Google Cloud Firestore API :

• Client Library Documentation
• Product Documentation

In order to use this library, you first need to go through the following steps:

1. Select or create a Cloud Platform project.
2. Enable the Google Cloud Firestore API.
3. Setup Authentication.

$ gem install google-cloud-firestore

• Read the Client Library Documentation for Google Cloud Firestore API to see other available methods on the client.
• Read the Google Cloud Firestore API Product documentation to learn more about the product and see How-to Guides.
• View this repository's main README to see the full list of Cloud APIs that we cover.

require
 "google/cloud/firestore"


firestore
 =
 Google
::
Cloud
::
Firestore
.
new
(

  project_id
: 
"my-project"
,

  credentials
: 
"/path/to/keyfile.json"

)


city
 =
 firestore
.
col
(
"cities"
)
.
doc
(
"SF"
)

city
.
set
(
{
 name
: 
"San Francisco"
,

           state
: 
"CA"
,

           country
: 
"USA"
,

           capital
: 
false
,

           population
: 
860000
 }
)


firestore
.
transaction
 do
 |
tx
|
  
new_population
 =
 tx
.
get
(
city
)
.
data
[
:population
]
 + 
1

  tx
.
update
(
city
,
 {
 population
: 
new_population
 }
)

end

To enable logging for this library, set the logger for the underlying gRPC library. The logger that you set may be a Ruby stdlib Logger as shown below, or a Google::Cloud::Logging::Logger that will write logs to Stackdriver Logging . See grpc/logconfig.rb and the gRPC spec_helper.rb for additional information.

Configuring a Ruby stdlib logger:

require
 "logger"


module
 MyLogger

  LOGGER
 =
 Logger
.
new
 $stderr
,
 level
: 
Logger
::
WARN

  def
 logger

    LOGGER

  end

end


# Define a gRPC module-level logger method before grpc/logconfig.rb loads.

module
 GRPC

  extend
 MyLogger

end

This library is supported on Ruby 2.6+.

Google provides official support for Ruby versions that are actively supported by Ruby Core?that is, Ruby versions that are either in normal maintenance or in security maintenance, and not end of life. Older versions of Ruby may still work, but are unsupported and not recommended. See https://www.ruby-lang.org/en/downloads/branches/ for details about the Ruby support schedule.