1// Copyright 2021 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15// [START storage_generated_storage_ObjectHandle_Key]
16
17package main
18
19import (
20	"context"
21
22	"cloud.google.com/go/storage"
23)
24
25var secretKey []byte
26
27func main() {
28	ctx := context.Background()
29	client, err := storage.NewClient(ctx)
30	if err != nil {
31		// TODO: handle error.
32	}
33	obj := client.Bucket("my-bucket").Object("my-object")
34	// Encrypt the object's contents.
35	w := obj.Key(secretKey).NewWriter(ctx)
36	if _, err := w.Write([]byte("top secret")); err != nil {
37		// TODO: handle error.
38	}
39	if err := w.Close(); err != nil {
40		// TODO: handle error.
41	}
42}
43
44// [END storage_generated_storage_ObjectHandle_Key]
45