Ready to get started?

Learn more about the CData ODBC Driver for Amazon Athena or download a free trial:

Download Now

Ruby でAthena Data データ連携アプリを構築

Ruby でODBC 経由でAthena data に接続して、モダンなクラウド連携アプリを開発。

CData ODBC Driver for Athena を使うと、簡単にRuby アプリケーションにリアルタイムAthena data データを連携・統合できます。 Tこの記事では、Athena data データにリアルタイムに連携するRuby アプリケーションを構築して、クエリを実行し、結果を表示してみます。

Athena Data のODBC 接続を設定

通常はCData ODBC Driver のインストール後にODBC DSN 接続ウィザードが立ち上がり、設定を行うことができます。 もしODBC DSN 接続が未済の場合には、Microsoft ODBC データソースアドミニストレータでODBC DSN を作成および設定することができます。

Authenticating to Amazon Athena

To authorize Amazon Athena requests, provide the credentials for an administrator account or for an IAM user with custom permissions: Set AccessKey to the access key Id. Set SecretKey to the secret access key.

Note: Though you can connect as the AWS account administrator, it is recommended to use IAM user credentials to access AWS services.

Obtaining the Access Key

To obtain the credentials for an IAM user, follow the steps below:

  1. Sign into the IAM console.
  2. In the navigation pane, select Users.
  3. To create or manage the access keys for a user, select the user and then select the Security Credentials tab.

To obtain the credentials for your AWS root account, follow the steps below:

  1. Sign into the AWS Management console with the credentials for your root account.
  2. Select your account name or number and select My Security Credentials in the menu that is displayed.
  3. Click Continue to Security Credentials and expand the Access Keys section to manage or create root account access keys.

Authenticating from an EC2 Instance

If you are using the CData Data Provider for Amazon Athena 2018 from an EC2 Instance and have an IAM Role assigned to the instance, you can use the IAM Role to authenticate. To do so, set UseEC2Roles to true and leave AccessKey and SecretKey empty. The CData Data Provider for Amazon Athena 2018 will automatically obtain your IAM Role credentials and authenticate with them.

Authenticating as an AWS Role

In many situations it may be preferable to use an IAM role for authentication instead of the direct security credentials of an AWS root user. An AWS role may be used instead by specifying the RoleARN. This will cause the CData Data Provider for Amazon Athena 2018 to attempt to retrieve credentials for the specified role. If you are connecting to AWS (instead of already being connected such as on an EC2 instance), you must additionally specify the AccessKey and SecretKey of an IAM user to assume the role for. Roles may not be used when specifying the AccessKey and SecretKey of an AWS root user.

Authenticating with MFA

For users and roles that require Multi-factor Authentication, specify the MFASerialNumber and MFAToken connection properties. This will cause the CData Data Provider for Amazon Athena 2018 to submit the MFA credentials in a request to retrieve temporary authentication credentials. Note that the duration of the temporary credentials may be controlled via the TemporaryTokenDuration (default 3600 seconds).

Connecting to Amazon Athena

In addition to the AccessKey and SecretKey properties, specify Database, S3StagingDirectory and Region. Set Region to the region where your Amazon Athena data is hosted. Set S3StagingDirectory to a folder in S3 where you would like to store the results of queries.

If Database is not set in the connection, the data provider connects to the default database set in Amazon Athena.

Ruby および必要なGem のインストール

If you do not have Ruby installed, refer to the Ruby インストールページ. Ruby をインストールしたら、次にruby-dbi、dbd-odbc、ruby-odbc gems をインストールします:

gem install dbi gem install dbd-odbc gem install ruby-odbc

Athena Data に連携するRuby アプリケーションの作成

Ruby ファイル (例: AmazonAthenaSelect.rb) を作成し、テキストエディタで開きます。ファイルに次のコードをコピーします:

#connect to the DSN require 'DBI' cnxn = DBI.connect('DBI:ODBC:CData AmazonAthena Source','','') #execute a SELECT query and store the result set resultSet = cnxn.execute("SELECT Name, TotalDue FROM Customers") #display the names of the columns resultSet.column_names.each do |name| print name, "\t" end puts #display the results while row = resultSet.fetch do (0..resultSet.column_names.size - 1).each do |n| print row[n], "\t" end puts end resultSet.finish #close the connection cnxn.disconnect if cnxn

これで、Ruby で Athena data データが接続できるようになります。簡単にコマンドラインからファイルを叩いて接続を確認してみましょう。:

ruby AmazonAthenaSelect.rb Writing SQL-92 queries to Athena へのSQL-92 企画のSQL によって、Ruby に簡単にAthena data を統合できます。是非、トライアルで試してみてください。

 
 
ダウンロード