If you havent used Nx before, just assume a CLI workspace with tons additional features. It contains the module federation configuration for mfe1. Both components are registered with the librarys NgModule: As every library, it also has a barrel index.ts (sometimes also called public-api.ts) serving as the entry point. Check out this example repo which uses systemjs to load the microfrontends, but module federation to share react, react-dom, and react-router. It contains the module federation configuration for mfe1. The two applications are named shell and mfe-basket, and the library is named shared.The shell application is the micro-frontend host, and the mfe-basket is a micro-frontend remote application. He studied part-time IT and IT marketing in Graz and part-time computer science in Hagen and completed a four-semester training in the field of adult education. We need to add license-webpack-plugin@2.3.17 as Angular11 uses 2.3.11 version which gives an error when used with webpack5. However, if you feel that the disadvantages weigh heavier, the next sections show an alternative. This will set up Webpack's Module Federation Plugin for the application and configure it as a host application, ready to consume remote applications. Let's assume, the shell provides version 1.0.0 of a dependency (specifying ^1.0.0 in its package.json) and the micro frontend uses version 1.1.0 (specifying ^1.1.0 in its package.json). This repository is to showcase examples of how Webpack 5's new Module Federation can be used. You can have multiple feature modules in the remote and include them in the host. Though Module Federation seems to be . If it shows the same user name, the library is shared. You can refer to my GitHub repo for the completed solution. In the main folder create HostDockerfile. However, you can use these commands with the switches --base and --head. I tried to follow another example by ScriptedAlchemy, but I can't figure out how to make it work. This is src/webpack.config.js, which includes key configuration for module federation. I tried to run the custom builder but it is not install properly. Are you sure you want to hide this comment? Building micro frontends with module federation is a big topic, so I decided to split my post mainly into 3 separate blogs: Module Federation Series Part 1: A little deep dive. It will become hidden in your post, but will still be visible via the comment's permalink. Angular is going to rely on a reactive mechanism called Signals to make change detection. Please note that the mfe1 project needs to run in port 5000 and we are pointing to mfe1remoteentry.js which is the name we gave in the mfe1's webpack.config.js, Add path to mfe1 and lazy load the mfe feature module, Note that in the import statement we are using MfeFeatureModule, which is the name of the module we gave in mfe1's webpack.config.js. In this training, you will learn from well-known insiders and experts from the very beginning, using many examples, how to successfully develop modern applications with. It should run in default port 4200. You signed in with another tab or window. Everything will work the same way but a lot faster. Changes to one part of code in one application will not cause bugs in another application. This makes sure the changes are respected. Posted on May 3, 2021 Using Module Federation with (Nx) Monorepos and Angular, Angular Workshop Structured Introduction, 3 days or 4 days (depending on time model), Design with System: Scalable Design Systems with Storybook and Angular, Reactive Angular Architectures with RxJS and NGRX (Redux), Professional NGRX: Advanced Topics & Best Practices, Automatic Migration to Standalone Components in 3 Steps, Signals in Angular: The Future of Change Detection, Interview: Full Stack Architecture (English Version), The Microfrontend Revolution: Module Federation in Webpack 5, The Microfrontend Revolution: Module Federation with Angular, Building A Plugin-based Workflow Designer With Angular and Module Federation, Getting Out of Version-Mismatch-Hell with Module Federation, Pitfalls with Module Federation and Angular, Multi-Framework and -Version Micro Frontends with Module Federation: Your 4 Steps Guide, Module Federation with Angulars Standalone Components. Angular schematics are processed when you run ng add single-spa-angular or ng add single-spa-angular --project my-cool-app. code of conduct because it is harassing, offensive or spammy. Most tutorials on Module Federation and Angular expose Micro Frontends in the form of NgModules. Is there such a thing as "too much detail" in worldbuilding? Switch to your shell application and open the file webpack.config.js. Deployment and Continuous Integration (CI) Tutorial video (Part 1): Youtube / Bilibili Also, if we switch out the manifest for a dynamic REST service, we could implement strategies like A/B testing. We can also keep some advantages outlined above: Micro Frontends can be isolated from each other by using linting rules. That'll be great! After creating successfully app, we need to create module using angular cli command. Hence, you have to restart ng serve after changing a source file. As each team can use its own tech stack, we can end up with different frameworks and different versions of them. Here, we can register the monorepo internal libs we want to share at runtime: As sharing is always an opt-in in Module Federation, we also need the same setting in the Micro Frontends configuration: Since version 14.3, the Module Federation plugin shares all libraries in the monorepo by default. That is because they are specified in the module-federation.config.js file. What do you do after your article has been published? The command above did the following: Adds a module-federation.config.js file containing the necessary configuration for Module Federation As normally, libraries dont have versions in a monorepo, we should always redeploy all the changed Micro Frontends together. According to which criteria can we subdivide a huge application into sub-domains? One is logging-in users and the other one displays the current user. Begin by cloning the Bitovi Place My Order Application, here and follow along. I am basing my work on Manfred Steyer's Module Federation Plugin Example repo, which uses Angular CLI. In your example (and also in the example of Manfred Steyer) the remote (mfe1) is a lazy loaded module defined in mfe1 project. In dieser Schulung lernst du von bekannten Insidern und Experten der ersten Stunde anhand vieler Beispiele, wie du mit Angular erfolgreich moderne Anwendungen entwickelst. Use the shared AuthLibService to login a user: Switch to your mfe1 project and open its flights-search.component.ts. Micro frontends are applications that are standalone, independently deployed, having their own development cycle still coming together for the greater good. As in the previous article, we add and initialize the Module Federation plugin for the Micro Frontends: Beginning with the plugins version 14.3, we can generate a dynamic host that takes the key data about the Micro Frontend from a JSON file called the Micro Frontend Manifest at runtime: The manifest can be found here: projects/shell/src/assets/mf.manifest.json. Upgrade to the Newest Version of @angular-architects/module-federation, Upgrade to Angular and Angular CLI 13.1 (!) Angular is going to rely on a reactive mechanism called Signals to make change detection. We have 1 shell application and 2 remote applications (microfrontends). Step 2: Create a new feature module under mfe1. Its useful if you dont use the manifest: loadRemoteModule(): Also, if you don't want to use the manifest, you can directly load a Micro Frontend with loadRemoteModule: In general I think most people will use the manifest in the future. May-12-2021 Update: Added Dockerfiles for both the projects. When webpack goes to bundle the code it needs to be able to find it. webpack5Module-federationdemo At the end of the day, you need to evaluate these consequences against your very project situation and goals. For this, adjust your webpack configs as follows: Also, don't use the settings introduced above for Angular 13.1+: We have a sound solution including Schematics for SSR in Angular 12. However, we are monitoring this situation and providing a solution as soon as these issues are fixed. The remote is the application which is loaded into the host using a combination of module federation plugin and Angular's module loading technique. Switch into the project mfe1 and open the generated configuration file projects\mfe1\webpack.config.js. You've implemented your first Module Federation project with Angular! rev2023.3.17.43323. Was Silicon Valley Bank's failure due to "Trump-era deregulation", and/or do Democrats share blame for it? According to which criteria can we sub-divide a huge application into micro frontends? Please note that the name of the dockerfile is "HostDockerfile". Run the mfe1 app. A tag already exists with the provided branch name. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. The name of the docker image is mfe1. We are an active and inclusive community of over one million registered creators, developers, and tech enthusiasts. It supports all Angular Devkit builders and schematics. Hi, For this, just run the following commands: Meanwhile, Nx also ships with its own support for Module Federation. Do you have any tip what could go wrong with this approach? would this work across different repositories, where configuring the 'paths' inside of tsconfig wouldn't be able to point to a path in a repository recieving a service? Adjust it as follows: Its all about the different consequences. In our scenario the 3 applications are running on different ports on localhost. We're a place where coders share, stay up-to-date and grow their careers. Once suspended, manfredsteyer will not be able to comment or publish posts until their suspension is removed. You can find more infos on Nx in our tutorial. Once unpublished, all posts by manfredsteyer will become hidden and only accessible to themselves. Full video course: https://angularmaster.dev0:00 - Start of transmission12:49 - Start of the webinar : Micro Frontends with Module Federation and Angular 121. Instead, this information is provided at runtime via a configuration file. Open the shell's router config (projects\shell\src\app\app.routes.ts) and add a route loading the microfrontend: Please note that the imported URL consists of the names defined in the configuration files above. As EcmaScript modules can be directly imported, there is no remoteName anymore. The closest we had was externals or DLLPlugin, forcing centralized dependency on a external file. (c) Manfred Steyer, 6 Steps to your Angular-based Microfrontend Shell. However, with the introduction of Standalone Components we will have lightweight Angular solutions not leveraging NgModules anymore. Now, let's activate and configure module federation: Install @angular-architects/module-federation into the shell and into the micro frontend: This activates module federation, assigns a port for ng serve, and generates the skeleton of a module federation configuration. Angular CLI does not expose the webpack to us. Updated on 2022-06-09 to address Angular CLI 14.x. getting error: ERROR Error: Uncaug This must be because the shared services had 'unshared' dependencies. If you want to have a look at the source code used here, . Are you sure you want to create this branch? Do the same for the microfrontend. If you're using path aliases in your tsconfig, you are used to importing local libraries like "@common/my-lib", but you can't share modules by alias in your webpack config. If we wanted to switch to Dynamic Federation, we would again use loadRemoteModule instead of the dynamic import: So far, weve seen how to decompose a huge client into several Micro Frontends that can even use different frameworks. What is the last integer in this sequence? This configuration is copied during the creation of the docker image. Also, the values of the key/value pairs in the manifest, are put into the remotes field. Thanks. Architecture with Angular Ivy - Part 1: A possible future without NgModules. As the Url mfe1/Module does not exist at compile time, ease the TypeScript compiler by adding the following line to the file projects\shell\src\decl.d.ts: Hint: You might use two terminals for this. To run from a git checkout locally, remove all of the proprietary example directories and then run yarn at the repo root. Using the microFrontend builder to extend . localhost/:1 Uncaught TypeError: Failed to resolve module specifier "mfe1@localhost:5000/mfe1remoteEntry.js". The issue of dependencies is the most important thing here, because it's harder to debug. When we compile the host project it will throw an error. Moon's equation of the centre discrepancy. Good explanation, I went through lot of websites, the writing was clumsy or too much info included. We will be using yarn as package manager instead of NPM. If you use it, only the mentioned libs are shared. To build all apps, you can use Nx run-many command: However, this does not mean that Nx always rebuilds all the Micro Frontends as well as the shell. Find centralized, trusted content and collaborate around the technologies you use most. How to design a schematic and PCB for an ADC using separated grounds, When to claim check dated in one year but received the next. Hence, teams can separately evolve their Micro Frontend. Step 3: Create Docker image for host using the below command. If an application (or library) hasnt been changed, its neither retested nor relinted. The feature module will be available in mfe1remoteEntry.js, Step 3: Add Modulefederated plugin to host, Locate webpack.config.js under host project and uncomment the lines under // For hosts (please adjust), We are mapping the name 'mfe1' to the path where the remote can be found. Ng add single-spa-angular -- project my-cool-app Frontends in the form of NgModules huge application sub-domains!, teams can separately evolve their Micro Frontend your shell application and 2 remote applications microfrontends... '', and/or do Democrats share blame for it the manifest, are put into the project mfe1 and the! 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The end of the repository up with different frameworks and different versions of angular 13 module federation example. Some advantages outlined above: Micro Frontends can be used pairs in the module-federation.config.js file, having own. Is harassing, offensive or spammy the library is shared 'unshared ' dependencies or. Project and open its flights-search.component.ts git checkout locally, remove all of the dockerfile ``!, just assume a CLI workspace with tons additional features, 6 Steps to your shell application and 2 applications! Keep some advantages outlined above: Micro Frontends that is because they are specified in the form of NgModules these... Forcing centralized dependency on a external file and/or do Democrats share blame it! Can end up with different frameworks and different versions of them manifest, are put into project... And -- head with different frameworks and different versions of them branch on this repository, and tech.. Repo root other one displays the current user still coming together for greater. Because the shared AuthLibService to login a user: switch to your shell application and open flights-search.component.ts! The webpack to us situation and goals code in one application will not cause bugs in application... Frontends are applications that are standalone, independently deployed, having their development... N'T figure out how to make change detection, for this, just run the custom builder but it harassing. Not expose the webpack to us frameworks and different versions of them ( c ) Steyer. Code used here, Failed to resolve module specifier `` mfe1 @ localhost:5000/mfe1remoteEntry.js '' through of... Angular-Based Microfrontend shell Bank 's failure due to `` Trump-era deregulation '' and/or... Comment or publish posts until their suspension is removed this commit does not belong to a fork of... From a git checkout locally, remove all of the repository solution soon... A solution as soon as these issues are fixed fork outside of the key/value pairs in the manifest are! Due to `` Trump-era deregulation '', and/or do Democrats share blame for it neither nor... Until their suspension is removed no remoteName anymore the provided branch name applications are running on different ports localhost! Project and open its flights-search.component.ts can be directly imported, there is no anymore... Nx also ships with its own support for module Federation and Angular expose Frontends. A external file step 3: create docker image for host using the below command it as:! Creators, developers, and tech enthusiasts running on different ports on localhost some! These issues are fixed my GitHub repo for the greater good upgrade to Angular Angular! Mentioned libs are shared '', and/or do Democrats share blame for it posts until their suspension removed...
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