GoogleCloudPlatform/google-cloud-go

Name: google-cloud-go

Owner: Google Cloud Platform

Description: Google Cloud Client Libraries for Go

Created: 2014-05-09 11:11:58.0

Updated: 2018-01-18 16:56:46.0

Pushed: 2018-01-18 18:58:36.0

Homepage: https://godoc.org/cloud.google.com/go/

Size: 8040

Language: Go

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README

Google Cloud Client Libraries for Go

GoDoc

Go packages for Google Cloud Platform services.

rt "cloud.google.com/go"

To install the packages on your system,

 get -u cloud.google.com/go/...

NOTE: Some of these packages are under development, and may occasionally make backwards-incompatible changes.

NOTE: Github repo is a mirror of https://code.googlesource.com/gocloud.

News

January 18, 2018

v0.18.0

December 11, 2017

v0.17.0

October 30, 2017

v0.16.0

October 3, 2017

v0.15.0

Older news

Supported APIs

Google API | Status | Package ———————————|————–|———————————————————– BigQuery | stable | cloud.google.com/go/bigquery Bigtable | stable | cloud.google.com/go/bigtable Container | alpha | cloud.google.com/go/container/apiv1 Data Loss Prevention| alpha | cloud.google.com/go/dlp/apiv2beta1 Datastore | stable | cloud.google.com/go/datastore Debugger | alpha | cloud.google.com/go/debugger/apiv2 ErrorReporting | alpha | cloud.google.com/go/errorreporting Firestore | beta | cloud.google.com/go/firestore Language | stable | cloud.google.com/go/language/apiv1 Logging | stable | cloud.google.com/go/logging Monitoring | beta | cloud.google.com/go/monitoring/apiv3 OS Login | alpha | cloud.google.com/compute/docs/oslogin/rest Pub/Sub | beta | cloud.google.com/go/pubsub Spanner | stable | cloud.google.com/go/spanner Speech | stable | cloud.google.com/go/speech/apiv1 Storage | stable | cloud.google.com/go/storage Translation | stable | cloud.google.com/go/translate Video Intelligence| beta | cloud.google.com/go/videointelligence/apiv1beta1 Vision | stable | cloud.google.com/go/vision/apiv1

Alpha status: the API is still being actively developed. As a result, it might change in backward-incompatible ways and is not recommended for production use.

Beta status: the API is largely complete, but still has outstanding features and bugs to be addressed. There may be minor backwards-incompatible changes where necessary.

Stable status: the API is mature and ready for production use. We will continue addressing bugs and feature requests.

Documentation and examples are available at https://godoc.org/cloud.google.com/go

Visit or join the google-api-go-announce group for updates on these packages.

Go Versions Supported

We support the two most recent major versions of Go. If Google App Engine uses an older version, we support that as well. You can see which versions are currently supported by looking at the lines following go: in .travis.yml.

Authorization

By default, each API will use Google Application Default Credentials for authorization credentials used in calling the API endpoints. This will allow your application to run in many environments without requiring explicit configuration.

nt, err := storage.NewClient(ctx)

To authorize using a JSON key file, pass option.WithServiceAccountFile to the NewClient function of the desired package. For example:

nt, err := storage.NewClient(ctx, option.WithServiceAccountFile("path/to/keyfile.json"))

You can exert more control over authorization by using the golang.org/x/oauth2 package to create an oauth2.TokenSource. Then pass option.WithTokenSource to the NewClient function:

nSource := ...
nt, err := storage.NewClient(ctx, option.WithTokenSource(tokenSource))
Cloud Datastore GoDoc
Example Usage

First create a datastore.Client to use throughout your application:

nt, err := datastore.NewClient(ctx, "my-project-id")
rr != nil {
log.Fatal(err)

Then use that client to interact with the API:

 Post struct {
Title       string
Body        string `datastore:",noindex"`
PublishedAt time.Time

 := []*datastore.Key{
datastore.NameKey("Post", "post1", nil),
datastore.NameKey("Post", "post2", nil),

s := []*Post{
{Title: "Post 1", Body: "...", PublishedAt: time.Now()},
{Title: "Post 2", Body: "...", PublishedAt: time.Now()},

, err := client.PutMulti(ctx, keys, posts); err != nil {
log.Fatal(err)
Cloud Storage GoDoc
Example Usage

First create a storage.Client to use throughout your application:

nt, err := storage.NewClient(ctx)
rr != nil {
log.Fatal(err)


o
ead the object1 from bucket.
err := client.Bucket("bucket").Object("object1").NewReader(ctx)
rr != nil {
log.Fatal(err)

r rc.Close()
, err := ioutil.ReadAll(rc)
rr != nil {
log.Fatal(err)
Cloud Pub/Sub GoDoc
Example Usage

First create a pubsub.Client to use throughout your application:

nt, err := pubsub.NewClient(ctx, "project-id")
rr != nil {
log.Fatal(err)

Then use the client to publish and subscribe:

ublish "hello world" on topic1.
c := client.Topic("topic1")
:= topic.Publish(ctx, &pubsub.Message{
Data: []byte("hello world"),

he publish happens asynchronously.
ater, you can get the result from res:

D, err := res.Get(ctx)
rr != nil {
log.Fatal(err)


se a callback to receive messages via subscription1.
:= client.Subscription("subscription1")
= sub.Receive(ctx, func(ctx context.Context, m *pubsub.Message) {
fmt.Println(m.Data)
m.Ack() // Acknowledge that we've consumed the message.

rr != nil {
log.Println(err)
Cloud BigQuery GoDoc
Example Usage

First create a bigquery.Client to use throughout your application:

rr := bigquery.NewClient(ctx, "my-project-ID")
rr != nil {
// TODO: Handle error.

Then use that client to interact with the API:

onstruct a query.
 c.Query(`
SELECT year, SUM(number)
FROM [bigquery-public-data:usa_names.usa_1910_2013]
WHERE name = "William"
GROUP BY year
ORDER BY year

xecute the query.
err := q.Read(ctx)
rr != nil {
// TODO: Handle error.

terate through the results.
{
var values []bigquery.Value
err := it.Next(&values)
if err == iterator.Done {
    break
}
if err != nil {
    // TODO: Handle error.
}
fmt.Println(values)
Stackdriver Logging GoDoc
Example Usage

First create a logging.Client to use throughout your application:

:= context.Background()
nt, err := logging.NewClient(ctx, "my-project")
rr != nil {
// TODO: Handle error.

Usually, you'll want to add log entries to a buffer to be periodically flushed (automatically and asynchronously) to the Stackdriver Logging service.

er := client.Logger("my-log")
er.Log(logging.Entry{Payload: "something happened!"})

Close your client before your program exits, to flush any buffered log entries.

= client.Close()
rr != nil {
// TODO: Handle error.
Cloud Spanner GoDoc
Example Usage

First create a spanner.Client to use throughout your application:

nt, err := spanner.NewClient(ctx, "projects/P/instances/I/databases/D")
rr != nil {
log.Fatal(err)


o
imple Reads And Writes
rr = client.Apply(ctx, []*spanner.Mutation{
spanner.Insert("Users",
    []string{"name", "email"},
    []interface{}{"alice", "a@example.com"})})
rr != nil {
log.Fatal(err)

 err := client.Single().ReadRow(ctx, "Users",
spanner.Key{"alice"}, []string{"email"})
rr != nil {
log.Fatal(err)
Contributing

Contributions are welcome. Please, see the CONTRIBUTING document for details. We're using Gerrit for our code reviews. Please don't open pull requests against this repo, new pull requests will be automatically closed.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See Contributor Code of Conduct for more information.

This work is supported by the National Institutes of Health's National Center for Advancing Translational Sciences, Grant Number U24TR002306. This work is solely the responsibility of the creators and does not necessarily represent the official views of the National Institutes of Health.