Enable post to be deleted

myapp/src/main/java/com/example/myapp/BlogController.java

@@ -65,9 +65,12 @@ public String updatePost(@PathVariable("postId") long id, Model model, Post post
 
     }
 
-    @DeleteMapping("/posts/{postId}")
-    public String deletePost() {
-        //TODO: logic responsible for deleting a post
-        return null;
+    @GetMapping("/posts/{postId}/delete")
+    public String deletePost(@PathVariable("postId") long id, Model model) {
+        Post recordedPost = postRepository.findById(id)
+                .orElseThrow(() -> new IllegalArgumentException("Invalid Post Id:" + id));
+        postRepository.delete(recordedPost);
+        model.addAttribute("posts", postRepository.findAll());
+        return "blog/index";
     }
 }

myapp/src/main/resources/templates/blog/index.html

@@ -11,6 +11,7 @@ <h1>Blog</h1>
     <dd>
         <a th:href="@{/posts/{id}(id=${post.id})}">Show</a>
         <a th:href="@{/posts/{id}/edit(id=${post.id})}">Edit</a>
+        <a th:href="@{/posts/{id}/delete(id=${post.id})}">Delete</a>
     </dd>
 </dl>