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Add new "quickstart" samples.
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‎bigquery/bigquery_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START bigquery_quickstart]
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// Sample bigquery_quickstart creates a Google BigQuery dataset.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Google Cloud Datastore client package
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"cloud.google.com/go/bigquery"
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)
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func main() {
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ctx := context.Background()
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// Your Google Cloud Platform project ID
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projectID := "YOUR_PROJECT_ID"
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// Creates a client
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client, err := bigquery.NewClient(ctx, projectID)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The name for the new dataset
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datasetName := "my_new_dataset"
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// Prepares the new dataset
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dataset := client.Dataset(datasetName)
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// Creates the dataset
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if err := dataset.Create(ctx); err != nil {
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log.Fatalf("Failed to create dataset: %v", err)
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}
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fmt.Printf("Dataset %v created", dataset)
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}
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// [END bigquery_quickstart]

‎datastore/datastore_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START datastore_quickstart]
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// Sample datastore_quickstart fetches an entity from Google Cloud Datastore.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Google Cloud Datastore client package
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"cloud.google.com/go/datastore"
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)
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type Task struct {
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Description string
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}
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func main() {
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ctx := context.Background()
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// Your Google Cloud Platform project ID
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projectID := "YOUR_PROJECT_ID"
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// Creates a client
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client, err := datastore.NewClient(ctx, projectID)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The kind for the new entity
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kind := "Task"
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// The name/ID for the new entity
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name := "sampletask1"
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// The Cloud Datastore key for the new entity
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taskKey := datastore.NewKey(ctx, kind, name, 0, nil)
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// Prepares the new entity
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task := new(Task)
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task.Description = "Buy milk"
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// Saves the entity
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if _, err := client.Put(ctx, taskKey, task); err != nil {
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log.Fatalf("Failed to save task: %v", err)
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}
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fmt.Printf("Saved %v: %v", taskKey.String(), task.Description)
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}
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// [END datastore_quickstart]

‎language/language_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START language_quickstart]
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// Sample language_quickstart uses the Google Cloud Natural API to analyze the
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// sentiment of "Hello, world!".
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Google Cloud Natural Language API client package
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language "cloud.google.com/go/language/apiv1"
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languagepb "google.golang.org/genproto/googleapis/cloud/language/v1"
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)
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func main() {
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ctx := context.Background()
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// Creates a client
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client, err := language.NewClient(ctx)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The text to analyze
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text := "Hello, world!"
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// Detects the sentiment of the text
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sentiment, err := client.AnalyzeSentiment(ctx, &languagepb.AnalyzeSentimentRequest{
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Document: &languagepb.Document{
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Source: &languagepb.Document_Content{
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Content: text,
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},
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Type: languagepb.Document_PLAIN_TEXT,
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},
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EncodingType: languagepb.EncodingType_UTF8,
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})
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if err != nil {
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log.Fatalf("Failed to analyze text: %v", err)
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}
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fmt.Printf("Text: %v\n", text)
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if sentiment.DocumentSentiment.Score >= 0 {
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fmt.Printf("Sentiment: positive")
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} else {
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fmt.Printf("Sentiment: negative")
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}
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}
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// [END language_quickstart]

‎logging/logging_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START logging_quickstart]
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// Sample logging_quickstart writes a log entry to Stackdriver Logging.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Stackdriver Logging client package
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"cloud.google.com/go/logging"
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)
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func main() {
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ctx := context.Background()
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// Your Google Cloud Platform project ID
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projectID := "YOUR_PROJECT_ID"
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// Creates a client
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client, err := logging.NewClient(ctx, projectID)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The name of the log to write to
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logName := "my-log"
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// Selects the log to write to
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logger := client.Logger(logName)
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// The data to log
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text := "Hello, world!"
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// Adds an entry to the log buffer
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logger.Log(logging.Entry{Payload: text})
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// Closes the client and flushes the buffer to the Stackdriver Logging service
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err = client.Close()
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if err != nil {
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log.Fatalf("Failed to close client: %v", err)
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}
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fmt.Printf("Logged: %v", text)
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}
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// [END logging_quickstart]

‎pubsub/pubsub_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START pubsub_quickstart]
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// Sample pubsub_quickstart creates a Google Cloud Pub/Sub topic.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Google Cloud Pub/Sub client package
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"cloud.google.com/go/pubsub"
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)
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func main() {
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ctx := context.Background()
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// Your Google Cloud Platform project ID
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projectID := "YOUR_PROJECT_ID"
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// Creates a client
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client, err := pubsub.NewClient(ctx, projectID)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The name for the new topic
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topicName := "my-new-topic"
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// Creates the new topic
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topic, err := client.CreateTopic(ctx, topicName)
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if err != nil {
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log.Fatalf("Failed to create topic: %v", err)
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}
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fmt.Printf("Topic %v created.", topic)
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}
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// [END pubsub_quickstart]

‎storage/storage_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START storage_quickstart]
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// Sample storage_quickstart creates a Google Cloud Storage bucket.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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// Imports the Google Cloud Storage client package
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"cloud.google.com/go/storage"
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)
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func main() {
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ctx := context.Background()
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// Your Google Cloud Platform project ID
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projectID := "YOUR_PROJECT_ID"
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// Creates a client
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client, err := storage.NewClient(ctx)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The name for the new bucket
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bucketName := "my-new-bucket"
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// Prepares a new bucket
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bucket := client.Bucket(bucketName)
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// Creates the new bucket
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if err := bucket.Create(ctx, projectID, nil); err != nil {
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log.Fatalf("Failed to create bucket: %v", err)
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}
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fmt.Printf("Bucket %v created.", bucketName)
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}
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// [END storage_quickstart]

‎translate/translate_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START translate_quickstart]
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// Sample translate_quickstart translates "Hello, world!" into Russian.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"golang.org/x/text/language"
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"log"
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// Imports the Google Cloud Translate client package
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"cloud.google.com/go/translate"
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)
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func main() {
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ctx := context.Background()
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// Creates a client
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client, err := translate.NewClient(ctx)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The text to translate
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text := "Hello, world!"
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// The target language
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target, err := language.Parse("ru")
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if err != nil {
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log.Fatalf("Failed to parse target language: %v", err)
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}
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// Translates some text into Russian
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translations, err := client.Translate(ctx, []string{text}, target, nil)
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if err != nil {
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log.Fatalf("Failed to translate text: %v", err)
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}
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fmt.Printf("Text: %v\n", text)
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fmt.Printf("Translation: %v", translations[0].Text)
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}
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// [END translate_quickstart]

‎vision/vision_quickstart/main.go‎

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// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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// [START vision_quickstart]
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// Sample vision_quickstart uses the Google Cloud Vision API to label an image.
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package main
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import (
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"fmt"
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"golang.org/x/net/context"
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"log"
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"os"
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// Imports the Google Cloud Vision API client package
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"cloud.google.com/go/vision"
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)
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func main() {
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ctx := context.Background()
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// Creates a client
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client, err := vision.NewClient(ctx)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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// The name of the image file to annotate
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fileName := "vision/testdata/cat.jpg"
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file, err := os.Open(fileName)
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if err != nil {
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log.Fatalf("Failed to read file: %v", err)
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}
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defer file.Close()
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image, err := vision.NewImageFromReader(file)
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if err != nil {
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log.Fatalf("Failed to create image: %v", err)
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}
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labels, err := client.DetectLabels(ctx, image, 10)
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fmt.Printf("Labels:\n")
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for _, label := range labels {
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fmt.Println(label.Description)
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}
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}
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// [END vision_quickstart]

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