Mechanism to get a hold of the mountParcel() function

[webJose]

Hello, everyone.

As you may know, this package has a Svelte v5 component named SspaParcel that can be used to mount single-spa parcels. It currently needs to be given the mountParcel() or mountRootParcel() function in order to work.

It would be nice to develop an automatic mechanism for the component to get a hold of this function.

My Proposal

Create a Svelte store for mountParcel(). Then, upon mounting a micro-frontend or parcel, the incoming mountParcel() function in the single-spa-given properties is captured and stored there. At this point, SspaParcel can obtain it from the store. If the store is empty, then an error is thrown.

To cover for the cases where parcels are being mounted in the root config project (as I don't believe in UI-less root config projects), the store can be pre-filled in the root config using mountRootParcel().

I'm open to suggestions, corrections, enhancements or alternatives.