How deeply does Building Web APIs with ASP.NET Core cover UserManager ?

Explains dependency injection and concrete asynchronous calls, but defers UserManager internals and Identity storage implementation.

UserManager<T>

As explained in Building Web APIs with ASP.NET Core

UserManager is an ASP.NET Core Identity service API that manages users and user-related operations, including role associations.

UserManager<T> is the ASP.NET Core Identity service for managing application users. In an account API, inject UserManager<ApiUser> into AccountController and use it to create users, find them by name, and verify passwords. section 9.2.6

Use UserManager<ApiUser> for these account and authorization tasks:

Check role membership with IsInRoleAsync and add users to roles with AddToRoleAsync during repeatable authentication-data seeding. section 9.4.2

Account registration

Validate RegisterDTO, copy its username and email into a new ApiUser, and call await _userManager.CreateAsync(newUser, input.Password). Check result.Succeeded before logging the creation and returning HTTP 201. Invalid email data produces HTTP 400, while a password that fails configured requirements produces an error response.

How Building Web APIs with ASP.NET Core covers it

Cover of Building Web APIs with ASP.NET Core

liveBook manning.com

Read Building Web APIs with ASP.NET Core on liveBook Get the book at manning.com

Also explained in

liveBook manning.com

ASP.NET Core in Action, 3eUserManager<T> is an ASP.NET Core Identity service for creating, retrieving, updating, and managing users and their associated credentials and data.
liveBook manning.com

Pro ASP.NET Core 7, Tenth EditionUserManager<T> is the ASP.NET Core Identity service class for creating, retrieving, updating, and deleting users of type T and managing related user operations.

Compare how 3 books explain UserManager<T> →

Related concepts

ASP.NET Core Identityused by · ASP.NET Core Identity is an extensible ASP.NET Core membership system for managing user accounts, credentials, claims, roles, authentication, and related identity data.
authenticationuses · Authentication is the process of establishing or verifying the identity of a user, service, device, or other communicating entity.
CreateAsyncuses · CreateAsync is an asynchronous ASP.NET Core Identity method that creates a new identity entity and reports whether the operation succeeded.
dependency injectionuses · Dependency injection is a software design technique in which a component receives its dependencies from outside rather than creating or locating them internally.
classkind of · A class is a programming-language construct that defines a type’s structure or behavior and provides a basis for creating or representing objects.

This explainer was generated by Manning's knowledge graph from the text of Building Web APIs with ASP.NET Core. The section links point to the parts of the book it draws on.