Aeldria-API/Services/JwtService.cs

using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Text;
using Microsoft.IdentityModel.Tokens;
using Aeldria.Api.Models;

namespace Aeldria.Api.Services;

public class JwtService
{
    private readonly IConfiguration _config;

    public JwtService(IConfiguration config)
    {
        _config = config;
    }

    public string GenerateToken(Account account)
    {
        var claims = new[]
        {
            new Claim(ClaimTypes.NameIdentifier, account.AccountId.ToString()),
            new Claim(ClaimTypes.Name, account.Username)
        };

        var key = new SymmetricSecurityKey(
            Encoding.UTF8.GetBytes(_config["Jwt:Key"]!)
        );

        var creds = new SigningCredentials(
            key,
            SecurityAlgorithms.HmacSha256
        );

        var token = new JwtSecurityToken(
            issuer: _config["Jwt:Issuer"],
            audience: _config["Jwt:Audience"],
            claims: claims,
            expires: DateTime.UtcNow.AddDays(7),
            signingCredentials: creds
        );

        return new JwtSecurityTokenHandler().WriteToken(token);
    }
}