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// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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 cloud_test
import (
"cloud.google.com/go/datastore"
"golang.org/x/net/context"
"google.golang.org/api/option"
)
func Example_applicationDefaultCredentials() {
ctx := context.Background()
// Use Google Application Default Credentials to authorize and authenticate the client.
// More information about Application Default Credentials and how to enable is at
// https://developers.google.com/identity/protocols/application-default-credentials.
//
// This is the recommended way of authorizing and authenticating.
//
// Note: The example uses the datastore client, but the same steps apply to
// the other client libraries underneath this package.
client, err := datastore.NewClient(ctx, "project-id")
if err != nil {
// TODO: handle error.
}
// Use the client.
_ = client
}
func Example_serviceAccountFile() {
// Warning: The better way to use service accounts is to set GOOGLE_APPLICATION_CREDENTIALS
// and use the Application Default Credentials.
ctx := context.Background()
// Use a JSON key file associated with a Google service account to
// authenticate and authorize.
// Go to https://console.developers.google.com/permissions/serviceaccounts to create
// and download a service account key for your project.
//
// Note: The example uses the datastore client, but the same steps apply to
// the other client libraries underneath this package.
client, err := datastore.NewClient(ctx,
"project-id",
option.WithServiceAccountFile("/path/to/service-account-key.json"))
if err != nil {
// TODO: handle error.
}
// Use the client.
_ = client
}