Sometimes after your application is up and running, there might be need to change your sync server or the path of your rhosync server.
Changing the syncserver option requires updating the SyncEngine at runtime, Following ruby call is available for this :::
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SyncEngine.set_syncserver(url)
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To fetch present syncserver use ::: Rho::RhoConfig.syncserver
There are many configurations for your Rhodes application, at rhomobile docs