Google storage is a "REST type" service (see the beginning of this chapter for a short introduction) that can store large files (up to 100 Gb with a monthly bandwidth of 300 Go) on Google's replicated infrastructure. This is comparable to Amazon's S3 service.

The information is structured as "objects", which have a "data" component and a "meta-data" component. Objects are immutable once they are created. An object can be suppressed or replaced with another more recent version, but incremental changes are not possible. Objects are put in so-called "buckets" that can be nested.

The main available operations are:

For the time being, the service is available in beta version to a limited number of developers.