How does role-based authorization work in .NET Core API?

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Aryan Kumar · Answer

Role-based authorization in a .NET Core API is a common and straightforward way to control access to different parts of your application based on user roles. Here's how it works:
Role Assignment:
Users are assigned one or more roles when they authenticate. Roles represent a user's authorization level and group users with similar permissions together. For example, you might have roles like "Admin," "Editor," and "User."
Policy Definitions:
In your .NET Core application, you define authorization policies based on roles. Policies specify the roles or other criteria required to access specific parts of your API.
Authorization Middleware:
The application's middleware, specifically the authorization middleware, checks if the user's role(s) meet the requirements specified in the policy.
Access Control with [Authorize] Attribute:
You apply the [Authorize] attribute to your controllers or action methods, specifying the policy or roles required for access. When a user tries to access these endpoints, the attribute checks their role(s) against the defined policy.
Apply Authorization:and 
When a user tries to access an endpoint with the [Authorize] attribute, the role-based authorization system checks if the user's role(s) satisfy the policy's role requirement. If they do, access is granted; otherwise, it's denied.
Role-based authorization is an effective way to manage access control in your API, especially when different user roles have different levels of access. It simplifies the process of defining and enforcing access control rules and is a fundamental security mechanism in many applications.

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How does role-based authorization work in .NET Core API?

Sandra Emily

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