SaaS module
This module implements the User and Role system of an application;
- Manage tenants and editions in the system. A tenant is allowed to have one edition.
- Set features of tenants.
- Set connection string of tenants.
- Set features of editions.
See the module description page for an overview of the module features.
How to install
Identity is pre-installed in the startup templates. So, no need to manually install it.
Packages
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.
NuGet packages
- Volo.Saas.Domain.Shared
- Volo.Saas.Domain
- Volo.Saas.EntityFrameworkCore
- Volo.Saas.MongoDB
- Volo.Saas.Tenant.Application
- Volo.Saas.Tenant.Application.Contracts
- Volo.Saas.Tenant.HttpApi
- Volo.Saas.Tenant.HttpApi.Client
- Volo.Saas.Tenant.Web
- Volo.Saas.Host.Application
- Volo.Saas.Host.Application.Contracts
- Volo.Saas.Host.HttpApi
- Volo.Saas.Host.HttpApi.Client
- Volo.Saas.Host.Web
NPM packages
- @volo/abp.ng.saas
- @volo/abp.ng.saas.config
User interface
Menu items
SaaS module adds the following items to the "Main" menu, under the "Administration" menu item:
- Tenants: Tenant management page.
- Editions: Edition management page.
SaasHostMenuNames
and SaasTenantMenuNames
classes have the constants for the menu item names.
Pages
Tenant management
Tenant page is used to manage tenants in the system.
You can create a new tenant or edit a tenant in this page:
Connection String
You can manage connection string of a tenant in case you want to use a separate database for a specific tenant. If you want to use Host database for a tenant, select "Use the Shared Database" option.
Tenant Features
You can set features of tenants.
Edition management
Editions page is used to manage the editions in your system.
You can create a new edition or edit an existing edition in this page:
Edition Features
You can set features of an edition 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 an
Standard
edition.
Internals
Domain layer
Aggregates
This module follows the Entity Best Practices & Conventions guide.
Tenant
A tenant is generally represents a group of users who share a common access with specific privileges to the software instance.
Tenant
(aggregate root): Represents a tenant in the system.TenantConnectionString
(collection): Connection strings of a tenant.
Edition
An edition is typically a category of features of the application.
Edition
(aggregate root): Represents an edition in the system.
Repositories
This module follows the Repository Best Practices & Conventions guide.
Following custom repositories are defined for this module:
ITenantRepository
IEditionRepository
Domain services
This module follows the Domain Services Best Practices & Conventions guide.
Tenant manager
TenantManager
is used to create tenants, change and validate name of tenants.
Application layer
Application services
TenantAppService
(implementsITenantAppService
): Implements the use cases of the tenant management UI.EditionAppService
(implementIEditionAppService
): Implements the use cases of the edition management UI.
Database providers
Common
Table / collection prefix & schema
All tables/collections use the Saas
prefix by default. Set static properties on the SaasDbProperties
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 Saas
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
Tables
- SaasTenants
- SaasTenantConnectionStrings
- SaasEditions
MongoDB
Collections
- SaasTenants
- SaasEditions
Permissions
See the SaasHostPermissions
class members for all permissions defined for this module.
Distributed Events
This module doesn't define any additional distributed event. See the standard distributed events.