basePath property Null safety
A prefix for all routes on this instance.
If this value is non-null, each route is prefixed by this value.
For example, if a route is "/users" and the value of this property is "/api", a request's path must be "/api/users" to match the route.
Trailing and leading slashes have no impact on this value.
Implementation
String get basePath => "/${_basePathSegments.join("/")}";