Until recently, I was always decoded the JWT to get the subdomain of a subscribed tenant like this:
const jwt = retrieveJwt(req)
const subdomain = decodeJwt(jwt).ext_attr.zdn
I now noticed that you can also use the original request object and the getSubdomain function of the authInfo object. It’s provided by @sap/xssec and is only available when using XSUAA, means not with mocked authentication. This way you can get the subdomain in a single line:
const subdomain = req.http.req.authInfo.getSubdomain()
And there are some more helpful functions, that are documented here:
