renderModule
function
Renders a Module to string.
renderModule<T>(module: Type<T>, options: {
    document?: string;
    url?: string;
    extraProviders?: StaticProvider[];
}): Promise<string>
 Parameters
| module | Type:  | 
| options | Type:  | 
Returns
Promise<string>
Description
document is the full document HTML of the page to render, as a string. url is the URL for the current render request. extraProviders are the platform level providers for the current render request.
Do not use this in a production server environment. Use pre-compiled NgModuleFactory with renderModuleFactory instead.
    © 2010–2019 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
    https://v6.angular.io/api/platform-server/renderModule