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PowerShell でOpen Exchange Rates Data データをCSV に落としてみた

標準PowerShell cmdlets を使ってOpen Exchange Rates テーブルにアクセス。

CData Cmdlets Module for Open Exchange Rates は、直感的なOpen Exchange Rates データ連携を提供する標準cmdlet です。 本記事では、OpenExchangeRates Cmdlets を使ったサンプルを提供します。

Creating a Connection to Your Open Exchange Rates Data

The Open Exchange Rates API supports basic authentication with an App Id. After you register, your App Id is displayed in your account dashboard. Set this to the AppId connection property.

$conn = Connect-OpenExchangeRates  -AppId "$AppId"

Selecting Data

Follow the steps below to retrieve data from the Projects table and pipe the result into to a CSV file:

Select-OpenExchangeRates -Connection $conn -Table Projects | Select -Property * -ExcludeProperty Connection,Table,Columns | Export-Csv -Path c:\myProjectsData.csv -NoTypeInformation

You will notice that we piped the results from Select-OpenExchangeRates into a Select-Object cmdlet and excluded some properties before piping them into an Export-Csv cmdlet. We do this because the CData Cmdlets append Connection, Table, and Columns information onto each "row" in the result set, and we do not necessarily want that information in our CSV file.

The Connection, Table, and Columns are appended to the results in order to facilitate piping results from one of the CData Cmdlets directly into another one.