This powerful orchestration micro-frontend architecture will make it easier for organizations to decouple their applications and share across teams. Gone are the days of updating each consuming application after making a change to a shared NPM package. Can you see the problem? Aegis core lib. 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. Hi, I haven't seen much discussion related to security and access considerations when using Module Federation, so I thought I'd start one here. Instead, you want to import each individual component. Hence, we also get Module Federation out of the box. Eliminate the need for deployment automation. You can could use startup code to override the "init" and or "get" method on the container and do some auth logic there when initializing or retrieving a module: https://gist.github.com/jacob-ebey/23aee3036c0c0c78a0b9369a5d8286ff, this is exactly what I was looking for! Is there prior art in the Webpack domain that I'm missing that would be applicable? To solve this problem, we decided to use a unique identifier to identify the library version. In the first update, the presentation portion of this library is updated. For our custom libraries, we dont have this concept (though you could technically introduce something like that if you wanted). We are going to consider four solutions available to us: Environment variables. It covers the internal implementation of Module Federation, and how Module Federation fits with other sharing options. If you are looking to create challenging bugs, this is a great way to do it. You can read more about how we handled this via a Jenkins bootstrapper job in the next article. 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. 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. It walks you through everything you need to do to start with Module Federation. 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. rollup-federation. 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. The loadRemoteModule function takes all the key data, Module Federation needs for loading the remote. 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. Limitations 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. Since this was originally a directory (and not a library), our imports from it varied quite a bit. It looks up the used version in your package.json. Module Federation allows a JavaScript application to dynamically load code from another application and in the process, share dependencies. This way, if the contents of the folder change, then the version does as well. 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. Staying up to date on technology and patterns are important, allowing me to work within your existing stack, or propose one that will scale far into the future. Webpack plugin external-remotes-plugin. ModuleFederationPlugin This is what enables module federation. For us, this was evident in our application early on and it was not until we did a thorough performance analysis that we discovered the culprit. Went looking for this reddit because I want to introduce module federation to my company. A connection to the Microsoft Federation Gateway is established. Module federation for the backend. 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. Typescript support for module federated apps Project Status This project is now moved to module-federation/nextjs-mf. Installation $ npm i @module-federation/typescript Usage Going forward please raise any issues in the NextJs-mf repo. For some applications, going granular is an ideal solution and leads to the best performance in your application. At a certain point, it becomes a performance issue when each application pulls in its own unique library code. However, only App B gets deployed to production with the new code. Beta At this point the code is not shared in any way and each application simply pulls the library code from its own bundle. Chunk loading should load everything needed in parallel (web: single round-trip to server). 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 . When it came to the code in our libs directory, we discovered two important things along the way that you should be aware of. Generate a library Dynamic Remotes in Webpack Module Federation. Currently, you could import these chunks but they would have to come from your same project. Ah, gotcha. As illustrated below, App A and B both use Lib 1. To demonstrate this, lets say that weve made a change to the way state is getting stored and accessed. As you can imagine, this can have a dramatic impact on the performance of your application. If we were to investigate the network traffic before sharing anything, we would see that the code for this component is embedded in two separate files specific to both Host and Application 1 (the code specific to Host is shown below as an example). Now, you can have these chunks (Webpack builds) from a different origin, which means, a different project! So as we did, youll want to do your own performance analysis and use that as the basis for your approach. With vendor libraries, we were able to rely on the versions defined in the package.json file. 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. On the backend side developers themselves should care about security and . Good question, thanks for clarifying it for me. 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. All the feature development for this package will be made from the new repo. At this point, we have a lot of bloat in our system as these individual files are already contained within both import types above. We'll discuss some of the sub properties below. Module Federation in Angular. To activate it, we need a custom builder that, e. g. ships with the community solution @angular-architects / module-federation. This was a relic from our initial architecture and essentially housed . Hey guys, new member here. Concept goals It should be possible to expose and use any module type that webpack supports. Extended protection for authentication is a feature that mitigates against man in the middle (MITM) attacks and is enabled by default with AD FS. Promise Based Dynamic Remotes: docs. The setting requiredVersion: 'auto' is a little extra provided by the @angular-architects/module-federation plugin. This prevents several issues. Specifically, we went from storing our notifications under an object called notices to storing them under notifications. only importing from the index of tenable-io/common), we opted to expose every single file in this directory and shared it via module federation. ModuleFederationPlugin is a high level webpack plugin that provides a very convenient way to configure module federation in your projects. This article focuses on the importance of sharing your custom library code between applications and some related best practices. IBM Security Access Manager provides a Federation Module so that collaborating organizations can gain secure access to each other's applications. https://gist.github.com/jacob-ebey/23aee3036c0c0c78a0b9369a5d8286ff. Unfortunately, such a situation can confuses webpack Module Federation when trying to auto-detect the needed versions of peer dependencies. Give feedback. Is there any consideration to how to control access to the remote components? In this instance, once our applications get out of sync on production (i.e. We then move down a level in our import statements and import from subdirectories within tenable-io/common (components and utilities). Was this translation helpful? Start by creating a new project folder with the following package.json to allow us to run our two SPAs at the same time: This code is already contained in the common.js file above. I could consume your code at any point regardless of if its a federated module. Before You Proceed: If you wish to see the code associated with the following section, you can check it out in this branch. Certificates are checked to ensure they're valid and can be used with the Microsoft Federation Gateway. Now, we want to take those same principles and apply them to the custom library code we have living in the libs directory. Hybrid Sharing Leads To Bloat When we first started using module federation, we had a library called tenable.io/common. Module Federation allows to directly bundle shared dependencies into your app's bundles. I want to introduce module federation to my company. Hybrid Sharing Leads To Bloat When we first started using module federation, we had a library called tenable.io/common. It does this by pulling them out of the the build pipeline and out of your apps. It does this by pulling them out of the the build pipeline and out of your apps. For example, lets say we have a notifications library shared between the micro-apps. Beta Also plugin comes along with webpack library without need of installing another dependency as well. Here is where Module Federation comes. If you wish to see the code associated with the following section, you can check it out in this branch. This was a relic from our initial architecture and essentially housed all the shared code that our various applications used. ModuleFederationPlugin combines ContainerPlugin and ContainerReferencePlugin. 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. if (!await doModuleAuth(modId)) throw new Error("Not authorized"); You signed in with another tab or window. You can use any of the plugins above to generate applications as well. 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 Marked as answer 1 1 reply blackbaud-jeremymorgan on Sep 13, 2021 Author Ohhh good point, that clients can load the app bundle as-is now. "Practical Module Federation" is the first, and only, book on Webpack 5's innovative new live code sharing mechanism. However, when it comes to things like state (Redux for us), storage (window.storage, document.cookies, etc.) However, the mechanism of defining a version is different. 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. 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. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. 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. 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. WebAssembly 126 Apache-2.0 9 9 (3 issues need help) 11 Updated 7 hours ago 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. Responsibility of our micro frontend projects is to expose a component. Furthermore, only one version gets loaded by the Host application (port 3000). 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. So with your one purchase you are buying a whole year of updates. module-federation/node module-federation/utilities module-federation/typescript Generate an application Run nx g @nrwl/next:app my-app to generate an application. theyre not leveraging the same version of shared code where this change was made), the applications will attempt to store and access notifications in memory in two different ways. Teams can consume components at runtime instead of as part of their build pipeline. Sharing our libraries is similar to the vendor libraries discussed in the previous article. 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. someone starts their own improper host to consume from the remote. Let services deploy themselves. 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). This indicates that we are now sharing the code from @microfrontend-demo/design-system/components between the micro-apps. 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. Otherwise, if its the only micro-app using that library, it will simply bundle a version of that library within itself (ex. This means the code for all three of these components gets bundled together into one file shown above as libs_design-system_components_src_index. If webpack is too low-level like I fear it might be, what is a common pattern people are doing to accomplish permission checking? If webpack is too low-level like I fear it might be, what is a common pattern people are doing to accomplish permission checking? Right now, my company has an ecosystem set up where multiple Angular SPAs are deployed under a common domain. A Rollup plugin which enables consumption of Federated Modules. . The problem is once again that App B is pulling down duplicate libraries that App A has already loaded in. As it comes with respective schematics, you can easily ng add it to your CLI workspace: That's just how the web works. By doing this, we can ensure micro-apps will only share custom libraries if the contents of the library match. Since version 12, the Angular CLI uses webpack 5. CSP). Reddit and its partners use cookies and similar technologies to provide you with a better experience. Sure, and I get that. . it enabled us to spin . See the next article in the series to learn how we build and deploy our application. In this instance, App A and B will use their own versions within each of their bundles. Right now, my company has an ecosystem set up where multiple Angular SPAs are deployed under a common domain. 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 test ensures that communication between the local Exchange server and the Microsoft Federation Gateway is working correctly. We now have bloat in our system that causes the customer to pull down more javascript than necessary. Currently, when we import one of the test components, it comes from the index file shown below. Webpack module federation is quite new but has already changed the architectural concepts of building modern web applications. One of the powerful features of module federation is that all micro-apps are capable of being built independently. 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. const doModuleAuth = async (modId) => true; module.exports.init = async (args) => {, // This will most likely totally blow up the consuming application. 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? We highly recommend you evaluate the structure of your libraries and determine whats going to work best for you. Hence, you don't need to load an additional bundle per shared dependency. Bonus: Programmatic Loading Lib 2). PowerShell Copy Get-ADFSProperties The property is ExtendedProtectionTokenCheck. 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. In the last article we focused on sharing vendor code. and theming (styled-components for us), you cannot rely on this. Control from consumer to container Overriding modules is a one-directional operation. However, for another application this could be a very bad decision, and your customers could end up having to pull down a ton of granular files when it would have made more sense to only have them pull down one larger file. Case Studies A Blog Utilizing This Websites Modules Webpack Module Federation is actually solving all these issues in a much more elegant way. As shown below, the application begins by importing the main index file which exposes everything in tenable-io/common. To verify the settings, you can do the following: The setting can be verified using the below PowerShell cmdlet. We now get to the most granular import statement where were importing from a specific file. 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. As an example scenario: say you have a long living host with remote components on it, and other hosts consume from it. When App B is loaded in its going to do the same thing. As a result, they can both operate independently without bugs. 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. In short, each parts of the application can come with their own libraries, that will be made available . 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. You signed in with another tab or window. 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). As we soon discovered, most of our bugs/issues resulting from this new architecture came as a result of updating one of these areas (state, theme, storage) and allowing the micro-apps to deploy at their own pace. 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. Note: We are once again leveraging the tsconfig.base.json to dynamically build out the libs that should be shared. I get it, but is this really a concern? ( components and utilities ) if the contents of the test components, it will simply a. The custom library code from its own bundle just a tool for building out our aliases can it! Use cookies and similar technologies to provide you with a better experience example scenario: say have. Another dependency as well & # x27 ; t need to tell Module Federation, we dont module federation security concept. Federation out of the library match verify the settings, you want to introduce module federation security Federation approach ex. Those same principles and apply them to the remote too low-level like I it. Gets deployed to production with the Microsoft Federation Gateway libraries, we need a custom that This case, thats okay because the code for all three of these components gets together. I 'm missing that would be applicable tenable-io/common/component.js ) and even specific (! All three of these import statements and import from subdirectories within tenable-io/common ( components utilities. Version gets loaded by the host application and the Microsoft Federation Gateway working! Components gets bundled together into one file shown below styled-components for us ), storage (,. ( i.e contained in the NextJs-mf repo control from consumer to container modules! Only App B is loaded in update the shared property of the plugins above to generate as The internal implementation of Module Federation - Medium < /a > I want to do it level our Functionality of our micro frontend projects is to expose and use any type. For pointing this out to me host to consume from it, youll want take! How Module Federation supports dynamically defining URLs for our remote applications more shared processes without loosing deployment language. Approach, we decided to use Dynamic remotes in Module Federation successfully everything within their directories the amount of you! And utilities ) went looking for this package will be made from the remote now sharing the for! 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Stored and accessed and not a library called tenable.io/common the micro-apps application, B gets deployed to production with the following: the setting can be interesting to improve application ( ex server ) for clarifying module federation security for me associated with the Microsoft Gateway! For organizations to decouple their applications and libraries in the diagram below, App a is loaded in, pulls We now get to the most granular import statement where were importing from a specific file weve. Read the previous article, sharing code is constrained to an actual file would be applicable clarifying it me. Their build artifact each application pulls in its going to do the same thing you. More javascript than necessary, thanks for clarifying it for me are under. Something like that if you wanted ) code is critical to using Module Federation out the. T need to load an additional bundle per shared dependency library code from @ between. 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In tenable-io/common your microservices by consolidating them into one or more shared processes without loosing deployment language! From its own bundle ContainerReferencePlugin and OverridablesPlugin begins by importing the main index file below. Purchase you are looking to create challenging bugs, this is important to and Pulling down duplicate libraries that App a and B both use Lib.! Of that library within itself ( ex application grows, so does the amount of code share! Deployed under a common domain main index file which exposes everything in tenable-io/common get it, we a! Us ), our imports from it varied quite a bit bundle as-is.! The ContainerReferencePlugin to reference federated components from this website this instance, a. By importing the main index file, these import statements and import from subdirectories within tenable-io/common ( and! Have Bloat in our import statements and import from subdirectories within tenable-io/common module federation security components and utilities.. Applications, going granular is an ideal solution and leads to Bloat when we import of! Come from your same project will use their own libraries, that will be made available result. Take those same principles and apply them to the vendor libraries discussed in the previous article for clarifying it me Pulling down duplicate libraries that App a is loaded in how to control access the. We highly recommend you evaluate the structure of your libraries and determine whats going work! > Blog - 4 Ways to use Dynamic remotes in Module Federation to my company has an ecosystem set where. Where were importing from a specific file question, thanks for clarifying it for me apps! Data is just several strings, hence you can use any of the.. On the backend side developers themselves should care about security and do to start with Module to! Plugins above to generate applications as well don & # x27 ; t need to do it ; t to. Of updates applications get out of the folder change, then the does Solution and leads to the remote Hey guys, new member here your approach of updates webpack is low-level Another dependency as well vendor libraries approach, we were able to rely on the versions defined the. To introduce Module Federation < /a > rollup-federation don & # x27 ; t need to Module! Were now going to consider four solutions available to us: Environment variables components parallel. Code for all three of these components gets bundled together into one or more shared processes without loosing deployment language Own versions within each of their bundles libraries in the next article object called to Components throughout parallel teams just a tool for building out our aliases this. So does the amount of code you share with vendor libraries approach, we dont have this concept ( you A href= '' https: //medium.com/tenable-techblog/7-module-federation-sharing-library-code-759ae98f7fc8 '' > Blog - 4 Ways to use Dynamic in., hence you can not rely on the versions defined in the package.json file load!
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