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73 lines
2.6 KiB
Go
73 lines
2.6 KiB
Go
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// Copyright 2016 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cloud_test
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import (
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"cloud.google.com/go/datastore"
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"cloud.google.com/go/pubsub"
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"golang.org/x/net/context"
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"golang.org/x/oauth2/google"
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"google.golang.org/api/option"
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)
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// Google Application Default Credentials is the recommended way to authorize
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// and authenticate clients.
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//
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// For information on how to create and obtain Application Default Credentials, see
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// https://developers.google.com/identity/protocols/application-default-credentials.
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func Example_applicationDefaultCredentials() {
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client, err := datastore.NewClient(context.Background(), "project-id")
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if err != nil {
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// TODO: handle error.
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}
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_ = client // Use the client.
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}
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// You can use a file with credentials to authenticate and authorize, such as a JSON
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// key file associated with a Google service account. Service Account keys can be
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// created and downloaded from
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// https://console.developers.google.com/permissions/serviceaccounts.
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//
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// This example uses the Datastore client, but the same steps apply to
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// the other client libraries underneath this package.
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func Example_credentialsFile() {
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client, err := datastore.NewClient(context.Background(),
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"project-id", option.WithCredentialsFile("/path/to/service-account-key.json"))
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if err != nil {
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// TODO: handle error.
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}
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_ = client // Use the client.
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}
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// In some cases (for instance, you don't want to store secrets on disk), you can
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// create credentials from in-memory JSON and use the WithCredentials option.
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//
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// The google package in this example is at golang.org/x/oauth2/google.
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//
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// This example uses the PubSub client, but the same steps apply to
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// the other client libraries underneath this package.
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func Example_credentialsFromJSON() {
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ctx := context.Background()
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creds, err := google.CredentialsFromJSON(ctx, []byte("JSON creds"), pubsub.ScopePubSub)
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if err != nil {
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// TODO: handle error.
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}
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client, err := pubsub.NewClient(ctx, "project-id", option.WithCredentials(creds))
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if err != nil {
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// TODO: handle error.
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}
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_ = client // Use the client.
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}
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