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Easy-to-use OData client (consumer) enables developers to build .NET applications that easily communicate with OData services.

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Automate OData Integration Tasks from PowerShell


Are you in search of a quick and easy way to access OData services from PowerShell? This article demonstrates how to utilize the OData Cmdlets for tasks like connecting to OData services, automating operations, downloading data, and more.

The CData Cmdlets for OData are standard PowerShell cmdlets that make it easy to accomplish data cleansing, normalization, backup, and other integration tasks by enabling real-time and bidirectional access to OData.

PowerShell Cmdlets or ADO.NET Provider?

The Cmdlets are not only a PowerShell interface to OData, but also an SQL interface; this tutorial shows how to use both to create, retrieve, update, and delete OData services. We also show examples of the ADO.NET equivalent, which is possible with the CData ADO.NET Provider for OData. To access OData services from other .NET applications, like LINQPad, use the CData ADO.NET Provider for OData.

Once you have acquired the necessary connection properties, accessing OData services in PowerShell can be enabled in three steps.

The User and Password properties, under the Authentication section, must be set to valid OData user credentials. In addition, you will need to specify a URL to a valid OData server organization root or OData services file.

PowerShell

  1. Install the module:

    Install-Module ODataCmdlets

  2. Connect:

    $odata = Connect-OData -URL "$URL" -UseIdUrl "$UseIdUrl" -OData Version "$OData Version" -Data Format "$Data Format"

  3. Search for and retrieve data:

    $shipcity = "New York" $orders = Select-OData -Connection $odata -Table "Orders" -Where "ShipCity = `'$ShipCity`'" $orders

    You can also use the Invoke-OData cmdlet to execute SQL commands:

    $orders = Invoke-OData -Connection $odata -Query 'SELECT * FROM Orders WHERE ShipCity = @ShipCity' -Params @{'@ShipCity'='New York'}

ADO.NET

  1. Load the provider's assembly:

    [Reflection.Assembly]::LoadFile("C:\Program Files\CData\CData ADO.NET Provider for OData\lib\System.Data.CData.OData.dll")

  2. Connect to OData:

    $conn= New-Object System.Data.CData.OData.ODataConnection("URL=http://services.odata.org/V4/Northwind/Northwind.svc;UseIdUrl=True;OData Version=4.0;Data Format=ATOM;") $conn.Open()

  3. Instantiate the ODataDataAdapter, execute an SQL query, and output the results:

    $sql="SELECT OrderName, Freight from Orders" $da= New-Object System.Data.CData.OData.ODataDataAdapter($sql, $conn) $dt= New-Object System.Data.DataTable $da.Fill($dt) $dt.Rows | foreach { Write-Host $_.ordername $_.freight }

Update OData Services

PowerShell

Update-OData -Connection $OData -Columns @('OrderName','Freight') -Values @('MyOrderName', 'MyFreight') -Table Orders -Id "MyId"

ADO.NET

$cmd = New-Object System.Data.CData.OData.ODataCommand("UPDATE Orders SET ShipCity='New York' WHERE Id = @myId", $conn) $cmd.Parameters.Add((New-Object System.Data.CData.OData.ODataParameter("@myId","10456255-0015501366"))) $cmd.ExecuteNonQuery()

Insert OData Services

PowerShell

Add-OData -Connection $OData -Table Orders -Columns @("OrderName", "Freight") -Values @("MyOrderName", "MyFreight")

ADO.NET

$cmd = New-Object System.Data.CData.OData.ODataCommand("INSERT INTO Orders (ShipCity) VALUES (@myShipCity)", $conn) $cmd.Parameters.Add((New-Object System.Data.CData.OData.ODataParameter("@myShipCity","New York"))) $cmd.ExecuteNonQuery()

Delete OData Services

PowerShell

Remove-OData -Connection $OData -Table "Orders" -Id "MyId"

ADO.NET

$cmd = New-Object System.Data.CData.OData.ODataCommand("DELETE FROM Orders WHERE Id=@myId", $conn) $cmd.Parameters.Add((New-Object System.Data.CData.OData.ODataParameter("@myId","001d000000YBRseAAH"))) $cmd.ExecuteNonQuery()