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https://github.com/googleapis/google-cloud-go

Google Cloud Client Libraries for Go.
https://github.com/googleapis/google-cloud-go

cloud-bigquery cloud-datastore cloud-pubsub cloud-storage go golang google-cloud

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Google Cloud Client Libraries for Go.

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# Google Cloud Client Libraries for Go

[![Go Reference](https://pkg.go.dev/badge/cloud.google.com/go.svg)](https://pkg.go.dev/cloud.google.com/go)

Go packages for [Google Cloud Platform](https://cloud.google.com) services.

## Installation

```bash
go get cloud.google.com/go/firestore@latest # Replace firestore with the package you want to use.
```

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

## Supported APIs

For an updated list of all of our released APIs please see our
[reference docs](https://cloud.google.com/go/docs/reference).

## [Go Versions Supported](#supported-versions)

**Note:** As of Jan 1, 2025 the Cloud Client Libraries for Go will support the
two most-recent major Go releases -- the same [policy](https://go.dev/doc/devel/release#policy)
the Go programming language follows.

Our libraries are compatible with at least the three most recent, major Go
releases. They are currently compatible with:

- Go 1.23
- Go 1.22
- Go 1.21

## Authorization

By default, each API will use [Google Application Default Credentials](https://developers.google.com/identity/protocols/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.

```go
client, err := storage.NewClient(ctx)
```

To authorize using a
[JSON key file](https://cloud.google.com/iam/docs/managing-service-account-keys),
pass
[`option.WithCredentialsFile`](https://pkg.go.dev/google.golang.org/api/option#WithCredentialsFile)
to the `NewClient` function of the desired package. For example:

```go
client, err := storage.NewClient(ctx, option.WithCredentialsFile("path/to/keyfile.json"))
```

You can exert more control over authorization by using the
[credentials](https://pkg.go.dev/cloud.google.com/go/auth/credentials) package to
create an [auth.Credentials](https://pkg.go.dev/cloud.google.com/go/auth#Credentials).
Then pass [`option.WithAuthCredentials`](https://pkg.go.dev/google.golang.org/api/option#WithAuthCredentials)
to the `NewClient` function:

```go
creds := ...
client, err := storage.NewClient(ctx, option.WithAuthCredentials(creds))
```

## Contributing

Contributions are welcome. Please, see the
[CONTRIBUTING](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md)
document for details.

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](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md#contributor-code-of-conduct)
for more information.

## Links

- [Go on Google Cloud](https://cloud.google.com/go/home)
- [Getting started with Go on Google Cloud](https://cloud.google.com/go/getting-started)
- [App Engine Quickstart](https://cloud.google.com/appengine/docs/standard/go/quickstart)
- [Cloud Functions Quickstart](https://cloud.google.com/functions/docs/quickstart-go)
- [Cloud Run Quickstart](https://cloud.google.com/run/docs/quickstarts/build-and-deploy#go)