Examples
.NET Authentication API
Building an Authentication API
.NET authentication API uses JWT for secure endpoints.
Introduction to JWT in .NET Authentication
JSON Web Tokens (JWT) are a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. In the .NET ecosystem, JWT is commonly used for securing endpoints by authenticating and authorizing users.
This guide will demonstrate how to implement JWT authentication in a .NET web application, ensuring that only authorized users can access certain endpoints.
Setting Up the .NET Project
To get started, create a new .NET Web API project. You can use the .NET CLI for this:
Configuring JWT Authentication
Once your project is ready, open the Startup.cs file or Program.cs if you are using .NET 6+, and add the following configurations to set up JWT authentication.
Generating JWT Tokens
To generate a JWT token, you need to create an endpoint that authenticates the user and returns a token. Below is an example of how you can implement a method to generate a JWT:
Securing Endpoints with JWT
After configuring JWT authentication, you can secure your API endpoints by using the [Authorize] attribute. This will ensure that only requests with a valid JWT token are allowed to access the endpoint.
Testing Your JWT Authentication
To test your JWT authentication, you can use tools like Postman to send requests to your API. Ensure you include the JWT token in the Authorization header as a Bearer token.
Example header:
Authorization: Bearer <your-jwt-token>Examples
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