Web development has evolved significantly over the years, but with these advancements come complexities. Remix emerges as a framework that simplifies these complexities, providing developers with tools that align closely with web standards while delivering modern user experiences. Remix isn't just about building web applications; it's about rethinking how we approach web development by blending the old with the new.
Understanding the Basics of Remix
At its core, Remix emphasizes server-side rendering and progressive enhancement. This means that developers can create applications that are fast, resilient, and accessible right out of the box. The server-side rendering ensures that applications are SEO-friendly and performant, while progressive enhancement allows developers to layer in more complex interactions as needed.
Remix leverages nested routing, a feature that allows developers to define routes in a hierarchical structure. This not only simplifies the routing logic but also enhances the organization of the codebase. With nested routing, each route can have its own layout and data requirements, making it easier to manage complex applications.
Data Loading and Management
Data loading in Remix is streamlined through the use of loaders. Loaders run on the server, fetching the necessary data before rendering the component. This ensures that the application always has the data it needs, reducing the need for client-side state management.
One of the standout features of Remix is its ability to automatically update the UI when data changes. This is achieved through a mechanism that revalidates data whenever a mutation occurs, eliminating the need for manual state management and ensuring that the application always reflects the latest data.
Handling Mutations Effectively
In Remix, handling mutations is straightforward. The framework uses standard web forms for data submission, which align with the traditional web model. This approach not only simplifies data submission but also enhances the reliability of the application by leveraging the browser's built-in capabilities.
Remix also supports optimistic UI, a technique that allows the UI to update immediately while the actual data mutation is processed in the background. This provides a seamless user experience, making the application feel faster and more responsive.
The Role of Nested Routing
Nested routing is one of the key features of Remix that sets it apart from other frameworks. By allowing routes to be defined in a nested manner, developers can create applications that are both modular and scalable. Each route can have its own data requirements and UI components, which are automatically managed by Remix.
This approach not only simplifies the codebase but also improves the developer experience. By organizing routes in a hierarchical structure, developers can easily manage complex applications without getting bogged down by routing logic.
Progressive Enhancement and Accessibility
Remix places a strong emphasis on progressive enhancement, which means that applications are built to work in all environments, regardless of the capabilities of the user's device. This approach ensures that applications are accessible to everyone, including users with disabilities or those using older devices.
By focusing on web standards and browser capabilities, Remix allows developers to build applications that are both robust and inclusive. This commitment to accessibility is a key aspect of the framework, ensuring that all users have a positive experience.
Managing State and Interactions
State management is often one of the most challenging aspects of web development, but Remix simplifies this process by minimizing the need for client-side state management. By handling data loading and mutations on the server, Remix reduces the complexity of managing state within the application.
For interactions that require client-side state, Remix provides simple and intuitive APIs that integrate seamlessly with React's built-in capabilities. This allows developers to manage state efficiently without resorting to complex state management libraries.
Conclusion
Remix represents a shift in how we approach web development, emphasizing simplicity, performance, and accessibility. By combining server-side rendering with modern web standards, Remix offers a powerful toolset for building robust and scalable web applications. Whether you're managing complex data interactions or ensuring your application is accessible to all users, Remix provides the tools you need to succeed in today's web development landscape.
Building modern web applications is riddled with complexity And that's only if you bother to deal with the problems
Tired of wiring up onSubmit to backend APIs and making sure your client-side cache stays up-to-date? Wouldn't it be cool to be able to use the global nature of CSS to your benefit, rather than find tools or conventions to avoid or work around it? And how would you like nested layouts with intelligent and performance optimized data management that just works™?
Remix solves some of these problems, and completely eliminates the rest. You don't even have to think about server cache management or global CSS namespace clashes. It's not that Remix has APIs to avoid these problems, they simply don't exist when you're using Remix. Oh, and you don't need that huge complex graphql client when you're using Remix. They've got you covered. Ready to build faster apps faster?
At the end of this workshop, you'll know how to:
- Create Remix Routes
- Style Remix applications
- Load data in Remix loaders
- Mutate data with forms and actions
This workshop has been presented at React Summit 2022, check out the latest edition of this React Conference.
FAQ
While Remix is primarily designed for web applications, there is potential for compatibility with React Native, particularly in sharing components and possibly utilizing loaders. However, this integration is not officially supported yet and would require custom solutions or further development from the community or the Remix team.
Remix allows developers to associate individual CSS files with specific routes, enabling styles to be independent and not affect other parts of the application. This approach leverages the capabilities of the web platform, avoiding the cascade issues common in traditional CSS management. Remix supports traditional CSS, Tailwind CSS, and plans to improve support for CSS modules and Vanilla Extract.
Integrating Remix with existing applications like those built with Next.js involves setting up a proxy, such as Express or Nginx, to route specific paths to Remix or the existing system. This approach allows for gradual migration and coexistence of both frameworks during the transition period.
The Remix team is exploring various monetization strategies including offering services around Remix similar to what Laravel does, building products akin to what Rails has with Basecamp, or potentially partnering with larger companies through acquisitions or collaborations.
Remix provides robust error handling mechanisms through error boundaries and catch boundaries, which can be used to render fallback UI components when data fetching or other operations fail. These boundaries ensure that errors are managed gracefully, providing a better user experience and maintaining application stability.
Remix automatically re-fetches all page data upon successful mutations, eliminating the need for manual state management related to data synchronization. This model simplifies development by reducing the complexity associated with keeping the UI and server state consistent. Developers can focus more on features rather than state management intricacies.
Remix is a web development framework that focuses on improving the bridge between the client and server, effectively handling the hardest part of web development which is the network chasm. It leverages web standards for routing, data loading, and actions, allowing developers to build more with less while ensuring an optimized user experience.
Remix simplifies state management and data loading in web applications, combining modern web development with the simplicity of managing state in the backend. It supports nested routing and provides a convenient way to associate parent and child components based on URL segments. Remix handles data fetching, mutations, and error states automatically. It offers flexibility in accessing loader data and allows for multiple instances of loader data in a component. Remix also provides seamless handling of form updates, error handling, and redirects.
Welcome everyone. We're going to talk about Remix and cover topics like nested routing, data loading, dynamic parameters, mutations, and progressive enhancement. In Exercise 1, we'll add a link to the post route in the Indy Stack. We'll go through the README and stop at loading data. Then, we'll create a post index route in our routes directory. TypeScript is recommended for building web applications with Remix, but it's not mandatory. Let's get started!
2. Remix and React Router Integration
So there it is posts. We have this link to the posts route and then the posts is a file under routes called, with a default export for what should be rendered when we're on that route. This would be with the convention that we currently have for Remix for the file structure, you can just have a posts.TSX. Remix uses React router remix came from the creators of React router. Remix is just using React router here. Remix is focused on web standards and modern web app UX. Remix takes the things that worked really well in the web 10 years ago, and then Remixes the things that work really well in the modern web. The thing that bothers people who have been involved in the web for a long time about the modern web is how hard it is to build a website these days. What Remix manages to do is, the thing that we liked about the older way of building websites is you didn't have to worry about managing state in the browser.
3. Simplifying State Management with Remix
Remix simplifies state management in web applications by providing a mental model similar to the old days when state lived in the database. It combines the capabilities of modern web development with the simplicity of managing state in the backend. Remix eliminates the need for extensive UI state management code and allows for a full SPA experience. It also supports UI nested routing, providing a convenient way to associate parent and child components based on URL segments. Remix handles data loading and state management automatically, simplifying the development process and improving the user experience. Overall, Remix simplifies the mental model of web development and reduces the complexity of managing state in UI applications.
4. Nested Routing and Data Rendering
The parent component is responsible for rendering its data, such as the invoice list items, overdue amount, and due soon amount. The sales route and the parent layout route handle rendering links and the outlet. With Remix, teams working on different parts of an app, such as the header and footer, don't need to communicate about data rendering. By loading data next to the component being rendered, Remix provides a snappy user experience without bouncy loading states. This eliminates the need for excessive spinners and improves the overall user experience.
5. Remix Capabilities and Data Management
Remix can do a lot of awesome things. It handles bundling, compiling, and data fetching. It prefetches data based on user navigation, making it fast. Data mutations are simple with a form and action in the same file. Remix manages data, form resubmissions, race conditions, and error states.
QnA
Scalability, WebSockets, and Data Sharing in Remix
My team is currently using Next.js and we're discussing how to render and avoid server costs. Remix can achieve similar performance characteristics as SSG by setting up a CDN and using cache headers. It also provides levers to handle different use cases and needs. Remix supports WebSockets and server-side events, making it suitable for real-time multi-user scenarios. The port number corresponds to the exercise, and data can be shared between routes using the use matches hook.
Data Storage and Loader Function
Remix simplifies data management for UI, but storage is outside its scope. You can use Remix to fetch data from a server using a loader. Remix can also handle resource routes for REST or GraphQL APIs. Building a web and mobile app in Remix with co-location is a possibility. The loader function runs on the server, allowing for secure operations and heavy libraries. Console logs in the loader only show up in the terminal, while logs in the component appear in both the terminal and the browser.
Data Loading and Response Handling
We're going to handle data loading for our posts. We'll use a special function called json from Remix Run node to create a new response with json or json-stringified format, headers application json, and status 200. This function simplifies the process of creating a json response. Remix normalizes the request response on any platform to the Web Fetch API, allowing you to work with the web platform without worrying about deployment specifics.
Fetching and Rendering Data
We send our JSON with the post and access it using the use loader data hook. The posts are retrieved by destructuring the data. The server render and client-side transition both work seamlessly, with logs appearing in the appropriate environments. During a client-side transition, there are no logs in the terminal as the component is already hydrated on the client side.
Loader Data and Use Loader Data
We define the JSON that should come back from the loader as a convention. However, using a generic for use loader data is not recommended. TypeScript cannot verify that the data received matches the generic passed in. This is a TypeScript-specific issue. We are working on improving this in the future. For now, it's important not to unknowingly deceive yourself. Remix ensures that the loader data for a route is loaded before transitioning to that page. There is no asynchronous loading happening at the point of using use loader data. You don't need to worry about a loading state in this case. The loader is not a special keyword, but it is necessary for use loader data to work. When the user transitions, Remix recognizes the loader for that route and makes a fetch request. Remix handles the fetch request and passes the response to the UI.
Loader Data and State Management
Remix provides flexibility in accessing loader data and allows for multiple instances of loader data in a component. The useFetcher hook can be used to load data on the client only. Parent loader data cannot be accessed in the loader of the child, but it can be accessed in the component. Future versions of Remix may introduce an API for accessing parent loader data. State management in Remix covers everything and is easier to use than Redux. However, Remix state management focuses on persisted state, so local UI state that is not persisted will not be managed by Remix.
Using Remix and Dynamic Parameters
The latest version of React router supports using Remix. Redux may still be useful for highly pluggable apps. The JSON method in the loader has implications for stringifying objects. Testing Remix apps is important, and the stacks come pre-configured with testing tools. Applying structure checks or schema validation to loaders is not allowed due to the build process. Dynamic parameters in Remix routes are straightforward to implement.
Params, Database, and Next Exercise
To get access to params in your component, use use params from RemixRun React. TypeScript cannot know if the slug will be defined, so we use the invariant function to check and provide a specific error message. We also moved the database connection to a separate file using Prisma to access data in the SQLite database. We retrieve posts using Prisma's find many and find unique functions. If the post doesn't exist, we throw an error. If it does, we compile the Markdown into HTML using Marked and render it. The next exercise covers nested routing and mutations, which are the most important topics. Make sure you're in the right directory and run node dev exercise 04 on port 4004. We won't automate the params check in loaders because it would be difficult to teach TypeScript our convention. We're adding an admin section to the app, and there will be a link to it.
Creating Admin Section with Nested Routing
We create an admin section with nested routing in Remix. The admin route handles all admin-related routes and subroutes. We render the outlet for the child routes. When there are no child segments, the index route is shown. Clicking on 'create a new post' displays a 404 error because the new.tsx file is missing. We create the new.tsx file and render the 'new post' content. Multiple nested routes can be used without blocking each other.
Handling Post Requests and Creating Posts
On exercise 5, we continue from the previous part and discuss handling post requests and creating posts in the database. We use the form data API to access the form data for the request and create a new post with the provided title and Markdown. We then redirect to the admin page. Remix allows us to easily handle post requests and perform database operations.
Handling Post Creation and Data Updates
We can redirect users to the finished page after creating a post. Remix handles the redirect by requesting data for the new page and then sending the user there. This eliminates the need for manual data updates and simplifies state management. Remix automatically revalidates data on mutations, ensuring the latest information is displayed.
Complex Controls and State Management
For more complex controls like a radio group that requires state for styling, useState can be used in Remix. However, Remix eliminates the challenges of managing application state in React apps, such as race conditions and complex state updates. In the future, with has in CSS, even more complex controls may not require state.
Handling Form Updates and Error Handling
To update the value of a form, such as radio buttons or checkboxes, you can use the useState hook in Remix. By setting the input type to hidden and providing a name and value, you can serialize the option along with other form data. Routes and templates in Remix are similar, but Remix offers more flexibility as it allows you to use JavaScript functions as components. To load additional data based on a selection in a nested dropdown, you can use the useFetcher hook in Remix. This hook allows you to make a post request to a specific route, handle the request in an action, and update the options based on the response data. Error handling in Remix can be done by sending an error message from the server to the client and displaying it to the user.
Handling Errors and Redirects
When handling errors in Remix, you have the option to use an error boundary component to catch and handle unexpected errors. The error boundary can be nested within the component or route where the error might occur. By adding the error boundary, you can prevent the error from affecting the entire application. Redirecting after a mutation is not necessary for the UI to be updated. When a successful mutation occurs, Remix automatically refetches all the data on the page. This ensures that the UI remains up to date without the need for manual updates. If a redirect is not performed after a mutation, the browser may prompt the user to resubmit the form if they navigate back to the page. This behavior can be avoided by using a redirect after a successful mutation.
Post Requests, Error Handling, and JSON Data
When doing a post request, it is recommended to redirect to a get request to avoid multiple get requests for each mutation. Usefetcher can be used for this purpose, as it does not perform a transition. Error handling can be achieved using catch boundaries, which render fallback components when data loading fails. When nested UI is used, only one fallback will be rendered on the page. It is possible to render a fallback with a higher scope by designing the catch boundary to render the entire section of the UI. The progressive enhancement feature in Remix can be explored independently. JSON data can be posted to an API endpoint instead of URL encoded data by using a resource route and specifying request.json instead of request.formdata.
Handling Multiple Forms and Migration from Next.js
Two different forms on the same route can be disambiguated based on a field of the form. Migration from Next.js to Remix can be done gradually using Express or Nginx to route to different apps. UseFetcher in Remix caches data using cache headers instead of in-memory caching. Remix may be compatible with React Native, allowing for the use of the Loader from React Native. The demo of the to-do app working with disabled JS and a 3G connection is impressive and should be featured on the landing page.
Demo, Stacks, Caching, and Future Plans
The demo is awesome. The code is all in one file, around 600 lines, including frontend and backend code. Remix simplifies development, reduces lines of code, and improves performance. Remix Stacks offers pre-configured scaffolds with tooling and user authentication. The community has created numerous stacks. Caching in Remix is use case dependent, and there is no API to clear browser cache. Remix focuses on the center of the stack, bridging the gap between client and server. It may expand to include more built-in support for database models. Prisma is already a great tool for database access. Reach UI is part of Remix and may be further developed. The future may include additional features like a mailer and queuing system.
Remix Funding and CSS Styling
Remix has plans to make money through services around Remix or by building a product. They also have the option of getting acquired. Currently, they have sufficient funding for at least a year or two. Remix provides flexibility in loading CSS for specific routes and components, allowing for independent styling. It supports individual CSS files for each route, avoiding the issues of the Cascade. Tailwind is recommended for styling apps with Remix. CSS modules and Vanilla Extract are not currently supported, but there are plans to add support in the future. CSS-in-JS is discouraged in favor of Tailwind. The only deprecated TS type in Remix is the unused generic for useLoaderData.
Challenges and the Transition Manager
The transition manager in Remix is a major challenge and a key component that handles cancellation requests, resubmissions, and revalidation logic. It is a complex and well-tested feature that allows for smooth transitions and efficient data retrieval. It works like magic, canceling unnecessary requests and providing the desired response. The transition manager is a crucial part of Remix's functionality.
ReactJS is wildly popular and thus wildly supported. TypeScript is increasingly popular, and thus increasingly supported.
The two together? Not as much. Given that they both change quickly, it's hard to find accurate learning materials.
React+TypeScript, with JetBrains IDEs? That three-part combination is the topic of this series. We'll show a little about a lot. Meaning, the key steps to getting productive, in the IDE, for React projects using TypeScript. Along the way we'll show test-driven development and emphasize tips-and-tricks in the IDE.
In this workshop, you'll learn how to build your first full stack dapp on the Ethereum blockchain, reading and writing data to the network, and connecting a front end application to the contract you've deployed. By the end of the workshop, you'll understand how to set up a full stack development environment, run a local node, and interact with any smart contract using React, HardHat, and Ethers.js.
The Vue3 has been released in mid-2020. Besides many improvements and optimizations, the main feature of Vue3 brings is the Composition API – a new way to write and reuse reactive code. Let's learn more about how to use Composition API efficiently.
Besides core Vue3 features we'll explain examples of how to use popular libraries with Vue3.
Table of contents: - Introduction to Vue3 - Composition API - Core libraries - Vue3 ecosystem
Prerequisites: IDE of choice (Inellij or VSC) installed Nodejs + NPM
Developing Dynamic Blogs with SvelteKit & Storyblok: A Hands-on Workshop
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This SvelteKit workshop explores the integration of 3rd party services, such as Storyblok, in a SvelteKit project. Participants will learn how to create a SvelteKit project, leverage Svelte components, and connect to external APIs. The workshop covers important concepts including SSR, CSR, static site generation, and deploying the application using adapters. By the end of the workshop, attendees will have a solid understanding of building SvelteKit applications with API integrations and be prepared for deployment.
Build Modern Applications Using GraphQL and Javascript
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Come and learn how you can supercharge your modern and secure applications using GraphQL and Javascript. In this workshop we will build a GraphQL API and we will demonstrate the benefits of the query language for APIs and what use cases that are fit for it. Basic Javascript knowledge required.
The modern web would be different without rich client-side applications supported by powerful frameworks: React, Angular, Vue, Lit, and many others. These frameworks rely on client-side JavaScript, which is their core. However, there are other approaches to rendering. One of them (quite old, by the way) is server-side rendering entirely without JavaScript. Let's find out if this is a good idea and how Remix can help us with it? Prerequisites- Good understanding of JavaScript or TypeScript- It would help to have experience with React, Redux, Node.js and writing FrontEnd and BackEnd applications- Preinstall Node.js, npm- We prefer to use VSCode, but also cloud IDEs such as codesandbox (other IDEs are also ok)
Remix is a web framework built on React Router that focuses on web fundamentals, accessibility, performance, and flexibility. It delivers real HTML and SEO benefits, and allows for automatic updating of meta tags and styles. It provides features like login functionality, session management, and error handling. Remix is a server-rendered framework that can enhance sites with JavaScript but doesn't require it for basic functionality. It aims to create quality HTML-driven documents and is flexible for use with different web technologies and stacks.
Kent C. Dodds discusses the concept of problem elimination rather than just problem-solving. He introduces the idea of a problem tree and the importance of avoiding creating solutions prematurely. Kent uses examples like Tesla's electric engine and Remix framework to illustrate the benefits of problem elimination. He emphasizes the value of trade-offs and taking the easier path, as well as the need to constantly re-evaluate and change approaches to eliminate problems.
This talk discusses the usage of Microfrontends in Remix and introduces the Tiny Frontend library. Kazoo, a used car buying platform, follows a domain-driven design approach and encountered issues with granular slicing. Tiny Frontend aims to solve the slicing problem and promotes type safety and compatibility of shared dependencies. The speaker demonstrates how Tiny Frontend works with server-side rendering and how Remix can consume and update components without redeploying the app. The talk also explores the usage of micro frontends and the future support for Webpack Module Federation in Remix.
State management in React is a highly discussed topic with many libraries and solutions. Jotai is a new library based on atoms, which represent pieces of state. Atoms in Jotai are used to define state without holding values and can be used for global, semi-global, or local states. Jotai atoms are reusable definitions that are independent from React and can be used without React in an experimental library called Jotajsx.
RemixConf EU discussed full stack components and their benefits, such as marrying the backend and UI in the same file. The talk demonstrated the implementation of a combo box with search functionality using Remix and the Downshift library. It also highlighted the ease of creating resource routes in Remix and the importance of code organization and maintainability in full stack components. The speaker expressed gratitude towards the audience and discussed the future of Remix, including its acquisition by Shopify and the potential for collaboration with Hydrogen.
Debugging JavaScript is a crucial skill that is often overlooked in the industry. It is important to understand the problem, reproduce the issue, and identify the root cause. Having a variety of debugging tools and techniques, such as console methods and graphical debuggers, is beneficial. Replay is a time-traveling debugger for JavaScript that allows users to record and inspect bugs. It works with Redux, plain React, and even minified code with the help of source maps.
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