Starts the embedded web server.
async oauth.startWebServer(): Promise<void>
Starts the embedded web server. This method can be used to manually start the embedded web server. Under normal circumstances this is not needed as the component will automatically start and stop the web server when GetAuthorization is called. However, you may decide to start the web server manually before calling GetAuthorization. When called this method will also populate ReturnURL with the address of the embedded server.