Update minioapi documentation

pkg/api/minioapi/object_handlers.go

@@ -1,3 +1,19 @@
+/*
+ * Mini Object Storage, (C) 2015 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package minioapi
 
 import (
@@ -8,6 +24,10 @@ import (
 	mstorage "github.com/minio-io/minio/pkg/storage"
 )
 
+// GET Object
+// ----------
+// This implementation of the GET operation retrieves object. To use GET,
+// you must have READ access to the object.
 func (server *minioApi) getObjectHandler(w http.ResponseWriter, req *http.Request) {
 	var object, bucket string
 
@@ -59,6 +79,9 @@ func (server *minioApi) getObjectHandler(w http.ResponseWriter, req *http.Reques
 	}
 }
 
+// HEAD Object
+// -----------
+// The HEAD operation retrieves metadata from an object without returning the object itself.
 func (server *minioApi) headObjectHandler(w http.ResponseWriter, req *http.Request) {
 	var object, bucket string
 	acceptsContentType := getContentType(req)
@@ -96,6 +119,9 @@ func (server *minioApi) headObjectHandler(w http.ResponseWriter, req *http.Reque
 	}
 }
 
+// PUT Object
+// ----------
+// This implementation of the PUT operation adds an object to a bucket.
 func (server *minioApi) putObjectHandler(w http.ResponseWriter, req *http.Request) {
 	var object, bucket string
 	vars := mux.Vars(req)