Hi Ali Tafaghod,
Thank you for contacting Syncfusion support.
Query: Can I use ESRI Rest Web Services in url of DataManager?
Yes, you can use ESRI Rest web services in url of DataManager. We have used a demo service from the site in our DataManager and prepared a sample with custom DataAdaptor in Datamanager.
Refer to the following link for the sample:
Regards,
Prince