parse jwt tokens in csharp

Here's an example code to parse a JWT token in C# using the System.IdentityModel.Tokens.Jwt package:

main.cs
using System.IdentityModel.Tokens.Jwt;

public static JwtSecurityToken ParseJwtToken(string accessToken)
{
    var handler = new JwtSecurityTokenHandler();
    var token = handler.ReadJwtToken(accessToken);
    return token;
}
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In this example, accessToken is the JWT token string that you want to parse. The method returns a JwtSecurityToken object that you can inspect for its various claims and other properties.

Note that this approach only reads and processes the JWT token, but does not validate its contents or signature. To perform validation, you can specify a TokenValidationParameters object when calling ReadJwtToken, which can include parameters such as signing keys, issuer, audience, expiration time, and more.