Searching and Filtering

Most provider cmdlets expose an optional -filter parameter; the OData PowerShell provider allows you to use this parameter to specify either a standard OData filter expression or query string.

For example, if you want to filter the set of entities in an OData feed, you can specify an OData filter expression in the -filter parameter value of the get-childitem cmdlet:

get-childitem nuget:/packages -filter "Authors eq 'Code Owls LLC'"

If you need to sort the feed by a custom property, you can specify a full OData query string in the -filter parameter of the get-childitem cmdlet:

get-childitem nuget:/packages -filter "`$orderby=Version"

You can include any valid OData query string in the filter parameter. For instance, you can filter, sort, and limit the feed results in a single filter:

get-childitem nuget:/packages -filter "`$orderby=Version&`$filter=Authors eq 'Code Owls LLC'&`$top=3"

Alternatively, the OData PowerShell provider supports a set of optional custom parameters when operating against a path that represents an OData collection. These parameters are:
  • filter: the OData filter expression
  • top: the number of results to return
  • skip: the number of results to skip
  • orderBy: the property name by which to sort the collection entities; by default the results are sorted ascending
  • descending: a switch to indicate that results should be sorted decending; this switch has no effect when -sortBy is not also specified
  • select: a list of property names to include in the results
  • expand: a list of property names to include inline in the results

This example performs the identical query as the previous example, using the optional parameters:

get-childitem nuget:/packages -orderBy Version -filter "Authors eq 'Code Owls LLC'" -top 3

When using the dynamic parameters and filter expression, the OData provider will URI-encode the necessary characters for you. However, when you specify a query string in the -filter parameter, you must URI-encode any characters necessary to include the query string in an HTTP request URL.

Last edited Jan 27, 2012 at 8:00 PM by beefarino, version 1

Comments

No comments yet.