fix(laravel): set application/ld+json content-type on /contexts/{shortName} (#7973)

Author: soyuka

src/Laravel/Tests/JsonLdTest.php

@@ -304,6 +304,30 @@ public function testApiDocsRegex(): void
         $response->assertNotFound();
     }
 
+    public function testJsonLdContextHasCorrectContentType(): void
+    {
+        $response = $this->get('/api/contexts/Entrypoint', ['accept' => 'application/ld+json']);
+        $response->assertStatus(200);
+        $response->assertHeader('content-type', 'application/ld+json; charset=utf-8');
+        $this->assertArrayHasKey('@context', $response->json());
+    }
+
+    public function testJsonLdResourceContextHasCorrectContentType(): void
+    {
+        $response = $this->get('/api/contexts/Book', ['accept' => 'application/ld+json']);
+        $response->assertStatus(200);
+        $response->assertHeader('content-type', 'application/ld+json; charset=utf-8');
+        $this->assertArrayHasKey('@context', $response->json());
+    }
+
+    public function testJsonLdContextDefaultsToEntrypoint(): void
+    {
+        $response = $this->get('/api/contexts/', ['accept' => 'application/ld+json']);
+        $response->assertStatus(200);
+        $response->assertHeader('content-type', 'application/ld+json; charset=utf-8');
+        $this->assertArrayHasKey('@context', $response->json());
+    }
+
     public function testHidden(): void
     {
         PostFactory::new()->has(CommentFactory::new()->count(10))->count(10)->create();

src/Laravel/routes/api.php

@@ -80,8 +80,9 @@
 
     Route::group(['prefix' => $prefix], static function (): void {
         Route::group(['middleware' => ApiPlatformMiddleware::class], static function (): void {
-            Route::get('/contexts/{shortName?}{_format?}', ContextAction::class)
-                ->name('api_jsonld_context');
+            Route::get('/contexts/{shortName?}{_format?}', static function (Request $request, ContextAction $contextAction, string $shortName = 'Entrypoint') {
+                return $contextAction($shortName, $request);
+            })->name('api_jsonld_context');
 
             Route::get('/validation_errors/{id}', static fn () => throw new NotExposedHttpException('Not exposed.'))
                 ->name('api_validation_errors')