Initial work on getting minimal API to work

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedLocalCache/GeoFeedCacheService.cs

@@ -1,93 +0,0 @@
-using AS1024.GeoFeed.Core.Interfaces;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Logging;
-using System.Runtime.CompilerServices;
-
-namespace AS1024.GeoFeed.Core.GeoFeedLocalCache
-{
-    public class GeoFeedCacheService : IHostedService
-    {
-        private readonly ILogger<GeoFeedCacheService> logger;
-        private readonly IGeoFeedProvider feedProvider;
-        private readonly IHost host;
-
-        public GeoFeedCacheService(ILogger<GeoFeedCacheService> logger,
-        IGeoFeedProvider feedProvider,
-        IHost host)
-        {
-            this.logger = logger;
-            this.feedProvider = feedProvider;
-            this.host = host;
-        }
-
-        public Task StartAsync(CancellationToken cancellationToken)
-        {
-            _ = StartPerioidicSync(cancellationToken);
-            return Task.CompletedTask;
-        }
-
-        public Task StopAsync(CancellationToken cancellationToken)
-        {
-            return Task.CompletedTask;
-        }
-
-        public async Task<bool> StartPerioidicSync(CancellationToken Token)
-        {
-            await DBContextMigrate();
-
-            List<GeoFeedCacheEntry> geoFeedCacheEntry = [];
-            while (!Token.IsCancellationRequested)
-            {
-                logger.LogInformation("Running on disk fallback cache process...");
-                try
-                {
-                    using var scope = host.Services.CreateScope();
-                    using var dbContext = scope.ServiceProvider.GetRequiredService<GeoFeedCacheDbContext>();
-                    var results = await feedProvider.GetGeoFeedData();
-
-                    results.ForEach(x =>
-                    {
-                        geoFeedCacheEntry.Add(new()
-                        {
-                            Prefix = x.Prefix,
-                            GeolocCity = x.GeolocCity,
-                            GeolocCountry = x.GeolocCountry,
-                            GeolocHasLocation = x.GeolocHasLocation,
-                            GeolocPostalCode = x.GeolocPostalCode,
-                            GeolocRegion = x.GeolocRegion
-                        });
-                    });
-
-                    if (dbContext.GeoFeedCacheEntries.Any())
-                    {
-                        dbContext.GeoFeedCacheEntries.RemoveRange(dbContext.GeoFeedCacheEntries.ToArray());
-                    }
-                    await dbContext.AddRangeAsync(geoFeedCacheEntry, Token);
-                    await dbContext.SaveChangesAsync(Token);
-                }
-                catch (Exception ex)
-                {
-                    logger.LogWarning("On disk cache failed to run. Waiting on 30 minutes before retry...");
-                }
-                await Task.Delay(TimeSpan.FromMinutes(30));
-            }
-
-            return false;
-        }
-
-        private async Task DBContextMigrate()
-        {
-            using IServiceScope scope = host.Services.CreateScope();
-            using GeoFeedCacheDbContext? dbContext =
-                scope.ServiceProvider.GetService<GeoFeedCacheDbContext>();
-#pragma warning disable CS8602 // Dereference of a possibly null reference.
-            if (dbContext.Database.GetPendingMigrations().Any()) {
-                await dbContext.Database.MigrateAsync();
-            }
-#pragma warning restore CS8602 // Dereference of a possibly null reference.
-
-        }
-    }
-}

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedSqliteLocalCache/GeoFeedCacheDbContext.cs

@@ -1,6 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 
-namespace AS1024.GeoFeed.Core.GeoFeedLocalCache
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
 {
     public class GeoFeedCacheDbContext : DbContext
     {

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedSqliteLocalCache/GeoFeedCacheEntry.cs

@@ -1,7 +1,7 @@
 using AS1024.GeoFeed.Models;
 using System.ComponentModel.DataAnnotations;
 
-namespace AS1024.GeoFeed.Core.GeoFeedLocalCache
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
 {
     public class GeoFeedCacheEntry : IPGeoFeed
     {

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedSqliteLocalCache/GeoFeedCacheService.cs

@@ -0,0 +1,58 @@
+using AS1024.GeoFeed.Core.Interfaces;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using System.Runtime.CompilerServices;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+{
+    public class GeoFeedCacheService : IHostedService
+    {
+        private readonly ILogger<GeoFeedCacheService> logger;
+        private readonly IGeoFeedProvider feedProvider;
+        private readonly IHost host;
+        private readonly IGeoFeedPersistentCacheProvider persistentCacheProvider;
+
+        public GeoFeedCacheService(ILogger<GeoFeedCacheService> logger,
+        IGeoFeedProvider feedProvider,
+        IHost host,
+        IGeoFeedPersistentCacheProvider persistentCacheProvider)
+        {
+            this.logger = logger;
+            this.feedProvider = feedProvider;
+            this.host = host;
+            this.persistentCacheProvider = persistentCacheProvider;
+        }
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            _ = StartPerioidicSync(cancellationToken);
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+
+        public async Task<bool> StartPerioidicSync(CancellationToken Token)
+        {
+            while (!Token.IsCancellationRequested)
+            {
+                try
+                {
+                    var results = await feedProvider.GetGeoFeedData();
+                    await persistentCacheProvider.CacheGeoFeed(results);
+                }
+                catch (Exception)
+                {
+                    logger.LogWarning("On disk cache failed to run. Waiting on 30 minutes before retry...");
+                }
+                await Task.Delay(TimeSpan.FromMinutes(30));
+            }
+
+            return false;
+        }
+    }
+}

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedSqliteLocalCache/GeoFeedDesignTimeMigration.cs

@@ -1,7 +1,8 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Design;
 
-namespace AS1024.GeoFeed.Core.GeoFeedLocalCache
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+
 {
     public class GeoFeedDesignTimeMigration : IDesignTimeDbContextFactory<GeoFeedCacheDbContext>
     {

AS1024.GeoFeed.Core.GeoFeedLocalCache/GeoFeedSqliteLocalCache/GeoFeedSqliteCache.cs

@@ -0,0 +1,72 @@
+using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Hosting;
+using AS1024.GeoFeed.Core.Tools;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+{
+    public class GeoFeedSqliteCache : IGeoFeedPersistentCacheProvider
+    {
+        protected readonly GeoFeedCacheDbContext dbContext;
+        private readonly IGeoFeedProvider feedProvider;
+
+        public GeoFeedSqliteCache(GeoFeedCacheDbContext geoFeedCacheDb,
+                                  IHost host,
+                                  IGeoFeedProvider provider)
+        {
+            dbContext = geoFeedCacheDb;
+            feedProvider = provider;
+        }
+
+        public string ProviderName => "sqlite";
+
+        public async Task<bool> CacheGeoFeed(IList<IPGeoFeed> pGeoFeeds)
+        {
+            await DBContextMigrate();
+            List<GeoFeedCacheEntry> geoFeedCacheEntry = [];
+
+            var results = pGeoFeeds.ToList();
+
+            results.ForEach(x =>
+            {
+                geoFeedCacheEntry.Add(new()
+                {
+                    Prefix = x.Prefix,
+                    GeolocCity = x.GeolocCity,
+                    GeolocCountry = x.GeolocCountry,
+                    GeolocHasLocation = x.GeolocHasLocation,
+                    GeolocPostalCode = x.GeolocPostalCode,
+                    GeolocRegion = x.GeolocRegion
+                });
+            });
+
+            if (dbContext.GeoFeedCacheEntries.Any())
+            {
+                dbContext.GeoFeedCacheEntries.RemoveRange(dbContext.GeoFeedCacheEntries.ToArray());
+            }
+            await dbContext.AddRangeAsync(geoFeedCacheEntry);
+            await dbContext.SaveChangesAsync();
+
+            return true;
+        }
+
+        public string GetGeoFeed()
+        {
+            var results =
+                dbContext.GeoFeedCacheEntries.ToList();
+            List<IPGeoFeed> cachedData = [];
+            results.ForEach(cachedData.Add);
+
+            return cachedData.ToGeoFeedCsv();
+        }
+
+        private async Task DBContextMigrate()
+        {
+            if (dbContext.Database.GetPendingMigrations().Any())
+            {
+                await dbContext.Database.MigrateAsync();
+            }
+        }
+    }
+}

AS1024.GeoFeed.Core.SqliteGeoFeedCache/AS1024.GeoFeed.Core.SqliteGeoFeedCache.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AS1024.GeoFeed.Core\AS1024.GeoFeed.Core.csproj" />
+    <ProjectReference Include="..\AS1024.GeoFeed.Models\AS1024.GeoFeed.Models.csproj" />
+  </ItemGroup>
+
+</Project>

AS1024.GeoFeed.Core.SqliteGeoFeedCache/GeoFeedCacheDbContext.cs

@@ -0,0 +1,15 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+{
+    public class GeoFeedCacheDbContext : DbContext
+    {
+        public GeoFeedCacheDbContext(DbContextOptions options)
+            : base(options)
+        {
+        }
+
+        public virtual DbSet<GeoFeedCacheEntry> GeoFeedCacheEntries { get; set; }
+    }
+
+}

AS1024.GeoFeed.Core.SqliteGeoFeedCache/GeoFeedCacheEntry.cs

@@ -0,0 +1,12 @@
+using AS1024.GeoFeed.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+{
+    public class GeoFeedCacheEntry : IPGeoFeed
+    {
+        [Key]
+        public int Id { get; set; }
+    }
+
+}

AS1024.GeoFeed.Core.SqliteGeoFeedCache/GeoFeedDesignTimeMigration.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+
+{
+    public class GeoFeedDesignTimeMigration : IDesignTimeDbContextFactory<GeoFeedCacheDbContext>
+    {
+        public GeoFeedCacheDbContext CreateDbContext(string[] args)
+        {
+            var builder = new DbContextOptionsBuilder<GeoFeedCacheDbContext>();
+            builder.UseSqlite("Data Source=migratedb.db");
+            return new GeoFeedCacheDbContext(builder.Options);
+        }
+    }
+
+}

AS1024.GeoFeed.Core.SqliteGeoFeedCache/GeoFeedSqliteCache.cs

@@ -0,0 +1,72 @@
+using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Hosting;
+using AS1024.GeoFeed.Core.Tools;
+
+namespace AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache
+{
+    public class GeoFeedSqliteCache : IGeoFeedPersistentCacheProvider
+    {
+        protected readonly GeoFeedCacheDbContext dbContext;
+        private readonly IGeoFeedProvider feedProvider;
+
+        public GeoFeedSqliteCache(GeoFeedCacheDbContext geoFeedCacheDb,
+                                  IHost host,
+                                  IGeoFeedProvider provider)
+        {
+            dbContext = geoFeedCacheDb;
+            feedProvider = provider;
+        }
+
+        public string ProviderName => "sqlite";
+
+        public async Task<bool> CacheGeoFeed(IList<IPGeoFeed> pGeoFeeds)
+        {
+            await DBContextMigrate();
+            List<GeoFeedCacheEntry> geoFeedCacheEntry = [];
+
+            var results = pGeoFeeds.ToList();
+
+            results.ForEach(x =>
+            {
+                geoFeedCacheEntry.Add(new()
+                {
+                    Prefix = x.Prefix,
+                    GeolocCity = x.GeolocCity,
+                    GeolocCountry = x.GeolocCountry,
+                    GeolocHasLocation = x.GeolocHasLocation,
+                    GeolocPostalCode = x.GeolocPostalCode,
+                    GeolocRegion = x.GeolocRegion
+                });
+            });
+
+            if (dbContext.GeoFeedCacheEntries.Any())
+            {
+                dbContext.GeoFeedCacheEntries.RemoveRange(dbContext.GeoFeedCacheEntries.ToArray());
+            }
+            await dbContext.AddRangeAsync(geoFeedCacheEntry);
+            await dbContext.SaveChangesAsync();
+
+            return true;
+        }
+
+        public string GetGeoFeed()
+        {
+            var results =
+                dbContext.GeoFeedCacheEntries.ToList();
+            List<IPGeoFeed> cachedData = [];
+            results.ForEach(cachedData.Add);
+
+            return cachedData.ToGeoFeedCsv();
+        }
+
+        private async Task DBContextMigrate()
+        {
+            if (dbContext.Database.GetPendingMigrations().Any())
+            {
+                await dbContext.Database.MigrateAsync();
+            }
+        }
+    }
+}

AS1024.GeoFeed.Core.SqliteGeoFeedCache/Migrations/20240114002908_InitialMigration.Designer.cs

@@ -1,6 +1,6 @@
 // <auto-generated />
 using System;
-using AS1024.GeoFeed.Core.GeoFeedLocalCache;
+using AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Migrations;
@@ -8,10 +8,10 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 
 #nullable disable
 
-namespace AS1024.GeoFeed.Core.Migrations
+namespace AS1024.GeoFeed.Core.SqliteGeoFeedCache.Migrations
 {
     [DbContext(typeof(GeoFeedCacheDbContext))]
-    [Migration("20240113204143_InitialMigration")]
+    [Migration("20240114002908_InitialMigration")]
     partial class InitialMigration
     {
         /// <inheritdoc />
@@ -20,7 +20,7 @@ namespace AS1024.GeoFeed.Core.Migrations
 #pragma warning disable 612, 618
             modelBuilder.HasAnnotation("ProductVersion", "8.0.0");
 
-            modelBuilder.Entity("AS1024.GeoFeed.Core.GeoFeedLocalCache.GeoFeedCacheEntry", b =>
+            modelBuilder.Entity("AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache.GeoFeedCacheEntry", b =>
                 {
                     b.Property<int>("Id")
                         .ValueGeneratedOnAdd()

AS1024.GeoFeed.Core.SqliteGeoFeedCache/Migrations/20240114002908_InitialMigration.cs

@@ -2,7 +2,7 @@
 
 #nullable disable
 
-namespace AS1024.GeoFeed.Core.Migrations
+namespace AS1024.GeoFeed.Core.SqliteGeoFeedCache.Migrations
 {
     /// <inheritdoc />
     public partial class InitialMigration : Migration

AS1024.GeoFeed.Core.SqliteGeoFeedCache/Migrations/GeoFeedCacheDbContextModelSnapshot.cs

@@ -1,13 +1,13 @@
 // <auto-generated />
 using System;
-using AS1024.GeoFeed.Core.GeoFeedLocalCache;
+using AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 
 #nullable disable
 
-namespace AS1024.GeoFeed.Core.Migrations
+namespace AS1024.GeoFeed.Core.SqliteGeoFeedCache.Migrations
 {
     [DbContext(typeof(GeoFeedCacheDbContext))]
     partial class GeoFeedCacheDbContextModelSnapshot : ModelSnapshot
@@ -17,7 +17,7 @@ namespace AS1024.GeoFeed.Core.Migrations
 #pragma warning disable 612, 618
             modelBuilder.HasAnnotation("ProductVersion", "8.0.0");
 
-            modelBuilder.Entity("AS1024.GeoFeed.Core.GeoFeedLocalCache.GeoFeedCacheEntry", b =>
+            modelBuilder.Entity("AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache.GeoFeedCacheEntry", b =>
                 {
                     b.Property<int>("Id")
                         .ValueGeneratedOnAdd()

AS1024.GeoFeed.Core/AS1024.GeoFeed.Core.csproj

@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.0" />

AS1024.GeoFeed.Core/CacheService/GeoFeedCacheService.cs

@@ -0,0 +1,58 @@
+using AS1024.GeoFeed.Core.Interfaces;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace AS1024.GeoFeed.Core.CacheService
+{
+    public class GeoFeedCacheService : IHostedService
+    {
+        private readonly ILogger<GeoFeedCacheService> logger;
+        private readonly IGeoFeedProvider feedProvider;
+        private readonly IHost host;
+
+        public GeoFeedCacheService(ILogger<GeoFeedCacheService> logger,
+        IGeoFeedProvider feedProvider,
+        IHost host)
+        {
+            this.logger = logger;
+            this.feedProvider = feedProvider;
+            this.host = host;
+        }
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            _ = StartPerioidicSync(cancellationToken);
+            return Task.CompletedTask;
+        }
+
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+
+        public async Task<bool> StartPerioidicSync(CancellationToken Token)
+        {
+            while (!Token.IsCancellationRequested)
+            {
+                try
+                {
+                    var scope = host.Services.CreateScope();
+
+                    var persistentCacheProvider = 
+                        scope.ServiceProvider.GetRequiredService<IGeoFeedPersistentCacheProvider>();
+
+                    var results = await feedProvider.GetGeoFeedData();
+                    await persistentCacheProvider.CacheGeoFeed(results);
+                }
+                catch (Exception)
+                {
+                    logger.LogWarning("On disk cache failed to run. Waiting on 30 minutes before retry...");
+                }
+                await Task.Delay(TimeSpan.FromMinutes(30));
+            }
+
+            return false;
+        }
+    }
+}

AS1024.GeoFeed.Core/CacheService/GeoFeedLocalFileCache.cs

@@ -0,0 +1,55 @@
+using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Models;
+using AS1024.GeoFeed.Core.Tools;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace AS1024.GeoFeed.Core.CacheService
+{
+    public class GeoFeedLocalFileCache : IGeoFeedPersistentCacheProvider
+    {
+        private readonly IConfiguration configuration;
+        private readonly ILogger<GeoFeedLocalFileCache> logger;
+
+        public GeoFeedLocalFileCache(IConfiguration _configuration,
+            ILogger<GeoFeedLocalFileCache> logger)
+        {
+            configuration = _configuration;
+            this.logger = logger;
+        }
+
+        string IGeoFeedPersistentCacheProvider.ProviderName => "file";
+
+        Task<bool> IGeoFeedPersistentCacheProvider.CacheGeoFeed(IList<IPGeoFeed> pGeoFeeds)
+        {
+            string? tempPath = GetTempPath();
+            logger.LogInformation($"Writing geofeed data to: {tempPath}");
+            File.WriteAllText(tempPath, pGeoFeeds.ToList().
+                ToGeoFeedCsv());
+
+            return Task.FromResult(true);
+        }
+
+        private string GetTempPath()
+        {
+            string? tempPath = Path.Combine(Path.GetTempPath(), "geoFeedCache.csv");
+
+            logger.LogInformation($"Getting GeoFeed data from: {tempPath}");
+
+            if (!string.IsNullOrEmpty(configuration["TempCache"]))
+                tempPath = configuration["TempCache"];
+            return tempPath;
+        }
+
+        string IGeoFeedPersistentCacheProvider.GetGeoFeed()
+        {
+            return File.ReadAllText(GetTempPath());
+        }
+    }
+}

AS1024.GeoFeed.Core/GeoFeedPreloader/PreloadGeoFeed.cs

@@ -1,4 +1,5 @@
 using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Models;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
@@ -40,7 +41,7 @@ namespace AS1024.GeoFeed.Core.GeoFeedPreloader
         private async Task StartPreLoad()
         {
             logger.LogInformation("Preloading GeoFeed data in memory...");
-            List<Models.IPGeoFeed> feed = await provider.GetGeoFeedData();
+            List<IPGeoFeed> feed = await provider.GetGeoFeedData();
             MemoryCacheEntryOptions cacheEntryOptions = new MemoryCacheEntryOptions().SetAbsoluteExpiration(TimeSpan.FromMinutes(45));
             memoryCache.Set(GeoFeedCacheKey, feed, cacheEntryOptions);
         }

AS1024.GeoFeed.Core/Interfaces/IGeoFeedCacheProvider.cs

@@ -0,0 +1,31 @@
+using AS1024.GeoFeed.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AS1024.GeoFeed.Core.Interfaces
+{
+    /// <summary>
+    /// Represents a persistent cache GeoFeed provider
+    /// </summary>
+    public interface IGeoFeedPersistentCacheProvider
+    {
+        /// <summary>
+        /// Name of the provider
+        /// </summary>
+        public string ProviderName { get; }
+        /// <summary>
+        /// Returns the GeoFeed
+        /// </summary>
+        /// <returns>String of the CSV geofeed</returns>
+        public string GetGeoFeed();
+        /// <summary>
+        /// Stores the GeoFeed in the cache backend
+        /// </summary>
+        /// <param name="pGeoFeeds">GeoFeed retrieved from the backend</param>
+        /// <returns></returns>
+        public Task<bool> CacheGeoFeed(IList<IPGeoFeed> pGeoFeeds);
+    }
+}

AS1024.GeoFeed.MinimalAPI/AS1024.GeoFeed.MinimalAPI.csproj

@@ -13,4 +13,8 @@
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.5" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\AS1024.GeoFeed.Core\AS1024.GeoFeed.Core.csproj" />
+  </ItemGroup>
+
 </Project>

AS1024.GeoFeed.MinimalAPI/GeoFeedAoTProvider.cs

@@ -0,0 +1,31 @@
+using AS1024.GeoFeed.Core.GeoFeedProviders;
+using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Models;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
+using System.Threading.Tasks;
+
+namespace AS1024.GeoFeed.MinimalAPI
+{
+    internal class NetboxAoTGeoFeedProvider : NetBoxGeoFeedProvider, IGeoFeedProvider
+    {
+        private readonly JsonSerializerOptions appJsonSerializer;
+
+        public NetboxAoTGeoFeedProvider(IConfiguration configuration,
+                                        ILogger<NetBoxGeoFeedProvider> logger,
+                                        IHttpClientFactory httpClientFactory)
+            : base(configuration, logger, httpClientFactory)
+        {
+        }
+
+        protected override NetboxData? DeserializeJsonData(string stringResult)
+        {
+            return JsonSerializer.Deserialize(stringResult, AppJsonSerializerContext.Default.NetboxData);
+        }
+    }
+}

AS1024.GeoFeed.MinimalAPI/Program.cs

@@ -1,3 +1,9 @@
+using AS1024.GeoFeed.Core.GeoFeedProviders;
+using AS1024.GeoFeed.Core.Interfaces;
+using AS1024.GeoFeed.Core.Tools;
+using AS1024.GeoFeed.Models;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
 using System.Text.Json.Serialization;
 
 namespace AS1024.GeoFeed.MinimalAPI
@@ -7,12 +13,39 @@ namespace AS1024.GeoFeed.MinimalAPI
         public static void Main(string[] args)
         {
             var builder = WebApplication.CreateSlimBuilder(args);
-
+            builder.Services.AddTransient<IGeoFeedProvider, NetboxAoTGeoFeedProvider>();
+            builder.Services.AddMemoryCache();
+            builder.Services.AddLogging();
+            builder.Services.AddHttpClient();
+            builder.Services.ConfigureHttpJsonOptions(options => {
+                options.SerializerOptions.TypeInfoResolverChain.Insert(0, AppJsonSerializerContext.Default);
+            });
             var app = builder.Build();
-            var geoFeed = app.MapGroup("/geofeed.csv");
+            var geoFeed = app.Map("/geofeed.csv", async (IGeoFeedProvider provider, ILogger<Program> logger) => {
+                try
+                {
+                    var results =
+                    await provider.GetGeoFeedData();
+                    return results.ToGeoFeedCsv();
+                }
+                catch (Exception ex)
+                {
+                    logger.LogError($"Error: {ex}");
+                }
 
+                return "";
+            });
             app.Run();
         }
     }
 
+    [JsonSerializable(typeof(NetboxData))]
+    [JsonSerializable(typeof(Result))]
+    [JsonSerializable(typeof(CustomFields))]
+    [JsonSourceGenerationOptions(PropertyNamingPolicy = JsonKnownNamingPolicy.SnakeCaseLower)]
+    internal partial class AppJsonSerializerContext : JsonSerializerContext
+    {
+
+    }
+
 }

AS1024.GeoFeed.sln

@@ -14,7 +14,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AS1024.GeoFeed.Core", "AS10
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AS1024.GeoFeed.MinimalAPI", "AS1024.GeoFeed.MinimalAPI\AS1024.GeoFeed.MinimalAPI.csproj", "{36F2958C-8D0E-463B-9BF3-D6E55E6FC0B8}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AS1024.GeoFeed.Core.GeoFeedLocalCache", "AS1024.GeoFeed.Core.GeoFeedLocalCache\AS1024.GeoFeed.Core.GeoFeedLocalCache.csproj", "{C474F55D-AE8E-4DF3-A241-FB017551C74A}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AS1024.GeoFeed.Core.SqliteGeoFeedCache", "AS1024.GeoFeed.Core.SqliteGeoFeedCache\AS1024.GeoFeed.Core.SqliteGeoFeedCache.csproj", "{3459BB31-FA7A-44D1-872D-C5338ACFBF80}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -38,10 +38,10 @@ Global
 		{36F2958C-8D0E-463B-9BF3-D6E55E6FC0B8}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{36F2958C-8D0E-463B-9BF3-D6E55E6FC0B8}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{36F2958C-8D0E-463B-9BF3-D6E55E6FC0B8}.Release|Any CPU.Build.0 = Release|Any CPU
-		{C474F55D-AE8E-4DF3-A241-FB017551C74A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3459BB31-FA7A-44D1-872D-C5338ACFBF80}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{C474F55D-AE8E-4DF3-A241-FB017551C74A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3459BB31-FA7A-44D1-872D-C5338ACFBF80}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{C474F55D-AE8E-4DF3-A241-FB017551C74A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3459BB31-FA7A-44D1-872D-C5338ACFBF80}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{C474F55D-AE8E-4DF3-A241-FB017551C74A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3459BB31-FA7A-44D1-872D-C5338ACFBF80}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

AS1024.GeoFeed/AS1024.GeoFeed.csproj

@@ -22,7 +22,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\AS1024.GeoFeed.Core.GeoFeedLocalCache\AS1024.GeoFeed.Core.GeoFeedLocalCache.csproj" />
+    <ProjectReference Include="..\AS1024.GeoFeed.Core.SqliteGeoFeedCache\AS1024.GeoFeed.Core.SqliteGeoFeedCache.csproj" />
     <ProjectReference Include="..\AS1024.GeoFeed.Core\AS1024.GeoFeed.Core.csproj" />
     <ProjectReference Include="..\AS1024.GeoFeed.Models\AS1024.GeoFeed.Models.csproj" />
   </ItemGroup>

AS1024.GeoFeed/Controllers/GeofeedController.cs

@@ -3,7 +3,6 @@ using AS1024.GeoFeed.Core.Interfaces;
 using Microsoft.Extensions.Caching.Memory;
 using AS1024.GeoFeed.Models;
 using System.Text;
-using AS1024.GeoFeed.Core.GeoFeedLocalCache;
 using AS1024.GeoFeed.Core.Tools;
 
 namespace AS1024.GeoFeed.Controllers
@@ -18,16 +17,16 @@ namespace AS1024.GeoFeed.Controllers
         private readonly IMemoryCache memoryCache;
         private readonly IWebHostEnvironment environment;
         private readonly ILogger<GeofeedController> logger;
-        private readonly GeoFeedCacheDbContext dbContext;
+        private readonly IGeoFeedPersistentCacheProvider geoFeedPersistentCache;
         private const string GeoFeedCacheKey = "GeoFeedData";
 
         public GeofeedController(IGeoFeedProvider builder,
             IMemoryCache memoryCache,
             IWebHostEnvironment environment,
             ILogger<GeofeedController> logger,
-            GeoFeedCacheDbContext dbContext) {
+            IGeoFeedPersistentCacheProvider geoFeedPersistentCache) {
             this.logger = logger;
-            this.dbContext = dbContext;
+            this.geoFeedPersistentCache = geoFeedPersistentCache;
             this.builder = builder;
             this.memoryCache = memoryCache;
             this.environment = environment;
@@ -54,10 +53,7 @@ namespace AS1024.GeoFeed.Controllers
             } catch (HttpRequestException ex)
             {
                 logger.LogWarning($"Temporary failure of retrieving GeoData from upstream. {ex}");
-                var results = 
+                var cachedData = geoFeedPersistentCache.GetGeoFeed();
-                    dbContext.GeoFeedCacheEntries.ToList();
-                List<IPGeoFeed> cachedData = [];
-                results.ForEach(cachedData.Add);
                 return ReturnFile(cachedData);
             }
 
@@ -73,6 +69,12 @@ namespace AS1024.GeoFeed.Controllers
         private IActionResult ReturnFile(List<IPGeoFeed>? feed)
         {
             string csvContent = feed.ToGeoFeedCsv(); // Assuming ToGeoFeedCsv() returns a string in CSV format.
+            return ReturnFile(csvContent);
+        }
+
+        [NonAction]
+        private IActionResult ReturnFile(string csvContent)
+        {
             byte[] contentBytes = Encoding.UTF8.GetBytes(csvContent);
             string contentType = "text/csv";
 

AS1024.GeoFeed/Program.cs

@@ -1,8 +1,9 @@
 using AS1024.GeoFeed.Core.Interfaces;
 using AS1024.GeoFeed.Core.GeoFeedPreloader;
-using AS1024.GeoFeed.Core.GeoFeedLocalCache;
 using AS1024.GeoFeed.Core.GeoFeedProviders;
 using Microsoft.EntityFrameworkCore;
+using AS1024.GeoFeed.Core.GeoFeedSqliteLocalCache;
+using AS1024.GeoFeed.Core.CacheService;
 
 namespace AS1024.GeoFeed
 {
@@ -14,11 +15,13 @@ namespace AS1024.GeoFeed
 
             builder.Services.AddHostedService<PreLoadGeoFeed>();
             builder.Services.AddTransient<IGeoFeedProvider, NetBoxGeoFeedProvider>();
+            builder.Services.AddDbContext<GeoFeedCacheDbContext>(
+                options =>
+                {
+                    options.UseSqlite(builder.Configuration.GetConnectionString("LocalFeedCache"));
+                });
+            builder.Services.AddScoped<IGeoFeedPersistentCacheProvider, GeoFeedSqliteCache>();
             builder.Services.AddHostedService<GeoFeedCacheService>();
-            builder.Services.AddDbContext<GeoFeedCacheDbContext>(options =>
-            {
-                options.UseSqlite(builder.Configuration.GetConnectionString("LocalFeedCache"));
-            });
             builder.Services.AddHttpClient();
             builder.Services.AddMemoryCache();
             // Add services to the container.