NejCommon.NET/Services/ApiKeyProvider.cs

using AspNetCore.Authentication.ApiKey;
using Microsoft.EntityFrameworkCore;
using NanoidDotNet;
using NejCommon.Models;

namespace NejCommon.Services;

public partial class ApiKeyProvider : IApiKeyProvider, IScopedService
{
    private readonly ILogger<ApiKeyProvider> _logger;

    public async Task<IApiKey> ProvideAsync(string key)
    {
        try
        {
            var lookup = ApiKey.ComputeLookupHash(key);

            var apiKey = await GetApiKeySet().FirstOrDefaultAsync(x => x.LookupHash.SequenceEqual(lookup));
            if (apiKey == null)
            {
                return null;
            }

            if (!apiKey.VerifyStrongHash(key))
            {
                return null;
            }

            apiKey.Key = key;

            // write your validation implementation here and return an instance of a valid ApiKey or retun null for an invalid key.
            // return await _apiKeyRepository.GetApiKeyAsync(key);
            return apiKey;
        }
        catch (System.Exception exception)
        {
            _logger.LogError(exception, exception.Message);
            throw;
        }
    }

    public static string GenerateKey() => "nej-" + Nanoid.Generate(size: 256);
}