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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 LibraryAPI.Models;
namespace LibraryAPI.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class BooksController : ControllerBase
{
private readonly LibraryContext _context;
public BooksController(LibraryContext context)
{
_context = context;
}
// GET: api/Books
[HttpGet]
public async Task<ActionResult<IEnumerable<Book>>> GetBooks()
{
if (_context.Books == null)
{
return NotFound();
}
return await _context.Books.ToListAsync();
}
// GET: api/Books/5
[HttpGet("{id}")]
public async Task<ActionResult<Book>> GetBook(long id)
{
if (_context.Books == null)
{
return NotFound();
}
var book = await _context.Books.FindAsync(id);
if (book == null)
{
return NotFound();
}
return book;
}
// PUT: api/Books/5
// To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
[HttpPut("{id}")]
public async Task<IActionResult> PutBook(long id, Book book)
{
if (id != book.Id)
{
return BadRequest();
}
_context.Entry(book).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BookExists(id))
{
return NotFound();
}
else
{
throw;
}
}
return NoContent();
}
// POST: api/Books
// To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
[HttpPost]
public async Task<ActionResult<Book>> PostBook(Book book)
{
if (_context.Books == null)
{
return Problem("Entity set 'LibraryContext.Books' is null.");
}
_context.Books.Add(book);
await _context.SaveChangesAsync();
return CreatedAtAction("GetBook", new { id = book.Id }, book);
}
// DELETE: api/Books/5
[HttpDelete("{id}")]
public async Task<IActionResult> DeleteBook(long id)
{
if (_context.Books == null)
{
return NotFound();
}
var book = await _context.Books.FindAsync(id);
if (book == null)
{
return NotFound();
}
_context.Books.Remove(book);
await _context.SaveChangesAsync();
return NoContent();
}
private bool BookExists(long id)
{
return (_context.Books?.Any(e => e.Id == id)).GetValueOrDefault();
}
}
}
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