cloud

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Published: Aug 3, 2016 License: Apache-2.0 Imports: 0 Imported by: 0

README

Google Cloud for Go

Build Status GoDoc

import "cloud.google.com/go"

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

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

Go packages for Google Cloud Platform services. Supported APIs are:

Google API Status Package
Datastore beta cloud.google.com/go/datastore
Storage beta cloud.google.com/go/storage
Pub/Sub experimental cloud.google.com/go/pubsub
Bigtable stable cloud.google.com/go/bigtable
BigQuery experimental cloud.google.com/go/bigquery
Logging experimental cloud.google.com/go/logging

Experimental 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.

Manually-configured authorization can be achieved using the golang.org/x/oauth2 package to create an oauth2.TokenSource. This token source can be passed to the NewClient function for the relevant API using a option.WithTokenSource option.

Google Cloud Datastore GoDoc

Google Cloud Datastore (docs) is a fully- managed, schemaless database for storing non-relational data. Cloud Datastore automatically scales with your users and supports ACID transactions, high availability of reads and writes, strong consistency for reads and ancestor queries, and eventual consistency for all other queries.

Follow the activation instructions to use the Google Cloud Datastore API with your project.

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

client, err := datastore.NewClient(ctx, "my-project-id")
if err != nil {
	log.Fatalln(err)
}

Then use that client to interact with the API:

type Post struct {
	Title       string
	Body        string `datastore:",noindex"`
	PublishedAt time.Time
}
keys := []*datastore.Key{
	datastore.NewKey(ctx, "Post", "post1", 0, nil),
	datastore.NewKey(ctx, "Post", "post2", 0, nil),
}
posts := []*Post{
	{Title: "Post 1", Body: "...", PublishedAt: time.Now()},
	{Title: "Post 2", Body: "...", PublishedAt: time.Now()},
}
if _, err := client.PutMulti(ctx, keys, posts); err != nil {
	log.Fatal(err)
}

Google Cloud Storage GoDoc

Google Cloud Storage (docs) allows you to store data on Google infrastructure with very high reliability, performance and availability, and can be used to distribute large data objects to users via direct download.

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

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

client, err := storage.NewClient(ctx)
if err != nil {
	log.Fatal(err)
}
// Read the object1 from bucket.
rc, err := client.Bucket("bucket").Object("object1").NewReader(ctx)
if err != nil {
	log.Fatal(err)
}
defer rc.Close()
body, err := ioutil.ReadAll(rc)
if err != nil {
	log.Fatal(err)
}

Google Cloud Pub/Sub GoDoc

Google Cloud Pub/Sub (docs) allows you to connect your services with reliable, many-to-many, asynchronous messaging hosted on Google's infrastructure. Cloud Pub/Sub automatically scales as you need it and provides a foundation for building your own robust, global services.

// Publish "hello world" on topic1.
msgIDs, err := pubsub.Publish(ctx, "topic1", &pubsub.Message{
	Data: []byte("hello world"),
})
if err != nil {
	log.Println(err)
}
// Pull messages via subscription1.
msgs, err := pubsub.Pull(ctx, "subscription1", 1)
if err != nil {
	log.Println(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.

Documentation

Overview

Package cloud is the root of the packages used to access Google Cloud Services. See https://godoc.org/cloud.google.com/go for a full list of sub-packages.

Directories

Path Synopsis
Package bigquery provides a client for the BigQuery service.
Package bigquery provides a client for the BigQuery service.
Package bigtable is an API to Google Cloud Bigtable.
Package bigtable is an API to Google Cloud Bigtable.
bttest
Package bttest contains test helpers for working with the bigtable package.
Package bttest contains test helpers for working with the bigtable package.
cmd/cbt
Cbt is a tool for doing basic interactions with Cloud Bigtable.
Cbt is a tool for doing basic interactions with Cloud Bigtable.
cmd/emulator
cbtemulator launches the in-memory Cloud Bigtable server on the given address.
cbtemulator launches the in-memory Cloud Bigtable server on the given address.
cmd/loadtest
Loadtest does some load testing through the Go client library for Cloud Bigtable.
Loadtest does some load testing through the Go client library for Cloud Bigtable.
cmd/scantest
Scantest does scan-related load testing against Cloud Bigtable.
Scantest does scan-related load testing against Cloud Bigtable.
internal/cbtrc
Package cbtrc encapsulates common code for reading .cbtrc files.
Package cbtrc encapsulates common code for reading .cbtrc files.
internal/option
Package option contains common code for dealing with client options.
Package option contains common code for dealing with client options.
compute
metadata
Package metadata provides access to Google Compute Engine (GCE) metadata and API service accounts.
Package metadata provides access to Google Compute Engine (GCE) metadata and API service accounts.
Package container contains a Google Container Engine client.
Package container contains a Google Container Engine client.
Package datastore provides a client for Google Cloud Datastore.
Package datastore provides a client for Google Cloud Datastore.
Package errors is a Google Stackdriver Error Reporting library.
Package errors is a Google Stackdriver Error Reporting library.
examples
bigquery/concat_table
concat_table is an example client of the bigquery client library.
concat_table is an example client of the bigquery client library.
bigquery/load
load is an example client of the bigquery client library.
load is an example client of the bigquery client library.
bigquery/query
query is an example client of the bigquery client library.
query is an example client of the bigquery client library.
bigquery/read
read is an example client of the bigquery client library.
read is an example client of the bigquery client library.
bigtable/bigtable-hello
helloworld tracks how often a user has visited the index page.
helloworld tracks how often a user has visited the index page.
bigtable/search
This is a sample web server that uses Cloud Bigtable as the storage layer for a simple document-storage and full-text-search service.
This is a sample web server that uses Cloud Bigtable as the storage layer for a simple document-storage and full-text-search service.
pubsub/cmdline
Package main contains a simple command line tool for Cloud Pub/Sub Cloud Pub/Sub docs: https://cloud.google.com/pubsub/docs
Package main contains a simple command line tool for Cloud Pub/Sub Cloud Pub/Sub docs: https://cloud.google.com/pubsub/docs
pubsub/consumer
Package main contains a client which pulls messages from a subscription and prints them.
Package main contains a client which pulls messages from a subscription and prints them.
storage/appengine
[START sample] Package gcsdemo is an example App Engine app using the Google Cloud Storage API.
[START sample] Package gcsdemo is an example App Engine app using the Google Cloud Storage API.
storage/appenginevm
Package main is an example Mananged VM app using the Google Cloud Storage API.
Package main is an example Mananged VM app using the Google Cloud Storage API.
Package internal provides support for the cloud packages.
Package internal provides support for the cloud packages.
bundler
Package bundler supports bundling (batching) of items.
Package bundler supports bundling (batching) of items.
testutil
Package testutil contains helper functions for writing tests.
Package testutil contains helper functions for writing tests.
Package logging contains a Google Cloud Logging client.
Package logging contains a Google Cloud Logging client.
apiv2/config
Package config is an experimental, auto-generated package for the logging API.
Package config is an experimental, auto-generated package for the logging API.
apiv2/logging
Service for ingesting and querying logs.
Service for ingesting and querying logs.
apiv2/metrics
Package metrics is an experimental, auto-generated package for the logging API.
Package metrics is an experimental, auto-generated package for the logging API.
Package pubsub provides an easy way to publish and receive Google Cloud Pub/Sub messages, hiding the the details of the underlying server RPCs.
Package pubsub provides an easy way to publish and receive Google Cloud Pub/Sub messages, hiding the the details of the underlying server RPCs.
Package storage contains a Google Cloud Storage client.
Package storage contains a Google Cloud Storage client.
Package trace is a Google Stackdriver Trace library.
Package trace is a Google Stackdriver Trace library.

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