How do I implement JWT authentication in ASP.NET?
To implement JWT authentication in ASP.NET, you need to configure your application to use JWT tokens for user authentication. Start by installing the necessary NuGet packages like Microsoft.AspNetCore.Authentication.JwtBearer
.
What are the steps to configure JWT in my Startup.cs?
In your Startup.cs
, you need to add JWT authentication in the ConfigureServices
method. Use services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
and configure the token validation parameters.
Can you explain the token validation parameters?
Sure! The token validation parameters include settings like ValidateIssuer
, ValidateAudience
, ValidateLifetime
, and IssuerSigningKey
. These ensure that the token is valid and comes from a trusted source.
How do I generate a JWT token after user login?
After validating the user's credentials, you can create a JWT token using JwtSecurityTokenHandler
. Set the claims, expiration, and signing credentials, then return the token to the user.
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