136 lines
4.7 KiB
Markdown
136 lines
4.7 KiB
Markdown
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# Google Cloud for Go
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[](https://travis-ci.org/GoogleCloudPlatform/gcloud-golang)
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**NOTE:** These packages are experimental, and may occasionally make
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backwards-incompatible changes.
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**NOTE:** Github repo is a mirror of [https://code.googlesource.com/gocloud](https://code.googlesource.com/gocloud).
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Go packages for Google Cloud Platform services. Supported APIs include:
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* Google Cloud Datastore
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* Google Cloud Storage
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* Google Cloud Pub/Sub
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* Google Cloud Container Engine
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``` go
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import "google.golang.org/cloud"
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```
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Documentation and examples are available at
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[https://godoc.org/google.golang.org/cloud](https://godoc.org/google.golang.org/cloud).
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## Authorization
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Authorization, throughout the package, is delegated to the godoc.org/golang.org/x/oauth2.
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Refer to the [godoc documentation](https://godoc.org/golang.org/x/oauth2)
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for examples on using oauth2 with the Cloud package.
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## Google Cloud Datastore
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[Google Cloud Datastore][cloud-datastore] ([docs][cloud-datastore-docs]) is a fully
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managed, schemaless database for storing non-relational data. Cloud Datastore
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automatically scales with your users and supports ACID transactions, high availability
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of reads and writes, strong consistency for reads and ancestor queries, and eventual
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consistency for all other queries.
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Follow the [activation instructions][cloud-datastore-activation] to use the Google
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Cloud Datastore API with your project.
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[https://godoc.org/google.golang.org/cloud/datastore](https://godoc.org/google.golang.org/cloud/datastore)
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```go
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type Post struct {
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Title string
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Body string `datastore:",noindex"`
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PublishedAt time.Time
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}
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keys := []*datastore.Key{
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datastore.NewKey(ctx, "Post", "post1", 0, nil),
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datastore.NewKey(ctx, "Post", "post2", 0, nil),
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}
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posts := []*Post{
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{Title: "Post 1", Body: "...", PublishedAt: time.Now()},
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{Title: "Post 2", Body: "...", PublishedAt: time.Now()},
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}
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if _, err := datastore.PutMulti(ctx, keys, posts); err != nil {
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log.Println(err)
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}
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```
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## Google Cloud Storage
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[Google Cloud Storage][cloud-storage] ([docs][cloud-storage-docs]) allows you to store
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data on Google infrastructure with very high reliability, performance and availability,
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and can be used to distribute large data objects to users via direct download.
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[https://godoc.org/google.golang.org/cloud/storage](https://godoc.org/google.golang.org/cloud/storage)
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```go
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// Read the object1 from bucket.
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rc, err := storage.NewReader(ctx, "bucket", "object1")
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if err != nil {
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log.Fatal(err)
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}
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slurp, err := ioutil.ReadAll(rc)
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rc.Close()
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if err != nil {
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log.Fatal(err)
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}
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```
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## Google Cloud Pub/Sub (Alpha)
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> Google Cloud Pub/Sub is in **Alpha status**. As a result, it might change in
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> backward-incompatible ways and is not recommended for production use. It is not
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> subject to any SLA or deprecation policy.
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[Google Cloud Pub/Sub][cloud-pubsub] ([docs][cloud-pubsub-docs]) allows you to connect
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your services with reliable, many-to-many, asynchronous messaging hosted on Google's
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infrastructure. Cloud Pub/Sub automatically scales as you need it and provides a foundation
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for building your own robust, global services.
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[https://godoc.org/google.golang.org/cloud/pubsub](https://godoc.org/google.golang.org/cloud/pubsub)
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```go
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// Publish "hello world" on topic1.
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msgIDs, err := pubsub.Publish(ctx, "topic1", &pubsub.Message{
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Data: []byte("hello world"),
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})
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if err != nil {
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log.Println(err)
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}
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// Pull messages via subscription1.
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msgs, err := pubsub.Pull(ctx, "subscription1", 1)
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if err != nil {
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log.Println(err)
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}
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```
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## Contributing
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Contributions are welcome. Please, see the
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[CONTRIBUTING](https://github.com/GoogleCloudPlatform/gcloud-golang/blob/master/CONTRIBUTING.md)
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document for details. We're using Gerrit for our code reviews. Please don't open pull
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requests against this repo, new pull requests will be automatically closed.
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Please note that this project is released with a Contributor Code of Conduct.
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By participating in this project you agree to abide by its terms.
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See [Contributor Code of Conduct](https://github.com/GoogleCloudPlatform/gcloud-golang/blob/master/CONTRIBUTING.md#contributor-code-of-conduct)
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for more information.
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[cloud-datastore]: https://cloud.google.com/datastore/
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[cloud-datastore-docs]: https://cloud.google.com/datastore/docs
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[cloud-datastore-activation]: https://cloud.google.com/datastore/docs/activate
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[cloud-pubsub]: https://cloud.google.com/pubsub/
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[cloud-pubsub-docs]: https://cloud.google.com/pubsub/docs
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[cloud-storage]: https://cloud.google.com/storage/
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[cloud-storage-docs]: https://cloud.google.com/storage/docs/overview
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[cloud-storage-create-bucket]: https://cloud.google.com/storage/docs/cloud-console#_creatingbuckets
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