From 766d9635dc09886707213cdbafa8a783a143ce84 Mon Sep 17 00:00:00 2001
From: HombreLaser <sebastian-440@live.com>
Date: Tue, 20 Sep 2022 20:21:39 -0500
Subject: Añadidas más rutas
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---
 Controllers/AuthorsController.cs | 14 +++++++++++++-
 Controllers/BooksController.cs   | 19 +++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/Controllers/AuthorsController.cs b/Controllers/AuthorsController.cs
index 845708b..647a7e5 100644
--- a/Controllers/AuthorsController.cs
+++ b/Controllers/AuthorsController.cs
@@ -13,7 +13,7 @@ namespace LibraryAPI.Controllers {
         }
 
         [HttpGet]
-        public async Task<ActionResult<IEnumerable<Author>>> getAuthors() {
+        public async Task<ActionResult<IEnumerable<Author>>> GetAuthors() {
             if(_context.Authors == null) {
                 return NotFound();
             }
@@ -34,6 +34,18 @@ namespace LibraryAPI.Controllers {
             return author;
         }
 
+        // Obtener los libros de un autor.
+        [HttpGet("{id}/books")]
+        public async Task<ActionResult<IEnumerable<Book>>> GetAuthorBooks(long id) {
+            return await _context.Books.Where(x => x.AuthorId == id).ToListAsync();
+        }
+
+        // Obtener primer objeto de la tabla.
+        [HttpGet("first")]
+        public async Task<ActionResult<Author>> GetFirst() {
+            return await _context.Authors.FirstOrDefaultAsync();
+        }
+
         [HttpPut("{id}")]
         public async Task<ActionResult> PutAuthor(long id, Author author) {
             if(id != author.Id)
diff --git a/Controllers/BooksController.cs b/Controllers/BooksController.cs
index ad336f0..f46f2f0 100644
--- a/Controllers/BooksController.cs
+++ b/Controllers/BooksController.cs
@@ -12,11 +12,30 @@ namespace LibraryAPI.Controllers {
             _context = context;
         }
 
+        /* Listar todos los libros.
+           o, regresar el que tenga un título específico */
         [HttpGet]
         public async Task<ActionResult<IEnumerable<Book>>> GetBooks() {
             return await _context.Books.ToListAsync();
         }
 
+        // Obtener el primer libro de la tabla.
+        [HttpGet("first")]
+        public async Task<ActionResult<Book>> GetFirst() {
+            return await _context.Books.FirstOrDefaultAsync();
+        }
+
+        // Obtener un libro por isbn.
+        [HttpGet("{isbn}")]
+        public async Task<ActionResult<Book>> GetBook([FromRoute] string isbn) {
+            var book = await _context.Books.FirstOrDefaultAsync(x => x.ISBN == isbn);
+
+            if(book == null)
+                return NotFound();
+        
+            return book;
+        }
+
         [HttpGet("{id}")]
         public async Task<ActionResult<Book>> GetBook(long id) {
             if (_context.Books == null)
-- 
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