Security and authentication

ArcGIS Platform supports secure access to location services and private data. It ensures that only valid, authorized users and services access protected information. To access secure resources, you need to implement an authentication method so your applications can make authenticated requests to services.

An authentication method is the process used obtain an access token. Your app must present an access token whenever it makes an authenticated request to location services. Access tokens define the scope and permissions available to your application. The authentication method you use to get an access token will vary.

There are three types of authentication that can be used to obtain an access token:

API key authentication: This creates a permanent token that grants your application access to location services and, with an ArcGIS developer account, private content.
User authentication (formerly ArcGIS identity): This generates a short-lived token via OAuth 2.0, authorizing your application to access location services, content, and resources on behalf of a logged in ArcGIS user.
App credential authentication: This generates a short-lived token via OAuth 2.0, authorizing your application to access ready-to-use services on your behalf.

To make authenticated requests to services, you need to set the token parameter to an access token.

User authentication

User authentication is a set of authentication workflows that allow users with an ArcGIS account to sign into an application and access ArcGIS content, services, and resources. The typical authentication protocol used is OAuth2.0. When a user signs into an application with their ArcGIS account, an access token is generated that authorizes the application to access services and content on their behalf. The resources and functionality available depend on the user type, roles, and privileges of the user's ArcGIS account. This authentication type was previously known as Named user login and ArcGIS identity.

Service your app accesses through user authentication will be billed to the authenticated user's ArcGIS account and its associated ArcGIS subscription. If your application will access your users' secure content in ArcGIS or if you plan to distribute your application through ArcGIS Marketplace, you must use user authentication.

Implement user authentication when you want to:

Ensure users are signed in and authenticated with their own ArcGIS account.
Use your app user's credits to pay for their private data, content, or service transactions.
Limit the length of time users can be signed in to your app with a temporary token.
Distribute your app through ArcGIS Marketplace.

Learn more about user authentication

API keys

An API key is a permanent access token that grants your public-facing application access to specific, ready-to-use services, and, with an ArcGIS Developer account, private content, items, and limited client referrers.

Use API keys when you want to:

Quickly write applications that consume ready-to-use services.
Provide access to services without requiring users to sign in with an ArcGIS account.
Use an access token that doesn't expire.

Learn more about API keys

Use API keys in your ArcGIS Runtime app

An API key can be used to authorize access to specific ArcGIS Online services and resources from your app, as well as to monitor access to those services. An API key is created and managed in the ArcGIS developer dashboard and is tied to your ArcGIS account.

You can set an API key on the ArcGISRuntimeEnvironment , which will apply the key to all requests your app makes for ArcGIS Online services and resources. You can also set an API key on any ArcGIS Runtime class that implements APIKeyResourceInterface . When you set an API key for a specific class, it will override any key you may have set on ArcGISRuntimeEnvironment , enabling more granular usage telemetry and management for ArcGIS Online resources used by your app.

Classes that implement APIKeyResourceInterface include:

Application credentials

Application credentials grant a short-lived access token, generated via OAuth 2.0, authorizing your application to access ready-to-use services, such as basemap layers, search, and routing.

Use application credentials when you want to:

Access ready-to-use services with a more secure process and a short-lived token.
Provide access to services without requiring users to have an ArcGIS account.

Learn more about Application credentials

Choose an authentication method

The choice of which type of authentication to implement is primarily dependent upon the resources required by your application. Also consider the strengths and limitations of the API or SDK technology on which your application is built. Your choice of authentication method is also affected by the API with which you build your application. For example, ArcGIS Runtime APIs provide an AuthenticationManager, with helper methods and patterns to implement user authentication workflows.

Scenario	Solution
Your app requires access only to ready-to-use services, such as the basemap layer, geocoding, or routing services.	API key
Your app allows users to view and edit private data in ArcGIS.	user authentication
Your app is on a web server or API backend and requires access only to basemaps and geocoding.	Application credentials
Your app uses Esri Leaflet, Mapbox GL JS, or OpenLayers.	API key
Your app uses an ArcGIS API.	API key or user authentication

Authentication manager

ArcGIS Runtime APIs contain an AuthenticationManager, which provides helper methods and patterns for implementing user authentication workflows.

The AuthenticationManager is a singleton class that, when enabled, will manage the user credentials for the following resources:

ArcGIS Server resources secured using token-based authentication or using HTTP authentication. Note that only ArcGIS Server versions 10 SP 1 and greater are supported.
Secured ArcGIS.com resources (web maps, for example).
Secured ArcGIS Portal resources.

A credential for accessing to an ArcGIS resource can be preset by using AuthenticationManager.AddCredential . In this case the credential is used for any requests to the specified resources.

If a request to an ArcGIS resource returns an authorization error, the AuthenticationManager.ChallengeHandler , if not null, is called. This challenge handler can return the credential for accessing to the resource.

If the IChallengeHandler is null or if it doesn't return any credential, the authorization error is returned to the caller as if the request was executed out of the AuthenticationManager .