# Refs

The references of the documents to change the index date, expire date or database values for.

You should percent-encode document references. This ensures that any reserved characters that are part of a reference are not interpreted as query syntax. If you are sending HTTP requests using the content-type `application/x-www-form-urlencoded` you should percent-encode all parameter values, meaning that document references are percent-encoded twice. For more information, see Percent Encoding in Queries.

Reference encoding example.

If you have the following two references:

- http://www.example.com/?script.pl&query=test

- http://www.example.com/?script.pl&query=cat+dog

Percent-encode each reference:

    http%3A%2F%2Fwww%2Eexample%2Ecom%2F%3Fscript%2Epl%26query%3Dtest

    http%3A%2F%2Fwww%2Eexample%2Ecom%2F%3Fscript%2Epl%26query%3Dcat%2Bdog

Separate the two references with a plus symbol:

    http%3A%2F%2Fwww%2Eexample%2Ecom%2F%3Fscript%2Epl%26query%3Dtest+http%3A%2F%2Fwww%2Eexample%2Ecom%2F%3Fscript%2Epl%26query%3Dcat%2Bdog

If you send your HTTP request using the content-type `application/x-www-form-urlencoded`, all parameter values should be percent-encoded. When Distributed Index Handler receives the request, the references should have been percent-encoded twice and the "+" separator should have been percent-encoded only once:

    http%253A%252F%252Fwww%252Eexample%252Ecom%252F%253Fscript%252Epl%2526query%253Dtest%2Bhttp%253A%252F%252Fwww%252Eexample%252Ecom%252F%253Fscript%252Epl%2526query%253Dcat%252Bdog

By default, IDOL server searches for the references in all reference fields. If you have multiple reference fields and want to search for the specified `Refs` in only one, set the Field parameter to the reference field to use.

Actions: | DRECHANGEMETA
Type: | String
Default: |
Example: | `Refs=http%253A%252F%252Fwww%252Ecompany%252Ecom%252Fmarket%252Easp%253F%2Bhttp%253A%252F%252Fwww%252Esomewhere%252Ejp`
See Also: | Field

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