Identity Server Module

This module provides integration and management functionality for Identity Server;

  • Built on the IdentityServer4 library.
  • Manage Clients, Identity resources and API resources in the system.
  • Set permissions for clients.
  • Create standard identity resources (like role, profile) easily.
  • Create custom identity resources.
  • Manage API resources

See the module description page for an overview of the module features.

How to Install

Identity Server is pre-installed in the startup templates. So, no need to manually install it.


This module follows the module development best practices guide and consists of several NuGet and NPM packages. See the guide if you want to understand the packages and relations between them.

You can visit Identity module package list page to see list of packages related with this module.

User Interface

Menu Items

Identity Server module adds the following items to the "Main" menu, under the "Administration" menu item:

  • Clients: Client management page.
  • Identity resources: Identity resource management page.
  • API resources: API resource management page.

AbpIdentityServerMenuNames class has the constants for the menu item names.


Client Management

Clients page is used to manage Identity Server clients. A client represent applications that can request tokens from your Identity Server.


You can create new clients or edit existing clients in this page:


Identity Resource Management

Identity resource page is used to manage identity resources of Identity Server. Identity resources are data like user ID, name, or email address of a user.


You can create a new identity resource or edit an existing identity resource in this page:


This page allows creating standard identity resources (role, profile, phone, openid, email and address) using "Create standard resources" button.

API Resource Management

Identity Server module allows to manage API resources. To allow clients to request access tokens for APIs, you need to define API resources.


You can create a new API resource or edit an existing API resource in this page:


Data Seed

This module adds some initial data (see the data seed system) to the database when you run the .DbMigrator application:

  • Creates standard identity resources which are role, profile, phone, openid, email and address.

You can delete or edit created standard identity resources in the identity resource management page. You can also re-create standard identity resources in the identity resource management page using "Create standard resources" button.



AbpIdentityServerBuilderOptions can be configured in PreConfigureServices method of your Identity Server module. Example:

public override void PreConfigureServices(ServiceConfigurationContext context)
	PreConfigure<AbpIdentityServerBuilderOptions>(builder =>
    	//Set options here...		

AbpIdentityServerBuilderOptions properties:

  • UpdateJwtSecurityTokenHandlerDefaultInboundClaimTypeMap (default: true): Updates JwtSecurityTokenHandler.DefaultInboundClaimTypeMap to be compatible with Identity Server claims.
  • UpdateAbpClaimTypes (default: true): Updates AbpClaimTypes to be compatible with identity server claims.
  • IntegrateToAspNetIdentity (default: true): Integrate to ASP.NET Identity.
  • AddDeveloperSigningCredential (default: true): Set false to suppress AddDeveloperSigningCredential() call on the IIdentityServerBuilder.

IIdentityServerBuilder can be configured in PreConfigureServices method of your Identity Server module. Example:

public override void PreConfigureServices(ServiceConfigurationContext context)
	PreConfigure<IIdentityServerBuilder>(builder =>


Domain Layer


This module follows the Entity Best Practices & Conventions guide.


API Resources are needed for allowing clients to request access tokens.

  • ApiResource (aggregate root): Represents an API resource in the system.
    • ApiSecret (collection): secrets of the API resource.
    • ApiScope (collection): scopes of the API resource.
    • ApiResourceClaim (collection): claims of the API resource.

Clients represent applications that can request tokens from your Identity Server.

  • Client (aggregate root): Represents an Identity Server client application.
    • ClientScope (collection): Scopes of the client.
    • ClientSecret (collection): Secrets of the client.
    • ClientGrantType (collection): Grant types of the client.
    • ClientCorsOrigin (collection): CORS origins of the client.
    • ClientRedirectUri (collection): redirect URIs of the client.
    • ClientPostLogoutRedirectUri (collection): Logout redirect URIs of the client.
    • ClientIdPRestriction (collection): Provider restrictions of the client.
    • ClientClaim (collection): Claims of the client.
    • ClientProperty (collection): Custom properties of the client.

Persisted Grants stores AuthorizationCodes, RefreshTokens and UserConsent.

  • PersistedGrant (aggregate root): Represents PersistedGrant for identity server.

Identity resources are data like user ID, name, or email address of a user.

  • IdentityResource (aggregate root): Represents and Identity Server identity resource.
    • IdentityClaim (collection): Claims of identity resource.


This module follows the Repository Best Practices & Conventions guide.

Following custom repositories are defined for this module:

  • IApiResourceRepository
  • IClientRepository
  • IPersistentGrantRepository
  • IIdentityResourceRepository

Domain Services

This module follows the Domain Services Best Practices & Conventions guide.

Identity Server module doesn't contain any domain service but overrides services below;

  • AbpProfileService (Used when AbpIdentityServerBuilderOptions.IntegrateToAspNetIdentity is true)
  • AbpClaimsService
  • AbpCorsPolicyService


This module doesn't define any settings.

Application Layer

Application Services

  • ApiResourceAppService (implements IApiResourceAppService): Implements the use cases of the API resource management UI.
  • IdentityServerClaimTypeAppService (implement IIdentityServerClaimTypeAppService): Used to get list of claims.
  • ApiResourceAppService (implements IApiResourceAppService): Implements the use cases of the API resource management UI.
  • IdentityResourceAppService (implements IIdentityResourceAppService): Implements the use cases of the Identity resource management UI.

Database Providers


Table/Collection Prefix & Schema

All tables/collections use the IdentityServer prefix by default. Set static properties on the AbpIdentityServerDbProperties class if you need to change the table prefix or set a schema name (if supported by your database provider).

Connection String

This module uses AbpIdentityServer for the connection string name. If you don't define a connection string with this name, it fallbacks to the Default connection string.

See the connection strings documentation for details.

Entity Framework Core

  • IdentityServerApiResources
    • IdentityServerApiSecrets
    • IdentityServerApiScopes
      • IdentityServerApiScopeClaims
    • IdentityServerApiClaims
  • IdentityServerClients
    • IdentityServerClientScopes
    • IdentityServerClientSecrets
    • IdentityServerClientGrantTypes
    • IdentityServerClientCorsOrigins
    • IdentityServerClientRedirectUris
    • IdentityServerClientPostLogoutRedirectUris
    • IdentityServerClientIdPRestrictions
    • IdentityServerClientClaims
    • IdentityServerClientProperties
  • IdentityServerPersistedGrants
  • IdentityServerIdentityResources
    • IdentityServerIdentityClaims


  • IdentityServerApiResources
  • IdentityServerClients
  • IdentityServerPersistedGrants
  • IdentityServerIdentityResources


See the AbpIdentityServerPermissions class members for all permissions defined for this module.

Angular UI


In order to configure the application to use the IdentityServerModule, you first need to import IdentityServerConfigModule from @volo/ to root module. IdentityServerConfigModule has a static forRoot method which you should call for a proper configuration.

// app.module.ts
import { IdentityServerConfigModule } from '@volo/';

  imports: [
    // other imports
    // other imports
  // ...
export class AppModule {}

The IdentityServerModule should be imported and lazy-loaded in your routing module. It has a static forLazy method for configuration. Available options are listed below. It is available for import from @volo/

// app-routing.module.ts
const routes: Routes = [
  // other route definitions
    path: 'identity-server',
    loadChildren: () =>
      import('@volo/').then(m => m.IdentityServerModule.forLazy(/* options here */)),

@NgModule(/* AppRoutingModule metadata */)
export class AppRoutingModule {}

If you have generated your project via the startup template, you do not have to do anything, because it already has both IdentityServerConfigModule and IdentityServerModule.


You can modify the look and behavior of the module pages by passing the following options to IdentityServerModule.forLazy static method:

Services / Models

Identity Server module services and models are generated via generate-proxy command of the ABP CLI. If you need the module's proxies, you can run the following command in the Angular project directory:

abp generate-proxy --module identityServer

Replaceable Components

eIdentityServerComponents enum provides all replaceable component keys. It is available for import from @volo/

Please check Component Replacement document for details.

Remote Endpoint URL

The Identity Server module remote endpoint URL can be configured in the environment files.

export const environment = {
  // other configurations
  apis: {
    default: {
      url: 'default url here',
    AbpIdentityServer: {
      url: 'Identity Server remote url here'
    // other api configurations

The Identity Server module remote URL configuration shown above is optional. If you don't set a URL, the default.url will be used as fallback.

Distributed Events

This module defines events for Client aggregate and ClientCorsOrigin entity. When a Client or ClientCorsOrigin changes, AllowedCorsOriginsCacheItemInvalidator invalidates the cache for AllowedCorsOriginsCacheItem. See the standard distributed events for more information about distributed events.

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