Uses of Interface
com.vaadin.flow.server.RequestHandler

Packages that use RequestHandler

Package	Description
com.vaadin.base.devserver
com.vaadin.flow.i18n
com.vaadin.flow.internal
com.vaadin.flow.server
com.vaadin.flow.server.communication

Uses of RequestHandler in com.vaadin.base.devserver

Classes in com.vaadin.base.devserver that implement RequestHandler

Modifier and Type	Class	Description
class	AbstractDevServerRunner	Deals with most details of starting a frontend development server or connecting to an existing one.
final class	DevBundleBuildingHandler	A fake DevModeHandler whose only purpose is to eagerly show a "build in progress" HTML page to the user, during the creation of the development bundle.
final class	ViteHandler	Handles communication with a Vite server.

Uses of RequestHandler in com.vaadin.flow.i18n

Classes in com.vaadin.flow.i18n that implement RequestHandler

Modifier and Type	Class	Description
class	TranslationFileRequestHandler	Handles translation file requests.

Uses of RequestHandler in com.vaadin.flow.internal

Subinterfaces of RequestHandler in com.vaadin.flow.internal

Modifier and Type	Interface	Description
interface	DevModeHandler	Request handler for development mode, providing proxy capabilities to the development server and access to compilation output.

Uses of RequestHandler in com.vaadin.flow.server

Subinterfaces of RequestHandler in com.vaadin.flow.server

Modifier and Type	Interface	Description
interface	SessionExpiredHandler	A specialized RequestHandler which is capable of sending session expiration messages to the user.

Classes in com.vaadin.flow.server that implement RequestHandler

Modifier and Type	Class	Description
class	BootstrapHandler	Request handler which handles bootstrapping of the application, i.e.
class	SynchronizedRequestHandler	RequestHandler which takes care of locking and unlocking of the VaadinSession automatically.
class	UnsupportedBrowserHandler	A RequestHandler that presents an informative page that the browser in use will not work.

Methods in com.vaadin.flow.server that return types with arguments of type RequestHandler

Modifier and Type	Method	Description
protected List<RequestHandler>	VaadinService.createRequestHandlers()	Called during initialization to add the request handlers for the service.
protected List<RequestHandler>	VaadinServletService.createRequestHandlers()
Stream<RequestHandler>	ServiceInitEvent.getAddedRequestHandlers()	Gets a stream of all custom request handlers that have been added for the service.
Iterable<RequestHandler>	VaadinService.getRequestHandlers()	Returns the request handlers that are registered with this service.
Collection<RequestHandler>	VaadinSession.getRequestHandlers()	Gets the request handlers that are registered to the session.

Methods in com.vaadin.flow.server with parameters of type RequestHandler

Modifier and Type	Method	Description
void	ServiceInitEvent.addRequestHandler(RequestHandler requestHandler)	Adds a new request handler that will be used by this service.
void	VaadinSession.addRequestHandler(RequestHandler handler)	Adds a request handler to this session.
void	VaadinSession.removeRequestHandler(RequestHandler handler)	Removes a request handler from the session.

Uses of RequestHandler in com.vaadin.flow.server.communication

Classes in com.vaadin.flow.server.communication that implement RequestHandler

Modifier and Type	Class	Description
class	FaviconHandler	Handles the favicon request explicitly and return 404 for it.
class	HeartbeatHandler	Handles heartbeat requests.
class	IndexHtmlRequestHandler	This class is responsible for serving the index.html according to the template provided in the frontend folder.
class	JavaScriptBootstrapHandler	Processes a 'start' request type from the client to initialize server session and UI.
class	PushRequestHandler	Handles requests to open a push (bidirectional) communication channel between the client and the server.
class	PwaHandler	Handles serving of PWA resources.
class	SessionRequestHandler	Handles a request by passing it to each registered RequestHandler in the session in turn until one produces a response.
class	StreamRequestHandler	Handles StreamResource and StreamReceiver instances registered in VaadinSession.
class	UidlRequestHandler	Processes a UIDL request from the client.
class	WebComponentBootstrapHandler	Bootstrap handler for WebComponent requests.
class	WebComponentProvider	Request handler that supplies the script/html of the web component matching the given tag.