Advanced Topics

Type Conversion between Java and TypeScript: Understanding conversion of data types from Java to TypeScript and vice versa.
TypeScript Endpoints Generator: Understanding the Hilla TypeScript endpoints generator, type nullability, and how the generator generates TypeScript from the OpenAPI specification.
TypeScript Client: Understanding the Hilla TypeScript client library, the default TypeScript client, and generated client modules.
Client middleware: In Hilla, middleware intercepts the request and response for every call, so it is able to process requests and their responses.
Endpoint Method Validation: In Hilla, the parameters of an endpoint method are automatically validated and, if validation fails, a corresponding response is sent back to the browser.
Endpoint URLs: How endpoint URLs are composed in Hilla, and how to modify them.
TypeScript Definitions of Components: Understanding how to use Vaadin components' TypeScript definitions with web components in TypeScript views.
The Connection Indicator: The connection indicator informs the user of the server connection status, and indicates loading progress if network requests take some time. Its duration and style are configurable.