Add rate limiting, download meta data tracking, more admin metrics, csv download functionality and more tests

Author: ric394

RegistrationWebAPI/Data/DownloadAuditEntity.cs

@@ -0,0 +1,25 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace RegistrationWebAPI.Data;
+
+public class DownloadAuditEntity
+{
+    public Guid Id { get; set; }
+
+    public DateTime DownloadedAtUtc { get; set; } = DateTime.UtcNow;
+
+    [Required]
+    public string UserEmail { get; set; } = string.Empty;
+
+    public Guid? UserId { get; set; }
+
+    [Required]
+    public string DownloadType { get; set; } = string.Empty;
+
+    [Required]
+    public string Version { get; set; } = string.Empty;
+
+    public string? Platform { get; set; }
+
+    public string? DownloadUrl { get; set; }
+}

RegistrationWebAPI/Data/RegistrationDbContext.cs

@@ -9,6 +9,8 @@ public class RegistrationDbContext(DbContextOptions<RegistrationDbContext> optio
 
     public DbSet<OrganisationEntity> Organisations => Set<OrganisationEntity>();
 
+    public DbSet<DownloadAuditEntity> DownloadAudits => Set<DownloadAuditEntity>();
+
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         modelBuilder.Entity<UserEntity>(entity =>
@@ -30,5 +32,15 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
             entity.Property(e => e.Name).IsRequired();
             entity.HasIndex(e => e.Name).IsUnique();
         });
+
+        modelBuilder.Entity<DownloadAuditEntity>(entity =>
+        {
+            entity.HasKey(e => e.Id);
+            entity.Property(e => e.UserEmail).IsRequired();
+            entity.Property(e => e.DownloadType).IsRequired();
+            entity.Property(e => e.Version).IsRequired();
+            entity.HasIndex(e => e.DownloadedAtUtc);
+            entity.HasIndex(e => e.UserEmail);
+        });
     }
 }

RegistrationWebAPI/Migrations/20260527223413_AddDownloadAudits.Designer.cs

@@ -0,0 +1,50 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace RegistrationWebAPI.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddDownloadAudits : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "DownloadAudits",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "TEXT", nullable: false),
+                    DownloadedAtUtc = table.Column<DateTime>(type: "TEXT", nullable: false),
+                    UserEmail = table.Column<string>(type: "TEXT", nullable: false),
+                    UserId = table.Column<Guid>(type: "TEXT", nullable: true),
+                    DownloadType = table.Column<string>(type: "TEXT", nullable: false),
+                    Version = table.Column<string>(type: "TEXT", nullable: false),
+                    Platform = table.Column<string>(type: "TEXT", nullable: true),
+                    DownloadUrl = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_DownloadAudits", x => x.Id);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_DownloadAudits_DownloadedAtUtc",
+                table: "DownloadAudits",
+                column: "DownloadedAtUtc");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_DownloadAudits_UserEmail",
+                table: "DownloadAudits",
+                column: "UserEmail");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "DownloadAudits");
+        }
+    }
+}

RegistrationWebAPI/Migrations/20260527223413_AddDownloadAudits.cs

@@ -17,6 +17,45 @@ protected override void BuildModel(ModelBuilder modelBuilder)
 #pragma warning disable 612, 618
             modelBuilder.HasAnnotation("ProductVersion", "10.0.5");
 
+            modelBuilder.Entity("RegistrationWebAPI.Data.DownloadAuditEntity", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("DownloadType")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("DownloadUrl")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("DownloadedAtUtc")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Platform")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserEmail")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Version")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DownloadedAtUtc");
+
+                    b.HasIndex("UserEmail");
+
+                    b.ToTable("DownloadAudits");
+                });
+
             modelBuilder.Entity("RegistrationWebAPI.Data.OrganisationEntity", b =>
                 {
                     b.Property<Guid>("Id")

RegistrationWebAPI/Migrations/RegistrationDbContextModelSnapshot.cs

@@ -0,0 +1,20 @@
+namespace RegistrationWebAPI.Models;
+
+public class DownloadAuditResponse
+{
+    public Guid Id { get; set; }
+
+    public DateTime DownloadedAtUtc { get; set; }
+
+    public string UserEmail { get; set; } = string.Empty;
+
+    public Guid? UserId { get; set; }
+
+    public string DownloadType { get; set; } = string.Empty;
+
+    public string Version { get; set; } = string.Empty;
+
+    public string? Platform { get; set; }
+
+    public string? DownloadUrl { get; set; }
+}

RegistrationWebAPI/Models/DownloadAuditResponse.cs

@@ -0,0 +1,14 @@
+namespace RegistrationWebAPI.Models;
+
+public class DownloadEventRequest
+{
+    public string Token { get; set; } = string.Empty;
+
+    public string DownloadType { get; set; } = string.Empty;
+
+    public string Version { get; set; } = string.Empty;
+
+    public string? Platform { get; set; }
+
+    public string? DownloadUrl { get; set; }
+}