If SPA A wants to utilize another SPA's (SPA B) modal for whatever, the system in place relies on opening a browser-sized iframe to SPA B where . Is there any consideration to how to control access to the remote components? module-federation/node module-federation/utilities module-federation/typescript Generate an application Run nx g @nrwl/next:app my-app to generate an application. For some applications, going granular is an ideal solution and leads to the best performance in your application. As discussed in the previous article, sharing code is critical to using module federation successfully. It does this by pulling them out of the the build pipeline and out of your apps. ModuleFederationPlugin combines ContainerPlugin and ContainerReferencePlugin. It walks you through everything you need to do to start with Module Federation. Without module federation your clients also can load your code, no security problems here, anyway if you want to do it more security, you should setup this on server level. Explore the source of a simple blog that utilizes the ContainerReferencePlugin to reference federated components from this website. Hey guys, new member here. Otherwise, if its the only micro-app using that library, it will simply bundle a version of that library within itself (ex. if (!await doGlobalAuth ()) throw new Error("Not authorized"); module.exports.get = async (modId, rest) => {, // This could be more easily handled gracefully by a consumer via dynamic importing. . and theming (styled-components for us), you cannot rely on this. Now, we want to take those same principles and apply them to the custom library code we have living in the libs directory. Dynamic Remote Containers: docs. This means that when webpack bundles everything together, one large file is created for this import statement that contains everything (well call it common.js). Aegis core lib. Module Federation in Angular. Responsibility of our micro frontend projects is to expose a component. Specifically, when we build a particular library, we actually look at the folder containing the library and generate a unique hash based off of the contents of the directory. This is the system I want module federation to replace, but I do have a big question - is there a way to prevent 3rd party applications from loading modals they shouldn't? This is an easy way to ensure that as new paths are added to your libraries, they are automatically picked up by webpack: How does webpack currently treat this library code? Eliminate the need for deployment automation. "Practical Module Federation" is the first, and only, book on Webpack 5's innovative new live code sharing mechanism. Beta If SPA A wants to utilize another SPA's (SPA B) modal for whatever, the system in place relies on opening a browser-sized iframe to SPA B where the modal is displayed. Webpack plugin external-remotes-plugin. PowerShell Copy Get-ADFSProperties The property is ExtendedProtectionTokenCheck. To solve this problem, we decided to use a unique identifier to identify the library version. Went looking for this reddit because I want to introduce module federation to my company. Give feedback. A Rollup plugin which enables consumption of Federated Modules. In this instance, App A and B will use their own versions within each of their bundles. The Module Federation has two main components: The Remote Federated Module / Microfrontend The host/portal/ container Federated Module The Host will consume and render the exposed. Chunk loading should load everything needed in parallel (web: single round-trip to server). At this point you should have a fairly good grasp on how both vendor libraries and custom libraries are shared in the module federation system. Control from consumer to container Overriding modules is a one-directional operation. Case Studies A Blog Utilizing This Websites Modules const doModuleAuth = async (modId) => true; module.exports.init = async (args) => {, // This will most likely totally blow up the consuming application. Extended protection for authentication is a feature that mitigates against man in the middle (MITM) attacks and is enabled by default with AD FS. Webpack module federation is quite new but has already changed the architectural concepts of building modern web applications. Webpack Module Federation is actually solving all these issues in a much more elegant way. I'll be doing my own thought process on this since it's a domain-specific concern regardless but I was just curious to ask the question to the community as I'm still figuring out what webpack does inherently. I want to introduce module federation to my company. Module Federation allows to directly bundle shared dependencies into your app's bundles. Module parse failed: Unexpected token i in JSON at Migrating app to use Module Federation and Micro-frontends, Press J to jump to the feed. If it needs a library that hasnt been loaded in yet (or the version it needs isnt compatible with the version App A loaded in), then it will proceed to load on its own. See the next article in the series to learn how we build and deploy our application. This way, if the contents of the folder change, then the version does as well. Promise Based Dynamic Remotes: docs. The book also covers many practical topics include; state sharing across shared code, different deployment options, sharing non-view related code, writing your code to be resilient to code and network failures, and so much more. Went looking for this reddit because I want to introduce module federation to my company. Before You Proceed: The remainder of this article is very technical in nature and is geared towards engineers who wish to learn more about sharing custom library code between your micro-apps. Unfortunately, such a situation can confuses webpack Module Federation when trying to auto-detect the needed versions of peer dependencies. Can you see the problem? The helper function share used in this generated configuration replaces the value 'auto' with the version found in your package.json. So as we did, youll want to do your own performance analysis and use that as the basis for your approach. This can be interesting to improve an application's startup performance, when there are lots of shared dependencies. Was this translation helpful? Right now, my company has an ecosystem set up where multiple Angular SPAs are deployed under a common domain. This is because these items live in memory and are shared at a global level, which means you cant rely on them being confined to a physical file. To activate it, we need a custom builder that, e. g. ships with the community solution @angular-architects / module-federation. In this instance, once our applications get out of sync on production (i.e. The setting requiredVersion: 'auto' is a little extra provided by the @angular-architects/module-federation plugin. As shown below, the application begins by importing the main index file which exposes everything in tenable-io/common. Sharing our libraries is similar to the vendor libraries discussed in the previous article. Specifically, we went from storing our notifications under an object called notices to storing them under notifications. You can use any of the plugins above to generate applications as well. Note: We are once again leveraging the tsconfig.base.json to dynamically build out the libs that should be shared. However, when it comes to things like state (Redux for us), storage (window.storage, document.cookies, etc.) To demonstrate why this was a bad idea, well walk through each of these import types: starting from the most global in nature (importing the main index file) and moving towards the most granular (importing a specific file). This may be a domain-specific concern instead but I was curious if there was any pre-existing thought or prior art on limiting by auth or by request (e.g. As an example scenario: say you have . if (!await doModuleAuth(modId)) throw new Error("Not authorized"); You signed in with another tab or window. This is the system I want module federation to replace, but I do have a big question - is there a way to prevent 3rd party applications from loading modals they shouldn't? Before You Proceed: If you wish to see the code associated with the following section, you can check it out in this branch. This prevents several issues. Hence, you don't need to load an additional bundle per shared dependency. We highly recommend you evaluate the structure of your libraries and determine whats going to work best for you. Say goodbye to divergent styles and duplicate components throughout parallel teams. We then move down a level in our import statements and import from subdirectories within tenable-io/common (components and utilities). Since this was originally a directory (and not a library), our imports from it varied quite a bit. For example say we're trying to make a system of paid plugins that are able to be installed on an instance, and the plugins are federated (so are long living for any instance to use), but you should only have plugins if you have a particular license. This test ensures that communication between the local Exchange server and the Microsoft Federation Gateway is working correctly. In short, each parts of the application can come with their own libraries, that will be made available . As your application grows, so does the amount of code you share. We are going to consider four solutions available to us: Environment variables. If SPA A wants to utilize another SPA's (SPA B) modal for whatever, the system in place relies on opening a browser-sized iframe to SPA B where the modal is displayed. It does this by pulling them out of the the build pipeline and out of your apps. This code is already contained in the common.js file above. Since version 12, the Angular CLI uses webpack 5. Gone are the days of updating each consuming application after making a change to a shared NPM package. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Imagine that we continue to add more components: You may get to a certain point where you think it would be beneficial to not bundle these files together into one big file. When App B is loaded in its going to do the same thing. In these instances, we needed to ensure that all the micro-apps were deployed at the same time to ensure the applications and the state, store, and theming were all in sync. Sure, and I get that. https://gist.github.com/jacob-ebey/23aee3036c0c0c78a0b9369a5d8286ff. You can read more about how we handled this via a Jenkins bootstrapper job in the next article. That's just how the web works. To verify the settings, you can do the following: The setting can be verified using the below PowerShell cmdlet. By doing this, we can ensure micro-apps will only share custom libraries if the contents of the library match. Typescript support for module federated apps Project Status This project is now moved to module-federation/nextjs-mf. As shown below, at times we imported from the main index file of tenable-io/common (tenable-io/common.js), but in other instances we imported from sub directories (ex. remotes This is the primary difference between the host application and the. This key data is just several strings, hence you can load it from literally everywhere. To demonstrate this situation, let's install @angular/material and @angular/cdk in a version that is at least 2 versions behind our Angular version. Installation $ npm i @module-federation/typescript Usage As it comes with respective schematics, you can easily ng add it to your CLI workspace: Certificates are checked to ensure they're valid and can be used with the Microsoft Federation Gateway. At this point the code is not shared in any way and each application simply pulls the library code from its own bundle. Thank you so much for pointing this out to me. Teams can consume components at runtime instead of as part of their build pipeline. This was the purpose of the serve script shown above, i.e. Typically, shared code lives in an actual file (some-file.js) that resides within a micro-apps bundle. Currently, you could import these chunks but they would have to come from your same project. When using Nx, you can create multiple applications and libraries in the same workspace. Module federation for the backend. Dynamic Remotes in Webpack Module Federation. Luckily Webpack Module Federation supports dynamically defining URLs for our remote applications. Webpack today is not just a tool for building client-side applications, it can be targeted to multiple environments like Node.js or Electron. As you can imagine, this can have a dramatic impact on the performance of your application. Right now, my company has an ecosystem set up where multiple Angular SPAs are deployed under a common domain. Ohhh good point, that clients can load the app bundle as-is now. With federated access, you have a secure, seamless sign-on experience to external applications, helping to eliminate the need for providing multiple user IDs and passwords. Similar to the vendor libraries approach, we need to tell module federation that we would like to share these custom libraries. Now, you can have these chunks (Webpack builds) from a different origin, which means, a different project! However, the mechanism of defining a version is different. If we investigate the network traffic again and look for libs_design-system_components (webpacks filename for the import from @microfrontend-demo/design-system/components), we can see that this particular library has now been split into its own individual file. Give feedback. With vendor libraries, we were able to rely on the versions defined in the package.json file. We will be using a yarn mono-repo structure here for simplicity, but the idea behind Module Federation is to allow teams to operate autonomously, so in the real world, your SPA's would most likely live in their own repositories. As illustrated below, App A and B both use Lib 1. In the last article we focused on sharing vendor code. Hybrid Sharing Leads To Bloat When we first started using module federation, we had a library called tenable.io/common. However, only App B gets deployed to production with the new code. Limitations Lib 2). Assuming you read the previous article, you now know why this is important. When these micro-apps are built, they each contain a version of that library within their build artifact. If webpack is too low-level like I fear it might be, what is a common pattern people are doing to accomplish permission checking? 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. Any other thoughts along these lines? We now have bloat in our system that causes the customer to pull down more javascript than necessary. Since the alias configuration in webpack is already leveraging the paths in the tsconfig.base.json file to build out these aliases dynamically (discussed above), we can simply update that file and provide all the specific paths to each component: We can now import each one of these individual components: If we investigate our network traffic, we can see that each one of those imports gets broken out into its own individual file: This approach has several pros and cons that we discovered along the way: We recommend you choose the solution that works best based on your codebase. As an example scenario: say you have a long living host with remote components on it, and other hosts consume from it. Start by creating a new project folder with the following package.json to allow us to run our two SPAs at the same time: ModuleFederationPlugin is a high level webpack plugin that provides a very convenient way to configure module federation in your projects. Webpack 5 Module Federation aims to solve the sharing of modules in a distributed system, by shipping those critical shared pieces as macro or as micro as you would like. We now get to the most granular import statement where were importing from a specific file. Webpack 5 Module Federation aims to solve the sharing of modules in a distributed system, by shipping those critical shared pieces as macro or as micro as you would like. Regain control of your microservices by consolidating them into one or more shared processes without loosing deployment or language independence. Learn how Tenable finds new vulnerabilities and writes the software to help you find them, Breaking down the OSI model by buying pizza, Bluzelle Development Update + Launch of Developer Bounty, Solving Popular Algorithms: Balancing Strings, How to write a program that prints itself, #FeatureWeek#AYearInReviewPart 4 Q4 2019, How to Setup Kubernetes Cluster with Microk8s, Module Federation Managing Your Micro-Apps. Beta Hence, we also get Module Federation out of the box. This way once we load in App B, its first going to check and see what App A has already loaded and leverage any libraries it can. At this point, we have a lot of bloat in our system as these individual files are already contained within both import types above. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Also plugin comes along with webpack library without need of installing another dependency as well. Going forward please raise any issues in the NextJs-mf repo. My thoughts here are to build in some kind of token auth within components so even if they are exposed and someone starts an improper host using the same config, the code isn't useful without authenticating with a service first. WebAssembly 126 Apache-2.0 9 9 (3 issues need help) 11 Updated 7 hours ago As a result, they can both operate independently without bugs. This plugin essentially reproduces the functionality of Webpack's ContainerReferencePlugin and OverridablesPlugin. In this case, thats okay because the code is constrained to an actual file.
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