WebAPI for database integrity added

Restructure the solution
* The project has been split into the database integration "src/webapi" and the Blazor wasm project "src/y4f".

WebAPI
* API with CRUD capabilities

* The main task of the "WebAPI" project is to access the database data and make it available to the Blazor-WASM project via an API.

* GET example of the allergy table via the file "TestFetchAllergienData.razor", which can be tested via the browser "/TestFetchAllergienData".

src/WebApi/Controllers/AllergienController.cs

@@ -0,0 +1,140 @@
+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 WebApi.Models;
+using WebApi.Data;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class AllergienController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public AllergienController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Allergien
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Allergie>>> GetAllergies()
+        {
+          if (_context.Allergies == null)
+          {
+              return NotFound();
+          }
+            return await _context.Allergies.ToListAsync();
+        }
+
+        // GET: api/Allergien/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Allergie>> GetAllergie(int id)
+        {
+          if (_context.Allergies == null)
+          {
+              return NotFound();
+          }
+            var allergie = await _context.Allergies.FindAsync(id);
+
+            if (allergie == null)
+            {
+                return NotFound();
+            }
+
+            return allergie;
+        }
+
+        // PUT: api/Allergien/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutAllergie(int id, Allergie allergie)
+        {
+            if (id != allergie.Idallergie)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(allergie).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!AllergieExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Allergien
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Allergie>> PostAllergie(Allergie allergie)
+        {
+          if (_context.Allergies == null)
+          {
+              return Problem("Entity set 'WebApiContext.Allergies'  is null.");
+          }
+            _context.Allergies.Add(allergie);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (AllergieExists(allergie.Idallergie))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetAllergie", new { id = allergie.Idallergie }, allergie);
+        }
+
+        // DELETE: api/Allergien/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteAllergie(int id)
+        {
+            if (_context.Allergies == null)
+            {
+                return NotFound();
+            }
+            var allergie = await _context.Allergies.FindAsync(id);
+            if (allergie == null)
+            {
+                return NotFound();
+            }
+
+            _context.Allergies.Remove(allergie);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool AllergieExists(int id)
+        {
+            return (_context.Allergies?.Any(e => e.Idallergie == id)).GetValueOrDefault();
+        }
+
+
+    }
+}

src/WebApi/Controllers/BestellungspositionenController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class BestellungspositionenController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public BestellungspositionenController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Bestellungspositionen
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Bestellungsposition>>> GetBestellungspositions()
+        {
+          if (_context.Bestellungspositions == null)
+          {
+              return NotFound();
+          }
+            return await _context.Bestellungspositions.ToListAsync();
+        }
+
+        // GET: api/Bestellungspositionen/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Bestellungsposition>> GetBestellungsposition(int id)
+        {
+          if (_context.Bestellungspositions == null)
+          {
+              return NotFound();
+          }
+            var bestellungsposition = await _context.Bestellungspositions.FindAsync(id);
+
+            if (bestellungsposition == null)
+            {
+                return NotFound();
+            }
+
+            return bestellungsposition;
+        }
+
+        // PUT: api/Bestellungspositionen/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutBestellungsposition(int id, Bestellungsposition bestellungsposition)
+        {
+            if (id != bestellungsposition.Idbestellung)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(bestellungsposition).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!BestellungspositionExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Bestellungspositionen
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Bestellungsposition>> PostBestellungsposition(Bestellungsposition bestellungsposition)
+        {
+          if (_context.Bestellungspositions == null)
+          {
+              return Problem("Entity set 'WebApiContext.Bestellungspositions'  is null.");
+          }
+            _context.Bestellungspositions.Add(bestellungsposition);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (BestellungspositionExists(bestellungsposition.Idbestellung))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetBestellungsposition", new { id = bestellungsposition.Idbestellung }, bestellungsposition);
+        }
+
+        // DELETE: api/Bestellungspositionen/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteBestellungsposition(int id)
+        {
+            if (_context.Bestellungspositions == null)
+            {
+                return NotFound();
+            }
+            var bestellungsposition = await _context.Bestellungspositions.FindAsync(id);
+            if (bestellungsposition == null)
+            {
+                return NotFound();
+            }
+
+            _context.Bestellungspositions.Remove(bestellungsposition);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool BestellungspositionExists(int id)
+        {
+            return (_context.Bestellungspositions?.Any(e => e.Idbestellung == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Controllers/KundenController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class KundenController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public KundenController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Kunden
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Kunde>>> GetKundes()
+        {
+          if (_context.Kundes == null)
+          {
+              return NotFound();
+          }
+            return await _context.Kundes.ToListAsync();
+        }
+
+        // GET: api/Kunden/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Kunde>> GetKunde(int id)
+        {
+          if (_context.Kundes == null)
+          {
+              return NotFound();
+          }
+            var kunde = await _context.Kundes.FindAsync(id);
+
+            if (kunde == null)
+            {
+                return NotFound();
+            }
+
+            return kunde;
+        }
+
+        // PUT: api/Kunden/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutKunde(int id, Kunde kunde)
+        {
+            if (id != kunde.Idkunde)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(kunde).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!KundeExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Kunden
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Kunde>> PostKunde(Kunde kunde)
+        {
+          if (_context.Kundes == null)
+          {
+              return Problem("Entity set 'WebApiContext.Kundes'  is null.");
+          }
+            _context.Kundes.Add(kunde);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (KundeExists(kunde.Idkunde))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetKunde", new { id = kunde.Idkunde }, kunde);
+        }
+
+        // DELETE: api/Kunden/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteKunde(int id)
+        {
+            if (_context.Kundes == null)
+            {
+                return NotFound();
+            }
+            var kunde = await _context.Kundes.FindAsync(id);
+            if (kunde == null)
+            {
+                return NotFound();
+            }
+
+            _context.Kundes.Remove(kunde);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool KundeExists(int id)
+        {
+            return (_context.Kundes?.Any(e => e.Idkunde == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Controllers/MenuitemkategoriesController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class MenuitemkategoriesController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public MenuitemkategoriesController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Menuitemkategories
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Menuitemkategorie>>> GetMenuitemkategories()
+        {
+          if (_context.Menuitemkategories == null)
+          {
+              return NotFound();
+          }
+            return await _context.Menuitemkategories.ToListAsync();
+        }
+
+        // GET: api/Menuitemkategories/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Menuitemkategorie>> GetMenuitemkategorie(int id)
+        {
+          if (_context.Menuitemkategories == null)
+          {
+              return NotFound();
+          }
+            var menuitemkategorie = await _context.Menuitemkategories.FindAsync(id);
+
+            if (menuitemkategorie == null)
+            {
+                return NotFound();
+            }
+
+            return menuitemkategorie;
+        }
+
+        // PUT: api/Menuitemkategories/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutMenuitemkategorie(int id, Menuitemkategorie menuitemkategorie)
+        {
+            if (id != menuitemkategorie.IdmenuItemKategorie)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(menuitemkategorie).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!MenuitemkategorieExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Menuitemkategories
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Menuitemkategorie>> PostMenuitemkategorie(Menuitemkategorie menuitemkategorie)
+        {
+          if (_context.Menuitemkategories == null)
+          {
+              return Problem("Entity set 'WebApiContext.Menuitemkategories'  is null.");
+          }
+            _context.Menuitemkategories.Add(menuitemkategorie);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (MenuitemkategorieExists(menuitemkategorie.IdmenuItemKategorie))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetMenuitemkategorie", new { id = menuitemkategorie.IdmenuItemKategorie }, menuitemkategorie);
+        }
+
+        // DELETE: api/Menuitemkategories/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteMenuitemkategorie(int id)
+        {
+            if (_context.Menuitemkategories == null)
+            {
+                return NotFound();
+            }
+            var menuitemkategorie = await _context.Menuitemkategories.FindAsync(id);
+            if (menuitemkategorie == null)
+            {
+                return NotFound();
+            }
+
+            _context.Menuitemkategories.Remove(menuitemkategorie);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool MenuitemkategorieExists(int id)
+        {
+            return (_context.Menuitemkategories?.Any(e => e.IdmenuItemKategorie == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Controllers/MenuitemsController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class MenuitemsController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public MenuitemsController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Menuitems
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Menuitem>>> GetMenuitems()
+        {
+          if (_context.Menuitems == null)
+          {
+              return NotFound();
+          }
+            return await _context.Menuitems.ToListAsync();
+        }
+
+        // GET: api/Menuitems/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Menuitem>> GetMenuitem(int id)
+        {
+          if (_context.Menuitems == null)
+          {
+              return NotFound();
+          }
+            var menuitem = await _context.Menuitems.FindAsync(id);
+
+            if (menuitem == null)
+            {
+                return NotFound();
+            }
+
+            return menuitem;
+        }
+
+        // PUT: api/Menuitems/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutMenuitem(int id, Menuitem menuitem)
+        {
+            if (id != menuitem.IdmenuItem)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(menuitem).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!MenuitemExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Menuitems
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Menuitem>> PostMenuitem(Menuitem menuitem)
+        {
+          if (_context.Menuitems == null)
+          {
+              return Problem("Entity set 'WebApiContext.Menuitems'  is null.");
+          }
+            _context.Menuitems.Add(menuitem);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (MenuitemExists(menuitem.IdmenuItem))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetMenuitem", new { id = menuitem.IdmenuItem }, menuitem);
+        }
+
+        // DELETE: api/Menuitems/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteMenuitem(int id)
+        {
+            if (_context.Menuitems == null)
+            {
+                return NotFound();
+            }
+            var menuitem = await _context.Menuitems.FindAsync(id);
+            if (menuitem == null)
+            {
+                return NotFound();
+            }
+
+            _context.Menuitems.Remove(menuitem);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool MenuitemExists(int id)
+        {
+            return (_context.Menuitems?.Any(e => e.IdmenuItem == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Controllers/MenuitemueberkategoriesController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class MenuitemueberkategoriesController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public MenuitemueberkategoriesController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Menuitemueberkategories
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Menuitemueberkategorie>>> GetMenuitemueberkategories()
+        {
+          if (_context.Menuitemueberkategories == null)
+          {
+              return NotFound();
+          }
+            return await _context.Menuitemueberkategories.ToListAsync();
+        }
+
+        // GET: api/Menuitemueberkategories/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Menuitemueberkategorie>> GetMenuitemueberkategorie(int id)
+        {
+          if (_context.Menuitemueberkategories == null)
+          {
+              return NotFound();
+          }
+            var menuitemueberkategorie = await _context.Menuitemueberkategories.FindAsync(id);
+
+            if (menuitemueberkategorie == null)
+            {
+                return NotFound();
+            }
+
+            return menuitemueberkategorie;
+        }
+
+        // PUT: api/Menuitemueberkategories/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutMenuitemueberkategorie(int id, Menuitemueberkategorie menuitemueberkategorie)
+        {
+            if (id != menuitemueberkategorie.IdmenuItemUeberkategorie)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(menuitemueberkategorie).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!MenuitemueberkategorieExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Menuitemueberkategories
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Menuitemueberkategorie>> PostMenuitemueberkategorie(Menuitemueberkategorie menuitemueberkategorie)
+        {
+          if (_context.Menuitemueberkategories == null)
+          {
+              return Problem("Entity set 'WebApiContext.Menuitemueberkategories'  is null.");
+          }
+            _context.Menuitemueberkategories.Add(menuitemueberkategorie);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (MenuitemueberkategorieExists(menuitemueberkategorie.IdmenuItemUeberkategorie))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetMenuitemueberkategorie", new { id = menuitemueberkategorie.IdmenuItemUeberkategorie }, menuitemueberkategorie);
+        }
+
+        // DELETE: api/Menuitemueberkategories/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteMenuitemueberkategorie(int id)
+        {
+            if (_context.Menuitemueberkategories == null)
+            {
+                return NotFound();
+            }
+            var menuitemueberkategorie = await _context.Menuitemueberkategories.FindAsync(id);
+            if (menuitemueberkategorie == null)
+            {
+                return NotFound();
+            }
+
+            _context.Menuitemueberkategories.Remove(menuitemueberkategorie);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool MenuitemueberkategorieExists(int id)
+        {
+            return (_context.Menuitemueberkategories?.Any(e => e.IdmenuItemUeberkategorie == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Controllers/RabatteController.cs

@@ -0,0 +1,138 @@
+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 WebApi.Data;
+using WebApi.Models;
+
+namespace WebApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class RabatteController : ControllerBase
+    {
+        private readonly WebApiContext _context;
+
+        public RabatteController(WebApiContext context)
+        {
+            _context = context;
+        }
+
+        // GET: api/Rabatte
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<Rabatt>>> GetRabatts()
+        {
+          if (_context.Rabatts == null)
+          {
+              return NotFound();
+          }
+            return await _context.Rabatts.ToListAsync();
+        }
+
+        // GET: api/Rabatte/5
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Rabatt>> GetRabatt(int id)
+        {
+          if (_context.Rabatts == null)
+          {
+              return NotFound();
+          }
+            var rabatt = await _context.Rabatts.FindAsync(id);
+
+            if (rabatt == null)
+            {
+                return NotFound();
+            }
+
+            return rabatt;
+        }
+
+        // PUT: api/Rabatte/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public async Task<IActionResult> PutRabatt(int id, Rabatt rabatt)
+        {
+            if (id != rabatt.Idrabatt)
+            {
+                return BadRequest();
+            }
+
+            _context.Entry(rabatt).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!RabattExists(id))
+                {
+                    return NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return NoContent();
+        }
+
+        // POST: api/Rabatte
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public async Task<ActionResult<Rabatt>> PostRabatt(Rabatt rabatt)
+        {
+          if (_context.Rabatts == null)
+          {
+              return Problem("Entity set 'WebApiContext.Rabatts'  is null.");
+          }
+            _context.Rabatts.Add(rabatt);
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (DbUpdateException)
+            {
+                if (RabattExists(rabatt.Idrabatt))
+                {
+                    return Conflict();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return CreatedAtAction("GetRabatt", new { id = rabatt.Idrabatt }, rabatt);
+        }
+
+        // DELETE: api/Rabatte/5
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteRabatt(int id)
+        {
+            if (_context.Rabatts == null)
+            {
+                return NotFound();
+            }
+            var rabatt = await _context.Rabatts.FindAsync(id);
+            if (rabatt == null)
+            {
+                return NotFound();
+            }
+
+            _context.Rabatts.Remove(rabatt);
+            await _context.SaveChangesAsync();
+
+            return NoContent();
+        }
+
+        private bool RabattExists(int id)
+        {
+            return (_context.Rabatts?.Any(e => e.Idrabatt == id)).GetValueOrDefault();
+        }
+    }
+}

src/WebApi/Data/WebApiContext.cs

@@ -0,0 +1,230 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using WebApi.Models;
+
+namespace WebApi.Data;
+
+public partial class WebApiContext : DbContext
+{
+    public WebApiContext(DbContextOptions<WebApiContext> options)
+        : base(options)
+    {
+    }
+
+    public virtual DbSet<Allergie> Allergies { get; set; }
+
+    public virtual DbSet<Bestellungsposition> Bestellungspositions { get; set; }
+
+    public virtual DbSet<Kunde> Kundes { get; set; }
+
+    public virtual DbSet<Menuitem> Menuitems { get; set; }
+
+    public virtual DbSet<Menuitemkategorie> Menuitemkategories { get; set; }
+
+    public virtual DbSet<Menuitemueberkategorie> Menuitemueberkategories { get; set; }
+
+    public virtual DbSet<Rabatt> Rabatts { get; set; }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder
+            .UseCollation("utf8_general_ci")
+            .HasCharSet("utf8");
+
+        modelBuilder.Entity<Allergie>(entity =>
+        {
+            entity.HasKey(e => e.Idallergie).HasName("PRIMARY");
+
+            entity.ToTable("allergie");
+
+            entity.Property(e => e.Idallergie)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDAllergie");
+            entity.Property(e => e.Beschreibung).HasMaxLength(45);
+        });
+
+        modelBuilder.Entity<Bestellungsposition>(entity =>
+        {
+            entity.HasKey(e => e.Idbestellung).HasName("PRIMARY");
+
+            entity.ToTable("bestellungsposition");
+
+            entity.HasIndex(e => e.KundeIdkunde, "fk_Bestellung_Kunde");
+
+            entity.HasIndex(e => e.RabattIdrabatt, "fk_Bestellungsposition_Rabatt1");
+
+            entity.Property(e => e.Idbestellung)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDBestellung");
+            entity.Property(e => e.Datum).HasColumnType("datetime");
+            entity.Property(e => e.KundeIdkunde)
+                .HasColumnType("int(11)")
+                .HasColumnName("Kunde_IDKunde");
+            entity.Property(e => e.Menge).HasColumnType("int(11)");
+            entity.Property(e => e.RabattIdrabatt)
+                .HasColumnType("int(11)")
+                .HasColumnName("Rabatt_IDRabatt");
+
+            entity.HasOne(d => d.KundeIdkundeNavigation).WithMany(p => p.Bestellungspositions)
+                .HasForeignKey(d => d.KundeIdkunde)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_Bestellung_Kunde");
+
+            entity.HasOne(d => d.RabattIdrabattNavigation).WithMany(p => p.Bestellungspositions)
+                .HasForeignKey(d => d.RabattIdrabatt)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_Bestellungsposition_Rabatt1");
+
+            entity.HasMany(d => d.MenuItemIdmenuItems).WithMany(p => p.BestellungspositionIdbestellungs)
+                .UsingEntity<Dictionary<string, object>>(
+                    "BestellungspositionHasMenuitem",
+                    r => r.HasOne<Menuitem>().WithMany()
+                        .HasForeignKey("MenuItemIdmenuItem")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_Bestellungsposition_has_MenuItem_MenuItem1"),
+                    l => l.HasOne<Bestellungsposition>().WithMany()
+                        .HasForeignKey("BestellungspositionIdbestellung")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_Bestellungsposition_has_MenuItem_Bestellungsposition1"),
+                    j =>
+                    {
+                        j.HasKey("BestellungspositionIdbestellung", "MenuItemIdmenuItem")
+                            .HasName("PRIMARY")
+                            .HasAnnotation("MySql:IndexPrefixLength", new[] { 0, 0 });
+                        j.ToTable("bestellungsposition_has_menuitem");
+                        j.HasIndex(new[] { "MenuItemIdmenuItem" }, "fk_Bestellungsposition_has_MenuItem_MenuItem1");
+                        j.IndexerProperty<int>("BestellungspositionIdbestellung")
+                            .HasColumnType("int(11)")
+                            .HasColumnName("Bestellungsposition_IDBestellung");
+                        j.IndexerProperty<int>("MenuItemIdmenuItem")
+                            .HasColumnType("int(11)")
+                            .HasColumnName("MenuItem_IDMenuItem");
+                    });
+        });
+
+        modelBuilder.Entity<Kunde>(entity =>
+        {
+            entity.HasKey(e => e.Idkunde).HasName("PRIMARY");
+
+            entity.ToTable("kunde");
+
+            entity.Property(e => e.Idkunde)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDKunde");
+            entity.Property(e => e.Code)
+                .HasMaxLength(45)
+                .HasColumnName("code");
+            entity.Property(e => e.Treuepunkte).HasColumnType("int(11)");
+        });
+
+        modelBuilder.Entity<Menuitem>(entity =>
+        {
+            entity.HasKey(e => e.IdmenuItem).HasName("PRIMARY");
+
+            entity.ToTable("menuitem");
+
+            entity.HasIndex(e => e.MenuItemKategorieIdmenuItemKategorie, "fk_MenuItem_MenuItemKategorie1");
+
+            entity.Property(e => e.IdmenuItem)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDMenuItem");
+            entity.Property(e => e.Bezeichnung).HasMaxLength(45);
+            entity.Property(e => e.MenuItemKategorieIdmenuItemKategorie)
+                .HasColumnType("int(11)")
+                .HasColumnName("MenuItemKategorie_IDMenuItemKategorie");
+            entity.Property(e => e.Preis).HasPrecision(8, 2);
+            entity.Property(e => e.Zusatzinformation).HasMaxLength(45);
+
+            entity.HasOne(d => d.MenuItemKategorieIdmenuItemKategorieNavigation).WithMany(p => p.Menuitems)
+                .HasForeignKey(d => d.MenuItemKategorieIdmenuItemKategorie)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_MenuItem_MenuItemKategorie1");
+
+            entity.HasMany(d => d.AllergieIdallergies).WithMany(p => p.MenuItemIdmenuItems)
+                .UsingEntity<Dictionary<string, object>>(
+                    "MenuitemHasAllergie",
+                    r => r.HasOne<Allergie>().WithMany()
+                        .HasForeignKey("AllergieIdallergie")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_MenuItem_has_Allergie_Allergie1"),
+                    l => l.HasOne<Menuitem>().WithMany()
+                        .HasForeignKey("MenuItemIdmenuItem")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_MenuItem_has_Allergie_MenuItem1"),
+                    j =>
+                    {
+                        j.HasKey("MenuItemIdmenuItem", "AllergieIdallergie")
+                            .HasName("PRIMARY")
+                            .HasAnnotation("MySql:IndexPrefixLength", new[] { 0, 0 });
+                        j.ToTable("menuitem_has_allergie");
+                        j.HasIndex(new[] { "AllergieIdallergie" }, "fk_MenuItem_has_Allergie_Allergie1");
+                        j.IndexerProperty<int>("MenuItemIdmenuItem")
+                            .HasColumnType("int(11)")
+                            .HasColumnName("MenuItem_IDMenuItem");
+                        j.IndexerProperty<int>("AllergieIdallergie")
+                            .HasColumnType("int(11)")
+                            .HasColumnName("Allergie_IDAllergie");
+                    });
+        });
+
+        modelBuilder.Entity<Menuitemkategorie>(entity =>
+        {
+            entity.HasKey(e => e.IdmenuItemKategorie).HasName("PRIMARY");
+
+            entity.ToTable("menuitemkategorie");
+
+            entity.HasIndex(e => e.MenuItemUeberkategorieIdmenuItemUeberkategorie, "fk_MenuItemKategorie_MenuItemUeberkategorie1");
+
+            entity.Property(e => e.IdmenuItemKategorie)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDMenuItemKategorie");
+            entity.Property(e => e.Bezeichnung).HasMaxLength(45);
+            entity.Property(e => e.MenuItemUeberkategorieIdmenuItemUeberkategorie)
+                .HasColumnType("int(11)")
+                .HasColumnName("MenuItemUeberkategorie_IDMenuItemUeberkategorie");
+
+            entity.HasOne(d => d.MenuItemUeberkategorieIdmenuItemUeberkategorieNavigation).WithMany(p => p.Menuitemkategories)
+                .HasForeignKey(d => d.MenuItemUeberkategorieIdmenuItemUeberkategorie)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_MenuItemKategorie_MenuItemUeberkategorie1");
+        });
+
+        modelBuilder.Entity<Menuitemueberkategorie>(entity =>
+        {
+            entity.HasKey(e => e.IdmenuItemUeberkategorie).HasName("PRIMARY");
+
+            entity.ToTable("menuitemueberkategorie");
+
+            entity.Property(e => e.IdmenuItemUeberkategorie)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDMenuItemUeberkategorie");
+            entity.Property(e => e.Bezeichnung).HasMaxLength(45);
+        });
+
+        modelBuilder.Entity<Rabatt>(entity =>
+        {
+            entity.HasKey(e => e.Idrabatt).HasName("PRIMARY");
+
+            entity.ToTable("rabatt");
+
+            entity.Property(e => e.Idrabatt)
+                .ValueGeneratedNever()
+                .HasColumnType("int(11)")
+                .HasColumnName("IDRabatt");
+            entity.Property(e => e.GueltigkeitBis).HasColumnType("datetime");
+            entity.Property(e => e.GueltigkeitVon).HasColumnType("datetime");
+            entity.Property(e => e.Prozent).HasPrecision(8, 2);
+        });
+
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}

src/WebApi/Models/Allergie.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Allergie
+{
+    public int Idallergie { get; set; }
+
+    public string? Beschreibung { get; set; }
+
+    public virtual ICollection<Menuitem> MenuItemIdmenuItems { get; set; } = new List<Menuitem>();
+}

src/WebApi/Models/Bestellungsposition.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models; 
+
+public partial class Bestellungsposition
+{
+    public int Idbestellung { get; set; }
+
+    public int? Menge { get; set; }
+
+    public DateTime? Datum { get; set; }
+
+    public int KundeIdkunde { get; set; }
+
+    public int RabattIdrabatt { get; set; }
+
+    public virtual Kunde KundeIdkundeNavigation { get; set; } = null!;
+
+    public virtual Rabatt RabattIdrabattNavigation { get; set; } = null!;
+
+    public virtual ICollection<Menuitem> MenuItemIdmenuItems { get; set; } = new List<Menuitem>();
+}

src/WebApi/Models/Kunde.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Kunde
+{
+    public int Idkunde { get; set; }
+
+    public string? Code { get; set; }
+
+    public int? Treuepunkte { get; set; }
+
+    public virtual ICollection<Bestellungsposition> Bestellungspositions { get; set; } = new List<Bestellungsposition>();
+}

src/WebApi/Models/Menuitem.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Menuitem
+{
+    public int IdmenuItem { get; set; }
+
+    public string? Bezeichnung { get; set; }
+
+    public string? Zusatzinformation { get; set; }
+
+    public decimal? Preis { get; set; }
+
+    public int MenuItemKategorieIdmenuItemKategorie { get; set; }
+
+    public virtual Menuitemkategorie MenuItemKategorieIdmenuItemKategorieNavigation { get; set; } = null!;
+
+    public virtual ICollection<Allergie> AllergieIdallergies { get; set; } = new List<Allergie>();
+
+    public virtual ICollection<Bestellungsposition> BestellungspositionIdbestellungs { get; set; } = new List<Bestellungsposition>();
+}

src/WebApi/Models/Menuitemkategorie.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Menuitemkategorie
+{
+    public int IdmenuItemKategorie { get; set; }
+
+    public string? Bezeichnung { get; set; }
+
+    public int MenuItemUeberkategorieIdmenuItemUeberkategorie { get; set; }
+
+    public virtual Menuitemueberkategorie MenuItemUeberkategorieIdmenuItemUeberkategorieNavigation { get; set; } = null!;
+
+    public virtual ICollection<Menuitem> Menuitems { get; set; } = new List<Menuitem>();
+}

src/WebApi/Models/Menuitemueberkategorie.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Menuitemueberkategorie
+{
+    public int IdmenuItemUeberkategorie { get; set; }
+
+    public string? Bezeichnung { get; set; }
+
+    public virtual ICollection<Menuitemkategorie> Menuitemkategories { get; set; } = new List<Menuitemkategorie>();
+}

src/WebApi/Models/Rabatt.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+
+namespace WebApi.Models;
+
+public partial class Rabatt
+{
+    public int Idrabatt { get; set; }
+
+    public decimal? Prozent { get; set; }
+
+    public DateTime? GueltigkeitVon { get; set; }
+
+    public DateTime? GueltigkeitBis { get; set; }
+
+    public virtual ICollection<Bestellungsposition> Bestellungspositions { get; set; } = new List<Bestellungsposition>();
+}

src/WebApi/Program.cs

@@ -0,0 +1,44 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Net.Http.Headers;
+using WebApi.Data;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+builder.Services.AddDbContext<WebApiContext>(options =>
+{
+	options.UseMySql(builder.Configuration.GetConnectionString("Y4FDB"),
+	Microsoft.EntityFrameworkCore.ServerVersion.Parse("8.0.23-mysql"));
+});
+
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+	app.UseSwagger();
+	app.UseSwaggerUI();
+}
+
+//ip:port from y4f
+app.UseCors(policy =>
+	policy.WithOrigins("http://localhost:5248", "https://localhost:7138")
+	.AllowAnyMethod()
+	.WithHeaders(HeaderNames.ContentType)
+);
+
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

src/WebApi/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:38447",
+      "sslPort": 44303
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5226",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7076;http://localhost:5226",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

src/WebApi/WebApi.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+	<PropertyGroup>
+		<TargetFramework>net7.0</TargetFramework>
+		<Nullable>enable</Nullable>
+		<ImplicitUsings>enable</ImplicitUsings>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.4" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.5">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.5" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.5">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.6" />
+		<PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="7.0.0" />
+		<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+	</ItemGroup>
+</Project>

src/WebApi/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

src/WebApi/appsettings.json

@@ -0,0 +1,12 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "Y4FDB": "Server=localhost;Database=y4f;Uid=user;Pwd=user"
+  }
+}

src/y4f/Pages/Allergene.razor.css

@@ -1,49 +1,49 @@
-
-
-.tg {
-        border-collapse: collapse;
-        border-spacing: 0;
-        margin-left: auto;
-        margin-right: auto;
-    }
-
-    .tg td {
-        border-color: black;
-        border-style: solid;
-        border-width: 1px;
-        font-family: Arial, sans-serif;
-        font-size: 18px;
-        overflow: hidden;
-        padding: 10px 5px;
-        word-break: normal;
-    }
-
-    .tg th {
-        border-color: black;
-        border-style: solid;
-        border-width: 1px;
-        font-family: Arial, sans-serif;
-        font-size: 18px;
-        font-weight: normal;
-        overflow: hidden;
-        padding: 10px 5px;
-        word-break: normal;
-    }
-
-    .tg .tg-c3ow {
-        border-color: inherit;
-        text-align: center;
-        vertical-align: center;
-    }
-
-    .tg .tg-0pky {
-        border-color: inherit;
-        text-align: center;
-        vertical-align: center;
-    }
-
-.icon {
-    width: 100%;
-    max-width: 100px;
-    height: auto;
-}
+
+
+.tg {
+        border-collapse: collapse;
+        border-spacing: 0;
+        margin-left: auto;
+        margin-right: auto;
+    }
+
+    .tg td {
+        border-color: black;
+        border-style: solid;
+        border-width: 1px;
+        font-family: Arial, sans-serif;
+        font-size: 18px;
+        overflow: hidden;
+        padding: 10px 5px;
+        word-break: normal;
+    }
+
+    .tg th {
+        border-color: black;
+        border-style: solid;
+        border-width: 1px;
+        font-family: Arial, sans-serif;
+        font-size: 18px;
+        font-weight: normal;
+        overflow: hidden;
+        padding: 10px 5px;
+        word-break: normal;
+    }
+
+    .tg .tg-c3ow {
+        border-color: inherit;
+        text-align: center;
+        vertical-align: center;
+    }
+
+    .tg .tg-0pky {
+        border-color: inherit;
+        text-align: center;
+        vertical-align: center;
+    }
+
+.icon {
+    width: 100%;
+    max-width: 100px;
+    height: auto;
+}

src/y4f/Pages/TestFetchAllergienData.razor

@@ -0,0 +1,51 @@
+@page "/TestFetchAllergienData"
+
+@inject HttpClient Http
+
+
+<PageTitle>Allergien</PageTitle>
+
+<h1>Allergien</h1>
+
+<p>This component demonstrates fetching data from the mysql server.</p>
+
+@if (allergien == null)
+{
+	<p><em>Loading...</em></p>
+}
+else
+{
+	<table class="table">
+		<thead>
+			<tr>
+				<th>ID</th>
+				<th>Beschreibung</th>
+			</tr>
+		</thead>
+		<tbody>
+			@foreach (var allergie in allergien)
+			{
+				<tr>
+					<td>@allergie.Idallergie</td>
+					<td>@allergie.Beschreibung</td>
+				</tr>
+			}
+		</tbody>
+	</table>
+}
+@code {
+	private const string ServiceEndpoint = "https://localhost:7076/api/Allergien";
+	private Allergie[]? allergien;
+
+	protected override async Task OnInitializedAsync()
+	{
+		allergien = await Http.GetFromJsonAsync<Allergie[]>(ServiceEndpoint);
+	}
+
+	public partial class Allergie
+	{
+		public int Idallergie { get; set; }
+
+		public string? Beschreibung { get; set; }
+	}
+}

src/y4f/README.md

@@ -0,0 +1 @@
+# y4f

y4f.sln

@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.4.33205.214
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "y4f", "y4f.csproj", "{1B083D74-9507-4510-A532-8AAAD1FB6035}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "y4f", "src/y4f/y4f.csproj", "{1B083D74-9507-4510-A532-8AAAD1FB6035}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebApi", "src\WebApi\WebApi.csproj", "{2261B5DE-7B90-46FA-9FC2-1924A64BAF3F}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +17,10 @@ Global
 		{1B083D74-9507-4510-A532-8AAAD1FB6035}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1B083D74-9507-4510-A532-8AAAD1FB6035}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1B083D74-9507-4510-A532-8AAAD1FB6035}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2261B5DE-7B90-46FA-9FC2-1924A64BAF3F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2261B5DE-7B90-46FA-9FC2-1924A64BAF3F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2261B5DE-7B90-46FA-9FC2-1924A64BAF3F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2261B5DE-7B90-46FA-9FC2-1924A64BAF3F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE