--- title: Dashboard description: Docker extension API keywords: Docker, extensions, sdk, API aliases: - /desktop/extensions-sdk/dev/api/dashboard/ --- ## User notifications Toasts provide a brief notification to the user. They appear temporarily and shouldn't interrupt the user experience. They also don't require user input to disappear. ### success ▸ **success**(`msg`): `void` Use to display a toast message of type success. ```typescript ddClient.desktopUI.toast.success("message"); ``` ### warning ▸ **warning**(`msg`): `void` Use to display a toast message of type warning. ```typescript ddClient.desktopUI.toast.warning("message"); ``` ### error ▸ **error**(`msg`): `void` Use to display a toast message of type error. ```typescript ddClient.desktopUI.toast.error("message"); ``` For more details about method parameters and the return types available, see [Toast API reference](/reference/api/extensions-sdk/Toast.md). > Deprecated user notifications > > These methods are deprecated and will be removed in a future version. Use the methods specified above. ```typescript window.ddClient.toastSuccess("message"); window.ddClient.toastWarning("message"); window.ddClient.toastError("message"); ``` ## Open a file selection dialog This function opens a file selector dialog that asks the user to select a file or folder. ▸ **showOpenDialog**(`dialogProperties`): `Promise`<[`OpenDialogResult`](/reference/api/extensions-sdk/OpenDialogResult.md)\>: The `dialogProperties` parameter is a list of flags passed to Electron to customize the dialog's behaviour. For example, you can pass `multiSelections` to allow a user to select multiple files. See [Electron's documentation](https://www.electronjs.org/docs/latest/api/dialog) for a full list. ```typescript const result = await ddClient.desktopUI.dialog.showOpenDialog({ properties: ["openDirectory"], }); if (!result.canceled) { console.log(result.paths); } ``` ## Open a URL This function opens an external URL with the system default browser. ▸ **openExternal**(`url`): `void` ```typescript ddClient.host.openExternal("https://docker.com"); ``` > The URL must have the protocol `http` or `https`. For more details about method parameters and the return types available, see [Desktop host API reference](/reference/api/extensions-sdk/Host.md). > Deprecated user notifications > > This method is deprecated and will be removed in a future version. Use the methods specified above. ```typescript window.ddClient.openExternal("https://docker.com"); ``` ## Navigation to Dashboard routes From your extension, you can also [navigate](dashboard-routes-navigation.md) to other parts of the Docker Desktop Dashboard.