I'm fairly new with Javascript/Typescript and was developing a Single-Spa with Single SPA RouterSearching for info about registering applications I found different ways of doing that, one way is using the LayoutEngine that "automatically" register my applications this way:
const routes = constructRoutes(microfrontendLayout);
const applications = constructApplications({routes, loadApp({name}) { return System.import(name);
}});
const layoutEngine = constructLayoutEngine({ routes, applications });
applications.forEach(registerApplication);
layoutEngine.activate();From what I understood is, in microfrontend-layout.html we have to put something like an HTML tag in this way
<application name="@prueba-organizacion/micro-prueba-app1"></application>with that and having an importmap in index.ejs the app was loading fine.
But then I found another way, the manually way:
A)
import { registerApplication, start } from "single-spa";
registerApplication({ name: '@prueba-organizacion/micro-prueba-app1', app: () => System.import('@prueba-organizacion/micro-prueba-app1'), activeWhen: (location) => location.pathname.startsWith('/app1')
});
start();But that says: Promise\<System.Module\> is not assignable to type Application\<{}\>
Then I found ANOTHER WAY of doing the same as above:
B)
System.import('single-spa').then(({ registerApplication, start }) => { registerApplication({ name: '@prueba-organizacion/micro-prueba-app1', app: () => System.import('@prueba-organizacion/micro-prueba-app1'), activeWhen: (location) => location.pathname.startsWith('/app1'), }); start();
});The thing here is, what's the difference between point A) and point B)? I mean, they're importing the modules and registerApplication, start functions but one of them is throwing me an error.
I'm using "single-spa": "^5.9.3" from package.json
Thanks!
I've tried both ways, one of them is not working, the other one is working (B) as expected
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