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Support installed application credentials #8

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17 changes: 17 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ A Ruby interface to the BigQuery API.
```

## Getting Started
### Use private_key

```ruby
require "bigquery-client"
Expand All @@ -27,6 +28,22 @@ client = BigQuery::Client.new(
client.sql "SELECT * FROM publicdata:samples.wikipedia LIMIT 10"
```

### Use client_secrets

```ruby
require "bigquery-client"

client = BigQuery::Client.new(
project: "your-project-42",
dataset: "your_dataset",
client_secrets_path: "/path/to/client_secrets.json",
credential_store_file: "/path/to/credential_store_file.json",
auth_method: "client_secrets"
)

client.sql "SELECT * FROM publicdata:samples.wikipedia LIMIT 10"
```

## Available API methods

https://cloud.google.com/bigquery/docs/reference/v2/
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15 changes: 15 additions & 0 deletions lib/bigquery-client/client.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,21 @@ def authorize_client
auth = Google::APIClient::ComputeServiceAccount.new
auth.fetch_access_token!
@client.authorization = auth
when 'client_secrets'
file_storage = Google::APIClient::Storage.new(Google::APIClient::FileStore.new(@credential_store_file))
auth = file_storage.authorize

if file_storage.authorization.nil?
client_secrets = Google::APIClient::ClientSecrets.load(@client_secrets_path)
flow = Google::APIClient::InstalledAppFlow.new(
client_id: client_secrets.client_id,
client_secret: client_secrets.client_secret,
scope: 'https://www.googleapis.com/auth/bigquery'
)

auth = flow.authorize(file_storage)
end
@client.authorization = auth
end
end
end
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