> Markdown version of [Route Parameters](https://vaadin.com/docs/v24/building-apps/views/pass-data/route-parameters). Section index: [llms.txt](https://vaadin.com/docs/v24/building-apps/llms.txt)

# Route Parameters

Route parameters are dynamic segments in a URL that allow extra information to be passed to a view. They are appended to the route path and can be used to personalize responses or modify application behavior.

For example, if an application has a `greet` route that accepts a string parameter, users can call it with URLs like:

- `/greet/John`

- `/greet/Jane`

- `/greet/World`

Here, `"John"`, `"Jane"`, and `"World"` are parameter values that the `greet` route can use to generate a response.

## <a id="route-parameters-vs-static-routes"></a>Route Parameters vs Static Routes

Static routes always take precedence over dynamic ones. For instance, consider an application with both a `customer` route (which accepts a string parameter), and a `customer/list` route:

- `/customer/cu1234` → Calls the `customer` route with `"cu1234"` as the parameter value.

- `/customer/details` → Calls the `customer` route with `"details"` as the parameter value.

- `/customer/list` → Calls the dedicated `customer/list` route.

- `/customer` → Returns a `404 Not Found` error, unless the parameter is explicitly declared optional.

## <a id="using-route-parameters-in-your-application"></a>Using Route Parameters in Your Application

You can use route parameters in both Flow and Hilla views. The following guides show you how to implement them:

- [Route Parameters in Flow](https://vaadin.com/docs/v24/building-apps/views/pass-data/route-parameters/flow.md)

- [Route Parameters in Hilla](https://vaadin.com/docs/v24/building-apps/views/pass-data/route-parameters/hilla.md)