I created an app in spfx on sharepoint online and connect to a app service use AadClient. It's possible to do the same in SharePoint 2019 On Premise and On Premise Api?.


  • As long as the features you need from SPFx are supported in SPFx 1.41, yes. – Trevor Seward Mar 22 at 19:00
  • Thanks for your reply. How can I send the authenticated SPFX user token to the web API? – Andres Correal Mar 22 at 19:23
  • Is there a way to determine what version of SPFx is available on premise in the future? Do CU's/patches update this? How long will on-prem be stuck on 1.41? – Slipfish Apr 1 at 21:14

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