README.md•3.05 kB
# Google Cloud Client Libraries for Go
[](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)
Our libraries are compatible with the two most recent major Go
releases, the same [policy](https://go.dev/doc/devel/release#policy) the Go
programming language follows. This means the currently supported versions are:
- Go 1.23
- Go 1.24
## 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)