Import Maps: The Next Evolution Step for Micro Frontends?

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1. @ManfredSteyer Import Maps: The Next Evolution Step for Micro Frontends? ManfredSteyer
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4. @ManfredSteyer Booking App Check-in App Boarding App Luggage App
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6. @ManfredSteyer const Component = await import('other-app/xyz')
7. @ManfredSteyer const Component = await import('other-app/xyz')
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11. @ManfredSteyer #1 Module Federation 101 #2 Import Maps #3 Module Federation on Import Maps
12. @ManfredSteyer Manfred Steyer
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14. @ManfredSteyer Shell (Host) Microfrontend (Remote) // Maps Urls in // webpack config remotes: { mfe1: "http://..." } // Expose files in // webpack config exposes: { './Cmp': './my.cmp.ts' } import('mfe1/Cmp')
15. @ManfredSteyer Shell (Host) Microfrontend (Remote) RemoteEntry.js <script src="…"></script>
16. @ManfredSteyer Shell (Host) Microfrontend (Remote) shared: [ "@angular/core", "…" ] shared: [ "@angular/core", "…" ]
17. @ManfredSteyer Selecting the highest compatible version ^10.0 ^10.1
18. @ManfredSteyer Conflict: No highest compatible version 11.0 10.1
19. @ManfredSteyer shared: { "my-lib": { singleton: true } } 11.0 10.1
20. @ManfredSteyer shared: { "my-lib": { singleton: true, strictVersion: true // Error instead of warning! } } 11.0 10.1
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22. @ManfredSteyer <script type="module"> import { format, parseISO } from 'date-fns'; const date = parseISO('2022-08-15'); const weekday = format(date, 'EEE'); console.log(`It's a ${weekday}.`); </script>
23. @ManfredSteyer <script type="module"> import { format, parseISO } from 'date-fns'; const date = parseISO('2022-08-15'); const weekday = format(date, 'EEE'); console.log(`It's a ${weekday}.`); </script>
24. @ManfredSteyer <script type="importmap"> { "imports": { "date-fns": "./libs/date-fns.js" } } </script>
25. @ManfredSteyer <script type="importmap"> { "imports": { "date-fns": "./libs/date-fns.js", "is-long-weekend": "http://this-app/module.mjs", "is-bridging-day": "http://that-app/module.mjs" } } </script>
26. @ManfredSteyer <script type="importmap"> { "imports": { […] }, "scopes": { "http://this-app/module.mjs": { "date-fns": "./libs/this-date-fns.js" }, "http://that-app/module.mjs": { "date-fns": "./libs/that-date-fns.js" } } } </script>
27. @ManfredSteyer const im = document.createElement('script'); im.type = 'importmap'; im.textContent = JSON.stringify(importMap); document.currentScript.after(im);
28. @ManfredSteyer [https://caniuse.com/import-maps]
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32. @ManfredSteyer Meta Data • Providing at compile time • Loading at runtime Bundling • Remotes • Shared packages • Angular compiler Import Map • Generate using meta data • Scopes for version mismatches
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34. @ManfredSteyer @gioboa/vite-module-federation @softarc/native-federation @angular-architects/native-federation yours Example: VanillaJS and React with esbuild Example: Vite with Svelte and Angular (AnalogJS)
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40. @ManfredSteyer Once, Angular CLI supports esbuild: Move to Native Federation
41. @ManfredSteyer If you already use esbuild or vite: Native Federation
42. @ManfredSteyer In general: Native Federation is your insurance for the mid- and long-term
43. @ManfredSteyer Free eBook (5th Edition) ANGULARarchitects.io/book Module Federation & Nx
44. @ManfredSteyer Module Federation: Mental Model rocks! Import Maps: Provide low level building blocks Native Federation: Insurance Works with esbuild, vite, etc.
45. @ManfredSteyer
46. @ManfredSteyer d Slides & Examples Remote Company Workshops and Consulting http://angulararchitects.io