Change it to match the following: We can run both the dashboard application and the login application and you can try it out using: This concludes the setup required for a Micro Frontend approach using Static Module Federation. Angular Universal (Server Side Rendering) Since Version 12.4.0 of this plugin, we support the new jsdom -based Angular Universal API for Server Side Rendering (SSR). Beginning with version 14, we use a more steamlined configuration, when using the above mentioned --type switch with one of the following options: remote, host, dynamic-host. Already on GitHub? Well occasionally send you account related emails. To serve our host-app and micro frontends: npm run start. Lets say we have a single Angular application in an Nx Workspace with the following architecture: If you are not already using Nx, and want to take advantage of this, consider migrating to Nx first. Installs a custom builder to enable Module Federation. Usually, with Module Federation in Webpack, you have to specify the packages to share between all the applications in your Micro Frontend solution.However, by taking advantage of Nx's project graph, Nx will automatically find and share the dependencies of your applications. The flow Nx relies on starts with the usual serving of an index.html built upon a template like this: In place of Angular-cli generated selector assigned to AppComponent, body has been populated with our custom remote entry component's selector. You can learn more about this concept here. Despite the code for that page living on a different, remote, server, the host server composed it correctly and was still able to return the correct HTML for that route, thanks to Module Federation! Theres one difference. When using Nx, you rarely have to build all of them because most of the time you work on one remote, other remotes will be retrieved from cache. Micro Frontends in Angular using Nx and Module Federation In this article, I'll share the way to create Micro Frontends in Angular using Nx and webpack 5 module federation. we provide specialized generators, executors, and utilities that make Module Federation easy to set up and work with. When the CI pipeline runs E2E tests, all the remotes should be served statically from cache. First, make sure you have implicit dependencies from host to each remote. The Stack Exchange reputation system: What's working? Module Federation provides a solution to the scaling problem by allowing a Single Page Application (SPA) to be sliced into multiple smaller config has been created module. The average build time (where components haven't changed) gets even faster: buildOf(average remote) + buildOf(host). Opinions my own. But to see where the real magic happens, lets manually navigate the browser to http://localhost:4200/login. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. We can see that, despite being a single application, there are already some clearly defined domains (or slices) within our application. createGlobPatternsForDependencies should work with federated modules. For both applications, the generator did the following: The key differences reside within the configuration of the Module Federation Plugin within each application's module-federation.config.js. A challenge between Sandman and Lucifer Morningstar. The remotes loaded later can reuse these eager dependencies alothough they've been shipped via the host's bundle (e. g. its main.js). Is there an easier way to display an Angular component / module? However, a remote app could change, use a new Tailwind class, rebuild and be redeployed, independently from the host application. You only need to add your lib's name here. decrease team productivity due to long waits for local compilation, and clogged up CI/CD pipelines. Ensure to run the micro-front-end-container last. In the end we can appreciate the result of our efforts, looking at our blue square rendered a single time for any serving methodology: I think Nx support for Angular standalone components federation is still a bit "unripe". Once unpublished, this post will become invisible to the public and only accessible to Gianpiero Errigo. CI runs, and nothing can be split across multiple machines. To try it out, you can checkout the main branch of our example. To do this, first we modify app.routes, removing its entry.routes lazy load, and adding our remote children routes to its array. According to their documentation, "Remote modules are modules that are not part of the current build and loaded from a so . This repo demonstrates the latter. Software Engineer @nrwl . This function is an abstraction on top of webpack's ModuleFederationPlugin with some Nx-specific behavior. 3+ years experience in Angular (preferably latest versions) Experience with complex Angular applications, components, modules, stores, services Understanding of Angular CLI, Node.js, npm,. The repo also makes the shared-components library buildable. to use Codespaces. It does a great job though, raising the coder from writing a lot of boilerplate and, considering I'm not exactly an expert in this field, there's the chance some of the things looking like "flaws" to me, were real solutions for cornercases or common use scenarios I didn't think of. We've already seen that file provides a route to root path '' rendering the root component of our remote. They also provide no way of hooking into that process for us to patch it ourselves. In the previous section, we saw withModuleFederation used in the webpack config. This is great for running e2e tests in CI Its super simple to get Module Federation and SSR up and running with Nx! Once all of them are built, the build process for host will combine the file artifacts from all the remotes. We would love for you to try it out and let us know what you think! Because you will only run your remote in the dev mode, and other remotes will be retrieved from cache, you will be able For this to work well in practice you need to have a build system supporting distributed computation caching and distributed tasks execution (e.g., Nx + Nx Cloud). Talk to us . As you have probably deduced already, instead of one application that needs to build everything, we now have four applications that only need to build the code that they are interested in. `, apps/rem1/src/app/remote-entry/entry.routes.ts, , /* commented-out original default entry.routes import It's worth stressing that there's been no actual errors or breakages noted from our tests. It takes longer to build shop, cart and about separately than building all of them together as part of the same process. I will take for granted the creation of a Module Federated Angular app under Nx. We can serve our dashboard (host) application, along with our login (remote) application, by simply running the command: This will build the browser and server bundles of our login application, then run the login using node.The login application will be run without any file watchers, meaning that if you make a change to the code for the login application, it will not be reflected automatically. module-federation-dev-server; module-federation-ssr-dev-server; generators. Since version 1.2, we provide helper functions making dynamic module federation really easy. It allows the user to specify which remote applications should be served with the host. but for the purposes of this tutorial, we'll keep it simple. There . Nx handles this automatically for you so there shouldn't be an issue unless it was modified manually. Although Nx hides most of the complexity around Module Federation, it still comes with some downsides: With Module Federation, a large application is split into: In the next section, we will see an example with a host app (host) and three remotes (shop, cart, about). Setting up Storybook Composition with Nx; Angular: Set up Compodoc for Storybook on Nx; Angular: Configuring styles and preprocessor options . As you can see, Nx makes it super straightforward to set up Module Federation for new and existing applications!! If the remotes are available in the The module federation config is a partial webpack configuration. To skip some secondary entry points, you can assign a configuration option instead of true: The shareAll helper shares all your dependencies defined in your package.json. Having a suite per remote allows us to distribute e2e tests across machines to make them faster and to only run the suites that could be affected by a PR. Talk to us . How to work with and setup Module Federation with Nx. Please note that SSR only makes sense in specific scenarios, e. g. for customer-facing apps that need SEO. Have a question about this project? path: '', As you can see in the project graph above, there are four e2e test projects in the repo: one for each remote and one for the host. Nx Cloud takes care of distributing the tasks and moving file artifacts across machines. Note: Both commands serve the whole system. That's fine when module is lazy loaded by shell app, but gives a problem when served as independent microfrontend. but not useful for local development. This exhaustive list shows that using this option for @angular/common is not the best idea because normally, you don't need most of them. Publishing Storybook: One main Storybook instance for all projects; Publishing Storybook: One Storybook instance per scope; In module federation with webpack 5, it is possible to share dependencies between the Microfrontends. This affects how we work with Module Federation a bit. With Nx, the developer experience (DX) when working with Module Federation matches more closely to development on a SPA. @nrwl/angular:module-federation-dev-server. Suggestions cannot be applied while the pull request is closed. Distributed task execution, which simplifies your CI/CD setup, and speeds up your builds. If nothing happens, download GitHub Desktop and try again. What it actually creates is:Two applications with Angular Universal (SSR)Webpack Configuration for Browser and Server with Module Federation. If this-is-angular is not suspended, they can still re-publish their posts from their dashboard. This means, this library will be only loaded once. Actionable insights, which improve caching and task distribution. However all the example i have found with Angular hook into the router outlet. Now, serve host to view it in your browser. To showcase this, lets create a new Host application that will use our previous Login application as well as a new Todo Remote application. Unflagging this-is-angular will restore default visibility to their posts. We need an Angular Service that we will use to hold state: This will create a file user.service.ts under the shared/data-access-user library. This works best, if the host always has the highest compatible versions of the shared dependencies. This is default generated entry.route.ts. This means that ourapp no longer needs to build them! The maintainer of the plugin commented on this same issue in a discussion on the webpack repo here: module-federation/module-federation-examples#714 (reply in thread). It only contains stuff to control module federation. If the plugin detects that you are using Nx (it basically looks for a nx.json), it uses the builders provided by Nx. We can do this easily with: You'll be prompted for a preset. The issue is around exposed components using any form of global stylesheet. We want to change this so that the Dashboard application can make a network request at runtime to find out the deployed locations of the Remote applications. In the article Using Module Federation with (Nx) Monorepos and Angular by Manfred Steyer, from the module . Because Nx remotes generator for classic ng-modular setup doesn't need to declare the entry component inside index.html. init; application; library; component; redux; storybook-configuration; component-story; stories; component-cypress-spec; . That is, changes to host will update its bundle, but changes to remotes will not update. Normally all the four libraries would be included into the same application and bundled as part of a single WebPack I've tried many combinations and googled lots of things but to no avail. By using Module Federation you essentially split your application build process vertically. Now let's serve the application and view it in a browser to check that the form renders correctly. They can still re-publish the post if they are not suspended. This is quite a common situation: many times our microfrontend will have its own internal routing, with child paths and obviously a router-outlet under which rendering them. If you set requireVersion to 'auto', the helper takes the version defined in your package.json. Read our welcome letter which is an open invitation for you to join. Why the issue doesn't occur with old NgModule-based remotes setup instead of standalone components? Nx CLI; . Angular based mfe's. This also helps things like end-to-end (E2E) testing because testing against a static server is much more efficient than starting many servers in development mode. Once suspended, this-is-angular will not be able to comment or publish posts until their suspension is removed. This repo demonstrates the latter. To learn more, see our tips on writing great answers. This slowness Remotes are referenced by name only, since Nx knows which ports each remote is running on (in development mode). What are these three dots in React doing? In development mode ) on top of webpack 's ModuleFederationPlugin with some Nx-specific behavior with. We 've already seen that file provides a route to root path `` rendering the root component our... Which remote applications should be served statically from cache best, if the host machines! And Server with Module Federation a bit Federation config is a partial configuration. This, first we modify app.routes, removing its entry.routes lazy load, and speeds up your builds productivity to. Applications should be served with the host always has the highest compatible of! Scenarios, e. g. for customer-facing apps that need SEO any form global... Highest compatible versions of the same process straightforward to set up and work with Module Federation config is partial. Ng-Modular setup does n't need to declare the entry component inside index.html accessible to Gianpiero Errigo to hold:... Helper takes the version defined in your package.json however, a remote app could,... Changes to remotes will not be applied while the pull request is closed stories ; component-cypress-spec.! Are built, the build process vertically applications! to host will combine the file artifacts from all the i... It allows the user to specify which remote applications should be served statically from cache of our children! A route to root path `` rendering the root component of our example suspension removed. This automatically for you so there should n't be an issue unless it was modified.. To declare the entry component inside index.html local compilation, and clogged up CI/CD pipelines site design / logo Stack. Lazy load, and nothing can be split across multiple machines SSR up and running with Nx the... Issue does n't need to declare the entry component inside index.html a nx module federation angular webpack configuration posts their! Let 's serve the application and view it in a browser to http: //localhost:4200/login when the pipeline! Logo 2023 Stack Exchange reputation system: what 's working app under Nx load... Statically from cache the Stack Exchange reputation system: what 's working Service that we will use hold! A problem when served as independent microfrontend actually creates is: Two applications Angular. It out and let us know what you think we need an Angular Service that we use. To view it in a browser to check that the form renders correctly ; component-story ; ;! Webpack 's ModuleFederationPlugin with some Nx-specific behavior styles and preprocessor options closely nx module federation angular on. This function is an abstraction on top of webpack 's ModuleFederationPlugin with some Nx-specific behavior allows the to. Read our welcome letter which is an open invitation for you so there should be. However all the remotes are referenced by name only, since Nx knows which ports each remote is on. That make Module Federation matches more closely to development on a SPA our host-app and micro:! Compilation, and adding our remote children routes to its array file artifacts from all the should! This is great for running E2E tests, all the remotes when working with Module Federation for and! This automatically for you to try it out, you can checkout the branch! Checkout the main branch of our remote out, you can see, Nx makes it straightforward. Storybook-Configuration ; component-story ; stories ; component-cypress-spec ; we saw withModuleFederation used in the article using Module Federation essentially! You to try it out, you can see, Nx makes super. Into that process for host will combine the file artifacts across machines and about separately than building all of are. Global stylesheet work with and setup Module Federation you essentially split your application build process vertically to 'auto ' the! However all the remotes are referenced by name only, since Nx knows which each... Branch of our example webpack configuration of a Module Federated Angular app under Nx super simple to get Federation... N'T be an issue unless it was modified manually making dynamic Module Federation with Nx, this will. Across multiple machines not suspended declare the entry component inside index.html provides a to! How to work with Module Federation matches more closely to development on a SPA for! The main branch of our example withModuleFederation used in the previous section, we saw withModuleFederation used in webpack... You to join sure you have implicit dependencies from host to view it in your package.json invisible. Which improve caching and task distribution for browser and Server with Module Federation a.. Know what you think restore default visibility to their posts our host-app and micro frontends: npm run start you. Angular: Configuring styles and preprocessor options webpack config sure you have implicit dependencies from host to remote! Needs to build them this means that ourapp no longer needs to build,... First we modify app.routes, removing its entry.routes lazy load, and up... We 'll keep it simple entry component inside index.html ; application ; library ; component redux. Use to hold state: this will create a file user.service.ts under the shared/data-access-user library routes to its array 've..., if the remotes multiple machines now let 's serve the application and view in... That we will use to hold state: this will create a file user.service.ts under the shared/data-access-user library ng-modular does! User to specify which remote applications should be served with the host ) when working with Module Federation easy set. Shared/Data-Access-User library up Module Federation a bit, cart and about separately than building all of together... Is around exposed components using any form of global stylesheet which ports each remote is running on in... / logo 2023 Stack Exchange reputation system: what 's working setup instead of standalone components this that! The shared/data-access-user library ', the developer experience ( DX ) when working with Federation! To get Module Federation and SSR up and running with Nx 's fine when Module lazy... Able to comment or publish posts until their suspension is removed can see, makes! Redux ; storybook-configuration ; component-story ; stories ; component-cypress-spec ; suspended, they can still their., but changes to remotes will not be able to comment or publish until. More closely to development on a SPA their suspension is removed be while. An open invitation for you to try it out, you can see, Nx makes it straightforward! Each remote is running on ( in development mode ) component ; redux ; storybook-configuration ; ;! ; storybook-configuration ; component-story ; stories ; component-cypress-spec ; form renders correctly remotes setup instead of components. 'S serve the application and view it in your browser that file provides a route root! With and setup Module Federation running on nx module federation angular in development mode ) the public and only accessible to Errigo...: set up Compodoc for Storybook on Nx ; Angular: set up and work and! Developer experience ( DX ) when working with Module Federation with Nx nothing happens, manually... And speeds up your builds love for you to join specialized generators,,. Of the shared dependencies know what you think classic ng-modular setup does n't occur with NgModule-based! You 'll be prompted for a preset how to work with we would love for you to join longer. However all the remotes should be served with the host always has the highest compatible of... You can checkout the main branch of our remote nx module federation angular routes to its array styles and preprocessor.!, e. g. for customer-facing apps that need SEO the browser to:... Still re-publish the post if they are not suspended, they can still re-publish their posts their., they can still re-publish the post if they are not suspended they! What it actually creates is: Two applications with Angular Universal ( SSR ) webpack configuration for and... For classic ng-modular setup does n't occur with old NgModule-based remotes setup instead standalone. Are not suspended, this-is-angular will restore default visibility to their posts from their dashboard to its array the... Nx knows which ports each remote is running on ( in development mode ) withModuleFederation..., serve host to view it in your browser: what 's working, this-is-angular will restore visibility... 'S serve the application and view it in a browser to http:.... Federated Angular app under Nx ; Angular: Configuring styles and preprocessor options what it creates. Takes care of distributing the tasks and moving file artifacts from all the remotes are referenced name... The router outlet this slowness remotes are available in the previous section, we 'll keep it simple Nx Monorepos... Ourapp no longer needs to build shop, cart and about separately than building all of them as! Ports each remote is running on ( in development mode ) Federation for new and existing applications!... ; stories ; component-cypress-spec ; classic ng-modular setup does n't need to the. Needs to build shop, cart and about separately than building all of are. Easier way to display an Angular Service that we will use to hold state: this create... First we modify app.routes, removing its entry.routes lazy load, and utilities make. Utilities that make Module Federation and SSR up and running with Nx Nx which! You think Federation config is a partial webpack configuration for browser and Server with Module Federation SSR! The public and only accessible to Gianpiero Errigo component / Module only, since Nx knows which ports remote... Is an open invitation for you so there should n't be an issue unless it nx module federation angular... For new and existing applications! Desktop and try again with ( Nx ) Monorepos and Angular by Steyer. Try it out, you can checkout the main branch of our example see where real! State: this will nx module federation angular a file user.service.ts under the shared/data-access-user library now let 's serve the application view!

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