Update repository, seed and service layers

WebAPI/Controllers/UserController.cs

@@ -0,0 +1,26 @@
+using BusinessLayer.Services;
+using DataAccessLayer.Entities;
+using Microsoft.AspNetCore.Mvc;
+
+namespace WebAPI.Controllers
+{
+    [ApiController]
+    [Route("api/[controller]")]
+    public class UserController(IUserService userService) : ControllerBase
+    {
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<UserAccount>>> GetAll([FromQuery] int? limit, [FromQuery] int? offset)
+        {
+            var users = await userService.GetAllAsync(limit, offset);
+            return Ok(users);
+        }
+
+        [HttpGet("{id:guid}")]
+        public async Task<ActionResult<UserAccount>> GetById(Guid id)
+        {
+            var user = await userService.GetByIdAsync(id);
+            if (user is null) return NotFound();
+            return Ok(user);
+        }
+    }
+}

WebAPI/Controllers/UsersController.cs

@@ -1,107 +0,0 @@
-using BusinessLayer.Services;
-using DataAccessLayer.Entities;
-using Microsoft.AspNetCore.Mvc;
-
-namespace WebAPI.Controllers
-{
-    [ApiController]
-    [Route("api/users")]
-    public class UsersController : ControllerBase
-    {
-        private readonly IUserService _userService;
-
-        public UsersController(IUserService userService)
-        {
-            _userService = userService;
-        }
-
-        // all users
-        [HttpGet]
-        public IActionResult GetAllUsers(
-            [FromQuery] int? limit,
-            [FromQuery] int? offset
-        )
-        {
-            if (offset.HasValue && !limit.HasValue)
-            {
-                return BadRequest("Limit is required when offset is provided.");
-            }
-
-            if (limit.HasValue && limit <= 0)
-            {
-                return BadRequest("Limit must be greater than zero.");
-            }
-
-            if (offset.HasValue && offset < 0)
-            {
-                return BadRequest("Offset cannot be negative.");
-            }
-
-            var users = _userService.GetAll(limit, offset);
-            return Ok(users);
-        }
-
-        [HttpGet("{id:guid}")]
-        public IActionResult GetUserById(Guid id)
-        {
-            var user = _userService.GetById(id);
-            return user is null ? NotFound() : Ok(user);
-        }
-
-        [HttpGet("username/{username}")]
-        public IActionResult GetUserByUsername(string username)
-        {
-            var user = _userService.GetByUsername(username);
-            return user is null ? NotFound() : Ok(user);
-        }
-
-        [HttpGet("email/{email}")]
-        public IActionResult GetUserByEmail(string email)
-        {
-            var user = _userService.GetByEmail(email);
-            return user is null ? NotFound() : Ok(user);
-        }
-
-        [HttpPost]
-        public IActionResult CreateUser([FromBody] UserAccount userAccount)
-        {
-            if (userAccount.UserAccountId == Guid.Empty)
-            {
-                userAccount.UserAccountId = Guid.NewGuid();
-            }
-
-            _userService.Add(userAccount);
-            return CreatedAtAction(
-                nameof(GetUserById),
-                new { id = userAccount.UserAccountId },
-                userAccount
-            );
-        }
-
-        [HttpPut("{id:guid}")]
-        public IActionResult UpdateUser(
-            Guid id,
-            [FromBody] UserAccount userAccount
-        )
-        {
-            if (
-                userAccount.UserAccountId != Guid.Empty
-                && userAccount.UserAccountId != id
-            )
-            {
-                return BadRequest("UserAccountID does not match route id.");
-            }
-
-            userAccount.UserAccountId = id;
-            _userService.Update(userAccount);
-            return NoContent();
-        }
-
-        [HttpDelete("{id:guid}")]
-        public IActionResult DeleteUser(Guid id)
-        {
-            _userService.Delete(id);
-            return NoContent();
-        }
-    }
-}

WebAPI/Infrastructure/DefaultSqlConnectionFactory.cs

@@ -0,0 +1,25 @@
+using DataAccessLayer.Sql;
+using Microsoft.Data.SqlClient;
+
+namespace WebAPI.Infrastructure
+{
+    public class DefaultSqlConnectionFactory : ISqlConnectionFactory
+    {
+        private readonly string _connectionString;
+
+        public DefaultSqlConnectionFactory(IConfiguration configuration)
+        {
+            _connectionString =
+                Environment.GetEnvironmentVariable("DB_CONNECTION_STRING")
+                ?? configuration.GetConnectionString("Default")
+                ?? throw new InvalidOperationException(
+                    "Database connection string not configured. Set DB_CONNECTION_STRING env var or ConnectionStrings:Default."
+                );
+        }
+
+        public SqlConnection CreateConnection()
+        {
+            return new SqlConnection(_connectionString);
+        }
+    }
+}

WebAPI/Program.cs

@@ -1,6 +1,7 @@
 using BusinessLayer.Services;
-using DataAccessLayer;
 using DataAccessLayer.Repositories;
+using DataAccessLayer.Sql;
+using WebAPI.Infrastructure;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -8,9 +9,11 @@ builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
 builder.Services.AddOpenApi();
+
+// Dependency Injection
+builder.Services.AddSingleton<ISqlConnectionFactory, DefaultSqlConnectionFactory>();
 builder.Services.AddScoped<IUserAccountRepository, UserAccountRepository>();
 builder.Services.AddScoped<IUserService, UserService>();
-
 var app = builder.Build();
 
 if (app.Environment.IsDevelopment())