Valores limitados que satisfazem um parâmetro de URL React-Router
{/* It's possible to use regular expressions to control what param values should be matched.
* "/order/asc" - matched
* "/order/desc" - matched
* "/order/foo" - not matched*/}
<Route
path="/order/:direction(asc|desc)"
component={ComponentWithRegex}
/>
Gifted Gorilla