
  "@arcgis/core/identity/IdentityManager.js"
]);
let oAuthInfo = new OAuthInfo({
  appId: "<registered client id>"
}); // required parameter
esriId.registerOAuthInfos([oAuthInfo]);

registerServers Method registerServers(serverInfos)

Parameter

An array of ServerInfos objects that defines the secure service and token endpoint. The IdentityManager makes its best guess to determine the location of the secure server and token endpoint. Therefore, in most cases calling this method is not necessary. However, if the location of your server or token endpoint is not standard, use this method to register the location.

Example

const [ServerInfo, esriId] = await $arcgis.import(["@arcgis/core/identity/ServerInfo.js", "@arcgis/core/identity/IdentityManager.js"]);
let serverInfo = new ServerInfo();
serverInfo.server = "https://sampleserver6.arcgisonline.com";
serverInfo.tokenServiceUrl = "https://sampleserver6.arcgisonline.com/arcgis/tokens/generateToken";
serverInfo.hasServer = true;
esriId.registerServers([serverInfo]);

registerToken Method registerToken(properties)

Registers the given OAuth 2.0 access token or ArcGIS Server token with the IdentityManager. See registerOAuthInfos for additional information. The registerToken method is an advanced workflow for pre-registering long-term tokens for when you don't want users to sign in.

Once a user logs in, the access token is registered with the IdentityManager. Subsequently, every request made by the application forwards this token when accessing web maps and other items stored in ArcGIS Online, or resources on your server.

Parameters

Specification

See the table below for the structure of the properties object.

setOAuthRedirectionHandler Method setOAuthRedirectionHandler(handlerFunction)

Once a user successfully logs in, they are redirected back to the application. Use this method if the application needs to execute custom logic before the page is redirected. The IdentityManager calls the custom handler function with an object containing redirection properties.

Parameter

When called, the callback passed to setOAuthRedirectionHandler receives an object containing the redirection properties.

Example

const esriId = await $arcgis.import("@arcgis/core/identity/IdentityManager.js");
esriId.setOAuthRedirectionHandler(function(info)
 {
   // Execute custom logic then perform redirect
   window.location = info.authorizeUrl + "?" + new URLSearchParams(info.authorizeParams).toString();
});

setOAuthResponseHash Method setOAuthResponseHash(hash)

Use this method in the popup callback page to pass the token and other values back to the IdentityManager.

Parameter

The token information in addition to any other values needed to be passed back to the IdentityManager.

setProtocolErrorHandler Method setProtocolErrorHandler(handlerFunction)

When accessing secured resources, the IdentityManager may prompt for username and password and send them to the server using a secure connection. Due to potential browser limitations, it may not be possible to establish a secure connection with the server if the application is being run over HTTP protocol. In such cases, the Identity Manager will abort the request to fetch the secured resource. To resolve this issue, configure your web application server with HTTPS support and run the application over HTTPS. This is the recommended solution for production environments. However, for internal development environments that don't have HTTPS support, you can define a protocol error handler that allows the Identity Manager to continue with the process over HTTP protocol.

Parameters

Specification

The function to call when the protocol is mismatched.

Specification

The secure resource URL.

ServerInfo object describing the server where the secure resource is hosted.

toJSON Method toJSON(){Object}

Return properties of this object in JSON format. It can be stored in a cookie or persisted in HTML5 LocalStorage and later used to:

Initialize the IdentityManager the next time a user opens your application.
Share the state of the IdentityManager between multiple web pages of your website. This way users will not be asked to sign in repeatedly when they launch your app multiple times or when navigating between multiple web pages in your website.

Returns

Type Description Object The JSON object representing the IdentityManager instance calling this method.

Type Definitions

handlerCallback Type Definition handlerCallback(info)

The callback to execute when setOAuthRedirectionHandler() is called.

Parameters

Specification

An object containing parameter values for the handlerCallback.

Specification

Object containing authorization parameters used to access the secure service.

Specification

The application ID of the registered application.

The type of response returned.

The state parameter passed back as the object in the Credential's oAuthState property.

The expiration time in minutes.

The locale being used.

The redirect URL represents the valid places that a user can be redirected to after a successful sign in.

The OAuth 2.0 authorization URL for the portal.

A reference to the OAuthInfo object.

The URL to the accessed resource.

The ServerInfo object describing the server where the secure resource is hosted.

Event Overview Event Details

credential-create Event credential-create: Fires when a credential is created.

dialog-create Event dialog-create: Fires when the IdentityManager dialog is created. This is used to prompt users for their credentials.

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