如何使用Ruby连接到Firestore数据库

我试图通过Ruby脚本(最终是从Rails应用程序)在Firestore数据库中读写数据.

I'm trying to write and read to and from my Firestore database from a Ruby script, eventually from a Rails application.

这似乎是一项微不足道的任务，但是当我在IRB中运行测试脚本时，它不会让我写入或读取数据.

It seems like a trivial task but when I run a test script inside IRB it won't let me write or read data.

我尝试过:

• 成功安装了 google-cloud-firestore gem
• 从Firestore控制台中下载JSON密钥文件.
• 将安全规则设置为公共(读和写)

require 'google/cloud/firestore' # => true

# credentials
cred = Google::Cloud::Firestore::Credentials.new('<path/to/my/keyfile/key-projectname-etc.json>') 
# => #<Google::Cloud::Firestore::Credentials:...>

# initialize firestore connection
db = Google::Cloud::Firestore.new(
  project_id: '<MY-PROJECT-ID>',
  credentials: cred
) # => #<Google::Cloud::Firestore::Client:...>

# write a document inside the users collection
db.doc("users/helloFromRuby").set({ name: "yay it worked!"})

这是我收到的错误消息:

This is the error message I get:

Google::Cloud::UnavailableError (14:failed to connect to all addresses)