The alias of the extension, ensure it is unique
OptionaljsThe file location of the javascript file to load
OptionalkindThe kind of the extension, used to group extensions together
The friendly name of the extension
The type of extension such as dashboard etc...
OptionalweightExtensions such as dashboards are ordered by weight with higher numbers being first in the list
Manifest for a
userEntryPoint, which is loaded once the user has been authorized and the current user data is available. UnlikeappEntryPointandbackofficeEntryPoint, extensions of this type can rely onUMB_CURRENT_USER_CONTEXTbeing populated inonInit. For changes to the current user within the session (permissions, languages, etc.), observe UMB_CURRENT_USER_CONTEXT instead — this extension type only marks the session boundaries.onUnloadis called when the user session ends (sign-out or timeout) or the extension is unregistered. If the user authorizes again,onInitruns again — note the current user may then be a different user than in the previous session.This type of extension gives full control and will simply load the specified JS file. You could have custom logic to decide which extensions to load/register by using extensionRegistry.
Example