Scaffold TeamsController in API project.

dotnet aspnet-codegenerator controller -name TeamsController -async -api -m Team -dc DeadBallZoneLeagueDbContext -outDir Controllers -dbProvider sqlite

EntityFrameworkCore.API/Controllers/TeamsController.cs

@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using EntityFrameworkCore.Data;
+using EntityFrameworkCore.Domain;
+
+namespace EntityFrameworkCore.API.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class TeamsController : ControllerBase
+    {
+        private readonly DeadBallZoneLeagueDbContext _context;
+
+        public TeamsController(DeadBallZoneLeagueDbContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Teams
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Team>>> GetTeams()
+        {
+            return await _context.Teams.ToListAsync();
+        }
+
+        // GET: api/Teams/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Team>> GetTeam(int id)
+        {
+            var team = await _context.Teams.FindAsync(id);
+
+            if (team == null)
+            {
+                return NotFound();
+            }
+
+            return team;
+        }
+
+        // PUT: api/Teams/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutTeam(int id, Team team)
+        {
+            if (id != team.Id)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(team).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!TeamExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Teams
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Team>> PostTeam(Team team)
+        {
+            _context.Teams.Add(team);
+            await _context.SaveChangesAsync();
+
+            return CreatedAtAction("GetTeam", new { id = team.Id }, team);
+        }
+
+        // DELETE: api/Teams/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteTeam(int id)
+        {
+            var team = await _context.Teams.FindAsync(id);
+            if (team == null)
+            {
+                return NotFound();
+            }
+
+            _context.Teams.Remove(team);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool TeamExists(int id)
+        {
+            return _context.Teams.Any(e => e.Id == id);
+        }
+    }
+}

EntityFrameworkCore.API/EntityFrameworkCore.API.csproj

@@ -8,6 +8,16 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="9.0.0" />
   </ItemGroup>
 
   <ItemGroup>

README.md

@@ -84,6 +84,24 @@ A list of installed NuGet packages in this application.
 
 Note that the [Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3) is used for Powershell commands used in the Package Manager Console for Visual Studio and that [Microsoft.EntityFrameworkCore.Design](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Design/9.0.3) is used for cross-platform command tools.
 
+### API project
+
+[Microsoft.VisualStudio.Web.CodeGeneration.Design](https://www.nuget.org/packages/Microsoft.VisualStudio.Web.CodeGeneration.Design/9.0.0)
+
+* `dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design --version 9.0.0`
+
+[Microsoft.EntityFrameworkCore.Design](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Design/9.0.3)
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Design --version 9.0.3`
+
+[Microsoft.EntityFrameworkCore.Sqlite](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Sqlite/9.0.3)
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 9.0.3`
+
+[Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3) *Required for aspnet-codegenerator cli tool.*
+
+* `dotnet add package Microsoft.EntityFrameworkCore.Tools --version 9.0.3`
+
 ### Console project
 
 [Microsoft.EntityFrameworkCore.Tools](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.Tools/9.0.3)
@@ -171,3 +189,17 @@ A web application will make connection to the database on demand, which is a sco
 You cannot create a new context in a file, because a new connection needs to be established every time and also closed, when the database is no longer needed. Also, *no tracking* is recommended, because multiple people can manipulate data.
 
 An Inversion of Control (IoC) container will be used to handle dependancy injection for the DbContext. And also the DbContext will need a constructor with parameters to initialize itself properly.
+
+## Scaffolding
+
+### Scaffolding tool
+
+[ASP.NET Core code generator tool](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/tools/dotnet-aspnet-codegenerator?view=aspnetcore-9.0).
+
+* `dotnet tool install -g dotnet-aspnet-codegenerator` or, if already installed: `update`
+
+To run this tool:
+
+* `dotnet aspnet-codegenerator controller -name TeamsController -async -api -m Team -dc DeadBallZoneLeagueDbContext -outDir Controllers -dbProvider sqlite`
+
+Note that an issue may arise, related to this: https://github.com/dotnet/Scaffolding/issues/3145