get bucket endpoint and test

app/controllers/api/storage.php

@@ -134,6 +134,34 @@ App::get('/v1/storage/buckets')
         ]), Response::MODEL_BUCKET_LIST);
     });
 
+App::get('/v1/storage/buckets/:bucketId')
+    ->desc('Get Bucket')
+    ->groups(['api', 'storage'])
+    ->label('scope', 'buckets.read')
+    ->label('sdk.auth', [APP_AUTH_TYPE_SESSION, APP_AUTH_TYPE_KEY, APP_AUTH_TYPE_JWT])
+    ->label('sdk.namespace', 'storage')
+    ->label('sdk.method', 'getBucket')
+    ->label('sdk.description', '/docs/references/storage/get-bucket.md')
+    ->label('sdk.response.code', Response::STATUS_CODE_OK)
+    ->label('sdk.response.type', Response::CONTENT_TYPE_JSON)
+    ->label('sdk.response.model', Response::MODEL_BUCKET)
+    ->param('bucketId', '', new UID(), 'Bucket unique ID.')
+    ->inject('response')
+    ->inject('projectDB')
+    ->action(function ($bucketId, $response, $projectDB) {
+        /** @var Appwrite\Utopia\Response $response */
+        /** @var Appwrite\Database\Database $projectDB */
+
+        $bucket = $projectDB->getDocument($bucketId);
+
+        if (empty($bucket->getId()) || Database::SYSTEM_COLLECTION_BUCKETS != $bucket->getCollection()) {
+            throw new Exception('Bucket not found', 404);
+        }
+
+        $response->dynamic($bucket, Response::MODEL_BUCKET);
+    });
+
+
 App::post('/v1/storage/files')
     ->desc('Create File')
     ->groups(['api', 'storage'])

tests/e2e/Services/Storage/StorageBase.php

@@ -297,4 +297,44 @@ trait StorageBase
 
         return $data;
     }
+
+    /**
+     * @depends testCreateBucket
+     */
+    public function testGetBucket($data): array
+    {
+        $id = $data['bucketId'] ?? '';
+        /**
+         * Test for SUCCESS
+         */
+        $response = $this->client->call(Client::METHOD_GET, '/storage/buckets/' . $id,
+            array_merge([
+                'content-type' => 'application/json',
+                'x-appwrite-project' => $this->getProject()['$id'],
+            ], $this->getHeaders()));
+        $this->assertEquals(200, $response['headers']['status-code']);
+        $this->assertNotEmpty($response['body']);
+        $this->assertEquals($id, $response['body']['$id']);
+        $this->assertEquals('Test Bucket', $response['body']['name']);
+        
+        /**
+         * Test for FAILURE
+         */
+        
+        $response = $this->client->call(Client::METHOD_GET, '/storage/buckets/empty',
+            array_merge([
+                'content-type' => 'application/json',
+                'x-appwrite-project' => $this->getProject()['$id'],
+            ], $this->getHeaders()));
+        $this->assertEquals(404, $response['headers']['status-code']);
+        
+        $response = $this->client->call(Client::METHOD_GET, '/storage/buckets/id-is-really-long-id-is-really-long-id-is-really-long-id-is-really-long',
+            array_merge([
+                'content-type' => 'application/json',
+                'x-appwrite-project' => $this->getProject()['$id'],
+            ], $this->getHeaders()));
+        $this->assertEquals(400, $response['headers']['status-code']);
+
+        return $data;
+    }
 }