Configures an <code><a>Expression</a></code> for the search domain. Used to create new expressions and modify existing ones. If the expression exists, the new configuration replaces the old one. For more information, see <a href="http://docs.aws.amazon.com/cloudsearch/latest/developerguide/configuring-expressions.html" target="_blank">Configuring Expressions</a> in the <i>Amazon CloudSearch Developer Guide</i>.
get/#Action=DefineExpression
Query parameters
DomainNamestring required
A string that represents the name of a domain. Domain names are unique across the domains owned by an account within an AWS region. Domain names start with a letter or number and can contain the following characters: a-z (lowercase), 0-9, and - (hyphen).
Action'DefineExpression' required
Version'2013-01-01' required
Response
Success