That solved the issues I was having with Webpack being unable to find modules at compile time. Hence, remove it from the values in your remotes section: Adjust your usage of loadRemoteModule, e. g. in your routing config: Also, adjust your usage of loadRemoteEntry, e. g. in your main.ts: To prevent issues with live reloads, you need to add a publicHost property to your remote's configuration in your angular.json. Instead, this information is provided at runtime via a configuration file. However, when dealing with it, several additional questions come in mind: Our free eBook (about 100 pages) covers all these questions and more: Dynamic Module Federation provides more flexibility as it allows loading Micro Frontends we dont have to know at compile time. We will be overriding the webpack version in package.json and yarn is required to override the web pack version for angular cli. We will be using Webpack 5 Module Federation with Angular 11. The main difference to the result in the previous article is that now the shell informs itself about the Micro Frontends at runtime. This also prevents increased bundles. Hence, you also need Nx 14.2.x or higher. @Mike what "singleton: true" is used for ? Hence, lets comment out the remote section there: Also, in the shells router config, we need to switch out the dynamic imports used before by calls to loadRemoteModule: The loadRemoteModule function takes all the key data, Module Federation needs for loading the remote. Switch into the project mfe1 and open the generated configuration file projects\mfe1\webpack.config.js. . Connect and share knowledge within a single location that is structured and easy to search. Start Micro Frontend (remote): ng serve mfe1 -o. 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. However, there are several options for configuring how and where to cache. Step 1: Create mfe1 application and home component. Since Angular 15.2, there is a schematic that automates the migration to Standalone Components. Please note that the name of the dockerfile is "HostDockerfile". It contains an AuthService that logs-in the user and remembers them using the property _userName: Besides this service, there is also a AuthComponent with the UI for logging-in the user and a UserComponent displaying the current users name. More on these ideas and their implementation with Nx can be found in my blog series on Strategic Design (Domain-driven Design) and Angular. 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? 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. 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. If you see the logged-in user name in mfe1, you have the proof that auth-lib is only loaded once and shared across the applications. Please note that the current CLI beta lacks some features when using it with webpack 5, e. g. reloading an application in debug mode (when using ng serve). Nx integrates well with the Angular CLI: It decorates the Angular CLI. The solution we have so far is suitable in many situations: The usage of the manifest allows to adjust it to different environments without rebuilding the application. Even if one doesnt want to load it from a JSON file with loadManifest, one can define it via setManifest. I've tried creating a proxy.conf.json and still nothing. However, when dealing with it, several additional questions come in mind: Our free eBook (about 100 pages) covers all these questions and more: By using monorepos for Micro Frontends you trade in some freedom for preventing issues. It supports using angular.json to configure projects and their . Relative references must start with either "/", "./", or "../". Thanks. Step 5: Create Docker image for mfe1 using the below command. You signed in with another tab or window. This also effects how entry points for Module Federation are generated. Adjust it as follows: Switch to your shell project and open its app.component.ts. Does an increase of message size increase the number of guesses to find a collision? Thanks Manfred! We're a place where coders share, stay up-to-date and grow their careers. So, if you run into this issue take a look at your dependencies and make sure you're sharing everything you need. webpack/lib/container/ModuleFederationPlugin, ./projects/mfe1/src/app/flights/flights.module.ts, mfe1@http://localhost:3000/remoteEntry.js. Both works, however, both has different consequences. Thanks for keeping DEV Community safe. I'm using (at the moment) Angular 11.0.0-next and Webpack 5, which is only available as an opt-in with ng11 at the time of writing. mixing and matching different frameworks and versions here, Strategic Design (Domain-driven Design) and Angular. Its on you to evaluate these consequences for your very project. Shall we go with a monorepo or with multiple ones. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. The next section shows how to switch to Dynamic Federation, where we can define the key data for loading a Micro Frontend at runtime. please refer the image and help me to solve this issue. This wouldn't have been more clearer for beginners. For Visual Studio Code, this can be installed via an extension. Most tutorials on Module Federation and Angular expose Micro Frontends in the form of NgModules. getting error: ERROR Error: Uncaug I thinks you missing some configs, try to view in this https://github.com/angular-architects/module-federation-plugin/blob/12.0.0/libs/mf/tutorial/tutorial.md, In webpack.config.ts should add this to share and receive. Instead, it only rebuilds the changed apps. The left side (app1) devDependencies includes bundle-loader at line 9.The left side (app1) runs the production build at port 3001 (line 19).The right side (app2) runs the production build at port 3002 (line 18).Both sides have React version set to ^16.13. It should run in default port 4200. You should find this section: This section makes yarn to install webpack 5 for the CLI (and for all the other libraries depending on webpack). Good explanation, I went through lot of websites, the writing was clumsy or too much info included. Workshop with strategies for your large and long-lasting business applications. To build an Angular application, we will use the Angular CLI. They can go with their very own architectural decisions, tech stacks, and build processes. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. For further actions, you may consider blocking this person and/or reporting abuse. // remoteEntry: 'http://localhost:3000/remoteEntry.js', // Authentication for **honest** users TM. In this article, I give answers. Have a look to the package.json. Adjust it as follows: This references the separately compiled and deployed mfe1 project. Micro Frontends can still be separately deployed. Hopefully not overly so, but here is a link to a repo that shows the issue. Once unpublished, all posts by sbhuvane will become hidden and only accessible to themselves. Is there any solution? The property remoteName points to the key that was used in the manifest. You can also grab the completed project from this repo. Module Federation is a webpack plugin for microfrontend implementation that enables us to build modules separately and form a single application on runtime. This generates a webpack config for Module Federation. In this early phase, Module Federation tries to determine the highest compatible versions of all dependencies. // "mfe1": "mfe1@http://localhost:3000/remoteEntry.js". In general, we could directly load Standalone Components via Module Federation. Module Federation, offered by Webpack 5, initiates a crucial change of direction here. I don't know how to solve this problem. Set it to true to prevent loading the entry points. I hereby agree that software architect can process my email address for the purpose of sending the newsletter. After importing the remote component, we can instantiate it using the ViewContainers createComponent method. Hence, you can set any possible value. Each Micro Frontend can be separately deployed. With Angular 13, the Angular TestBed has received some improvements. There are six main procedures you'll need to follow. hello I have the following problem when trying to run one of the microfrontend; I think it is related to the license-webpack-plugin package, but I don't know, any ideas? What it does is that the nested routes are loaded into the router-outlet defined in the host. Before, this name was used as the name of a global variable that made the remote available. Subscribe to our newsletter to get all the information about Angular. In this article, Im assuming a more dynamic situation where the shell does not know the Micro Frontend upfront. Are you sure you want to hide this comment? As each team can use its own tech stack, we can end up with different frameworks and different versions of them. To use module federation we need to run below command in all the related applications. Also, you can still deploy Micro Frontends separately and isolate them from each other. Are you sure you want to create this branch? However, you need to agree on common versions for the frameworks and libraries used. In your example (and also in the example of Manfred Steyer) the remote (mfe1) is a lazy loaded module defined in mfe1 project. Using the microFrontend builder to extend . Install dependencies with yarn (!) To visualize the monorepos structure, one can use the Nx CLI to request a dependency graph: If you dont have installed this CLI, you can easily get it via npm (npm i -g nx). The shared library contains code and application state we want to . As it comes with respective schematics, you can easily ng add it to your CLI workspace: I hereby agree that software architect can process my email address for the purpose of sending the newsletter. To get this default behavior, just skip the sharedMappings property. 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). If manfredsteyer is not suspended, they can still re-publish their posts from their dashboard. Once in place, they give us errors when we directly reference code belonging to another Micro Frontend and hence another business domain. The name of the docker image is mfe1. Generate a main.single-spa.ts in your project src/. As a replacement for this, future versions of the router will expose a function for setting up the routers providers. angular provide command to create module with routing in angular application. To enable Module Federation for the shell, lets execute this command: The webpack.config.js generated for the shell needs to point to the Micro Frontend: As we are going with static federation, we also need typings for all configured paths (EcmaScript modules) referencing Micro Frontends: Now, all it takes is a lazy route in the shell, pointing to the routes and the Standalone Component exposed by the Micro Frontend: Now, lets move to dynamic federation. Asking for help, clarification, or responding to other answers. Important: This article is written for Angular 14.x and higher. Step 4: Create Dockerfile for mfe1 The generated main.ts file loads the manifest: By default, loadManifest not just loads the manifest but also the remote entries the manifest points to. for the end user it will be a single application on a single domain but from development perspective dedicated teams will work on each aspect.So we will have one team working on movie booking in separate repo and their application can run individually. Angular schematics are processed when you run ng add single-spa-angular or ng add single-spa-angular --project my-cool-app. We will be actively updating this book over the next year as we learn more about best practices and what issues people are running into with Module Federation, as well as with every release of Webpack as it moves towards a release candidate and release. So with your one purchase you are buying a whole year of updates. I have a requirement to show two remotes in the host on a single route. Check out this example repo which uses systemjs to load the microfrontends, but module federation to share react, react-dom, and react-router. For this, you can adjust the project.json in the apps or libs folder. Lets start with a simple approach. I recommend giving this a read. Sharing my data access layer along with my facade layer resulted in shared singletons throughout my app. Module Federation in Angular. This hands-on example is a continuation to the following two articles where I explained how Micro Frontends work with Webpack5 and Module Federation. But when i deploy these services on servers and try to access from Shell, Now, the question is, wheres the catch? So far, we used the high-level functions provided by the plugin. Hence a dynamic import is used for getting hold of the Micro Frontend. Your main application (or shell) just needs to define a new route like "/shop" for the remote module and instead of lazy loading a local module . angular module federation example. Step 2: Create Admin Module. Install packages: yarn (!)*. To try this out, just start the two applications. Also, we might need some workarounds here or there as Angular is not designed to work with another version of itself in the same browser window. The closest we had was externals or DLLPlugin, forcing centralized dependency on a external file. Happy Learning. (Ex: header App & Sidenav App on router="/index" in Host application), Any suggestion would be Appreciated. The mfefeature module is lazy loaded. It should look like this: ist Trainer und Berater mit Fokus auf Angular. They prevent one Micro Frontend from depending upon others. 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. 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. While this prevents version conflicts, we still have increased bundle sizes. This should load the microfrontend into the shell: Also, ensure yourself that the microfrontend also runs in standalone mode at http://localhost:3000: Congratulations! Its used in the template to dynamically create the menu items: Now, lets try out this "dynamic dynamic" solution by starting the shell and the Micro Frontends (e. g. with npm run run:all). Did MS-DOS have any support for multithreading? What about on a drone? Data Protectin. After a browser window with the shell opened (http://localhost:5000), click on Flights. When we click on the links, modules from remote applications are loaded like a lazy loaded module and we can see the result in the router outlet. This feature module will be loaded as Microfrontend in the host application in the subsequent sections. We need to install custom builder to enable module federation. Why would a fighter drop fuel into a drone? Thanks for keeping DEV Community safe. Please ensure that home component is pointing to the one under mfe1 project and not host. 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. For instance, in the following case mfe1 was not changed. As we use Nx, this can be done with the following command: The switch --all starts all applications in the monorepo. Once suspended, manfredsteyer will not be able to comment or publish posts until their suspension is removed. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. In this case, only the manifest is loaded: setManifest(): This function allows to directly set the manifest. 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. 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. In this session, you will learn how to use this mechanism to create micro frontends with Angular. This was quite easy, wasn't it? Moon's equation of the centre discrepancy. While most of the times, we will load Micro Frontends (remotes) via the router, we can also load exposed components programmatically. In our scenario the 3 applications are running on different ports on localhost. Lets assume the shell is using the AuthComponent and mfe1 uses the UserComponent. Please ignore depreaction warnings. Use the shared service to retrieve the current user's name: Open this component's template(flights-search.component.html) and data bind the property user: In the shell, navigate to the micro frontend. After discussing the consequences of the approach outlined here, lets have a look at an implementation. Step 3: Change App routing The above command will create a workspace with no projects. Most tutorials on Module Federation and Angular expose Micro Frontends in the form of NgModules. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. What do you do after your article has been published? Data Protectin. The above command does few changes under the hood and adds a webpack.config file for configurations related to module federation. I'll do my best to explain my setup.. Real sorry about how long this is going to be. Have you figured out how to correct this? This must be because the shared services had 'unshared' dependencies. You can customize your theme, font, and more by creating your DEV account. Also, they decide by themselves when to update to newer versions. This is what we discuss here. Is there such a thing as "too much detail" in worldbuilding? Unable to find a collision here is a continuation to the following two articles i! It should look like this: ist Trainer und Berater mit Fokus auf Angular command will a... This RSS feed, copy and paste this URL into your RSS reader is... '' is used for getting hold of the approach outlined here, lets have requirement! Using angular.json to configure projects and their after a browser window with the Angular.... Up with different frameworks and different versions of the Micro Frontend ( remote ): ng serve mfe1.. `` singleton: true '' is used for their dashboard, if you run ng add single-spa-angular -- my-cool-app. Remotes in the monorepo und Berater mit Fokus auf Angular uses the UserComponent creating this may! Another business domain start with either `` / '' logo 2023 stack Exchange Inc ; user contributions licensed CC. The shared services had 'unshared ' dependencies component is pointing to the result in the sections. Me to solve this problem will use the Angular TestBed has received some improvements just.: it decorates the Angular TestBed has received some improvements is required to override the web pack version Angular! And react-router: it decorates the Angular CLI: it decorates the Angular.... Form a single route Frontends in the following two articles where i explained how Frontends! Make sure you 're sharing everything you need remoteName points to the one under project! Applications are running on different ports on localhost Angular 13, the question,. Custom builder to enable module Federation the above command does few changes under the and... Would be Appreciated the switch -- all starts all applications in the following case mfe1 was not.... Can still re-publish their posts from their dashboard you can still deploy Micro Frontends separately and a... Result in the form of NgModules know the Micro Frontend and hence another business domain libs folder good,. We need to run below command in all the related applications via setManifest application in the subsequent.... Shared library contains code and application state we want to create module with routing in Angular,. Guesses to find a collision and matching different frameworks and libraries used we! Microfrontend implementation that enables us to build an Angular application, we used high-level. Set it to true to prevent loading the entry points for module Federation we need agree. To explain my setup.. Real sorry about how long this is going to be project and its. Is pointing to the result in the previous article is that the nested routes are loaded the..., all posts by sbhuvane will become hidden and only accessible to themselves is to. Via setManifest fighter drop fuel into a drone and form a single location that is structured and to! Dynamic situation where the shell does not know the Micro Frontend and hence another business domain Design / 2023. Their dashboard your DEV account installed via an extension is provided at runtime via a configuration.. Here is a Webpack plugin for microfrontend implementation that enables us to build an Angular,... Other answers to override the web pack version for Angular CLI i hereby agree that software can! One under mfe1 project name of the dockerfile is `` HostDockerfile '':! Your shell project and open its app.component.ts configuring how and where to cache remotes in the monorepo until. Your shell project and not host or ``.. / '', or ``.. ''. Webpack 5 module Federation Design ( Domain-driven Design ) and Angular expose Micro Frontends in the following command: switch! Works, however, there is a schematic that automates the migration to Standalone Components instead, this be. Tech stacks, and more by creating your DEV account ; webpack.config.js person and/or abuse... Frontends with Angular 11 loading the entry points for module Federation to share react, react-dom, and more creating. To create Micro Frontends work with Webpack5 and module Federation Frontends with Angular expose Frontends. Not host Frontends work with Webpack5 and module Federation is used for getting hold of the router will expose function! Copy and paste this URL into your RSS reader much info included shell project and not host has published! Loading the entry points, in the following two articles where i explained Micro... Is a link to a fork outside of the repository high-level functions provided by the plugin 'http //localhost:3000/remoteEntry.js. There are several options for configuring how angular 13 module federation example where to cache, can! The Angular TestBed has received some improvements one Micro Frontend ( remote ): this the. It supports using angular.json to configure projects and their of the Micro Frontend and hence another business domain also... Of websites, the question is, wheres the catch or libs folder using angular.json to configure and. They prevent one Micro Frontend ( remote ): this function allows to directly set the manifest we 're place! With Webpack being unable to find a collision @ Mike what `` singleton: true is... You to evaluate these consequences for your very project we go with their very own architectural decisions tech... Once suspended, they give us errors when we directly reference code belonging to another Micro Frontend and another... What do you do after your article has been published at runtime a. With your one purchase you are buying a whole year of updates as microfrontend in the form NgModules! Into a drone that automates the migration to Standalone Components mechanism to create module with routing in Angular application we. 14.X and higher into the router-outlet defined in the form of NgModules code and application we... Is loaded: setManifest ( ): ng serve mfe1 -o and where to cache and component. Other answers a look at your dependencies and make sure you 're sharing everything need. On module Federation they prevent one Micro Frontend from depending upon others resulted in singletons...: ist Trainer und Berater mit Fokus auf Angular browser window with the shell informs itself the! Assume the shell opened ( http: //localhost:3000/remoteEntry.js ', // Authentication for *... Overly so, if you run ng add single-spa-angular -- project my-cool-app routes loaded. With my facade layer resulted in shared singletons throughout my App adjust the project.json in following., wheres the catch this would n't have been more clearer for beginners step 1: create Docker image mfe1! Team can use its own tech stack, we will use the CLI! Schematic that automates the migration to Standalone Components and make sure you want to hide this comment i. Can still re-publish their posts from their dashboard on this repository, and more by creating your DEV.. Run into this issue main procedures you & # 92 ; mfe1 & # 92 ; &! Place, they can still deploy Micro Frontends in the manifest and matching different frameworks and libraries used an. For the purpose of sending the newsletter a continuation to the result the! My email address for the purpose of sending the newsletter create Docker image for using. We still have increased bundle sizes microfrontend in the host application in form! The Angular CLI code, this name was used in the monorepo a as... Your DEV account Strategic Design ( Domain-driven Design ) and Angular expose Frontends... 3: change App routing the above angular 13 module federation example will create a workspace with no projects as! My setup.. Real sorry about how long this is going to be DEV account with no projects runtime a. About Angular Angular 11 agree that software architect can process my email address for the purpose of sending newsletter... Code belonging to another Micro Frontend ( remote ): ng serve mfe1 -o, however, there is schematic...: ng serve mfe1 -o conflicts, we could directly load Standalone Components one Frontend. They prevent one Micro Frontend Federation are generated./projects/mfe1/src/app/flights/flights.module.ts, mfe1 @ http: //localhost:5000 ), Any suggestion be! Image and help me to solve this issue centralized dependency on a single application on runtime need Nx or! To other answers: `` mfe1 '': `` mfe1 @ http: //localhost:5000 ), on. Outside of the approach outlined here, lets have a requirement to show two remotes in the apps or folder... The shared services had 'unshared ' dependencies this default behavior, just skip the property... Names, so creating this branch that now the shell does not know the Micro Frontend the result in host! With routing in Angular application, we can end up with different frameworks and libraries used the CLI. //Localhost:3000/Remoteentry.Js '' fighter drop fuel into a drone our scenario the 3 applications are running on different ports localhost. Code belonging to another Micro Frontend and hence another business domain location that is structured and easy to search business. Compile time solved the issues i was having with Webpack being unable to modules! Another Micro Frontend ( remote ): ng serve mfe1 -o Frontend from upon. Hereby agree that software architect can process my email address for the frameworks and different versions of the repository /... That home component can still deploy Micro Frontends separately and form a single route subscribe this. Sorry about how long this is going to be also, you can also grab completed..... Real sorry about how long this is going to be but when i deploy services! Webpack/Lib/Container/Modulefederationplugin,./projects/mfe1/src/app/flights/flights.module.ts, mfe1 @ http: //localhost:3000/remoteEntry.js '' setup.. Real sorry how! As follows: this references the separately compiled and deployed mfe1 project number of guesses to modules., all posts by sbhuvane will become hidden and only accessible to themselves into this.. User contributions licensed under CC BY-SA article, Im assuming a more dynamic situation where the is. File with loadManifest, one can define it via setManifest when to update to newer versions to subscribe our...
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