Google Cloud Client Libraries for Go
Go packages for Google Cloud Platform services.
import "cloud.google.com/go"
To install the packages on your system, do not clone the repo. Instead:
- Change to your project directory:
cd /my/cloud/project - Get the package you want to use. Some products have their own module, so it’s
best to
go getthe package(s) you want to use:
go get cloud.google.com/go/firestore # Replace with the package you want to use.
NOTE: Some of these packages are under development, and may occasionally make backwards-incompatible changes.
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.
client, err := storage.NewClient(ctx)
To authorize using a
JSON key file,
pass
option.WithCredentialsFile
to the NewClient function of the desired package. For example:
client, err := storage.NewClient(ctx, option.WithCredentialsFile("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:
tokenSource := ...
client, err := storage.NewClient(ctx, option.WithTokenSource(tokenSource))