HTTP vs. Server-side Cache in Remix by sergiodxa

When you build a web application, you may reach a point where some performance problems could be solved by a...

Test Remix loaders and actions by sergiodxa

If you are using Remix, most of your application code will live in the loaders and actions instead of React compo...

E2E test Remix with Vitest and Puppeteer by sergiodxa

Vitest is a testing framework, similar to Jest, but way faster, built on top of Vite, which uses esbuil...

Use Remix with socket.io by sergiodxa

If you want to add real-time capabilities to your Remix app without using an external service, the easiest way is proba...

The useMatches hook in Remix by sergiodxa

If you use Remix, there's a hook that you can use called useMatches, this hook is a way to access some internal d...

Loader vs Route Cache Headers in Remix by sergiodxa

Document Request So, let's say you have a route at /my-super-route, and there you have a loader fun...

How to Upload Images in a Remix Application by sergiodxa

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Progressively enhance the useFetcher hook in Remix by sergiodxa

If you're using multiple forms on the same route, you may use the useFetcher hook, which also...

How to Redirect with Search Param in Remix by sergiodxa

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Validating Remix forms with Constraints API by sergiodxa

The Constraints API is a browser API that has been available since the times of IE10, yep, that old....

Avoid waterfalls of queries in Remix loaders by sergiodxa

Remix does a fantastic job of avoiding waterfalls everywhere. It preloads assets. It downloads JS a...

Use Server-Sent Events with Remix by sergiodxa

Using Server-Sent Events (SSE) you can keep a connection between a browser (client) and an HTTP server open an...

Dependency injection in Remix loaders and actions by sergiodxa

Dependency Injection is a way our function or class can receieve from the caller the instancie...

How to Create a reusable Form component in Remix by sergiodxa

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Generate a PDF in Remix with Resource Routes by sergiodxa

Remix has a feature called Resource Routes which let you create endpoints returning anything. Usin...

Parse Markdown with Markdoc in Remix by sergiodxa

Markdoc is this new Markdown parser by Stripe, and it's a simple to use yet extendable library we can use i...

Using Service Workers with Remix by sergiodxa

A Remix app is by default fast, the framework optimize a lot how the required resources for a page are loaded s...

Adding CSRF protection to Remix by sergiodxa

While you may not need CSRF if your cookies have the SameSite: Lax configured, it may still be a good idea to ...

Localizing Remix apps with i18next by sergiodxa

There's a lot if libraries to implement i18n in JS and React, and i18next is one of the most popular out ther...

Persist inputs after a form submit in Remix by sergiodxa

Let's say you have a form with a few inputs. You want to persist the inputs' values after submitting...

Bubble up data on Remix routes by sergiodxa

React introduced a one-way data flow where a parent component has some data (state) and passes it to the children...

Throwing vs. Returning responses in Remix by sergiodxa

When you code a loader/action (we'll call them data functions from now) in Remix, you can either retur...

How to Persist the user locale using cookies with Remix & i18next by sergiodxa

Multiple forms per route in Remix by sergiodxa

Suppose you have a complex enough Remix application. In that case, you may have reached the point where a sing...

Use NProgress in a Remix app by sergiodxa

Remix's philosophy is to kill all the spinner! This is amazing, but sometimes it's not possible. Connections may be...

How to Get the absolute URL in Remix's MetaFunction by sergiodxa

Use `process.env` client-side with Remix by sergiodxa

Use process.env client-side with Remix The process.env thing is a Node.js-only feature that many front-end developers adopted as something t...

Add returnTo behavior to Remix Auth by sergiodxa

If you're using Remix Auth, you may want to add support to return the user to where it was before redirectin...

Use ETags in Remix by sergiodxa

ETags are strings used to identify a particular version of a resource. If the URL is the identity of a resource the ETag is t...

How to Use a CDN for your static assets in Remix by sergiodxa

Route protection in Remix with Policies by sergiodxa

A Policy is a design pattern used to define authorization rules that can be re-used easily across an app...

Run Next and Remix on the same server by sergiodxa

If you want to migrate a Next app to Remix, you may be tempted to do a complete migration. Still, if your ...

How to Defer a Fetch response in Remix by sergiodxa

Add additional data before submitting on Remix by sergiodxa

The Remix approach to submitting forms is to replace the <form> tag with their <Form> compone...

How to Use React Portal in Remix by sergiodxa

How to Call an action from a loader in Remix by sergiodxa

Server-Side authentication with Auth0 in Remix by sergiodxa

While this works, I recommend you to don't do all of this yourself, instead use Remix Auth with...

Use Remix as a SPA only by sergiodxa

Remix always does SSR on document requests. Then it works as an MPA until JS loads and React hydrates your app. At that ...

Lazy-load React components in Remix by sergiodxa

Suppose we want to create a timeline component that lists different events. Each event type has a unique com...

How to Use TANStack Query to share data between Remix loaders by sergiodxa

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Redirect to the original URL inside a Remix action by sergiodxa

Let's say the user is currently at the URL /:username, and there's a button to follow that ...

Fix double data request when prefetching in Remix by sergiodxa

Suppose you rendered a <Link prefetch="intent" /> component in your UI with the idea of pref...

Optional route segments with Remix by sergiodxa

Let's say we have a URL structure like this: /:category/products /products Both routes need to work...

How to Build a simple login and logout with Remix by sergiodxa

How to Expose Remix Routes as API Endpoints by sergiodxa

If you're building a Remix web app, and then you decide to expose an API from that app, you may be tempted to try to reuse the same routes …

Automatic Revalidation in Remix by sergiodxa

If you have used SWR or React Query, you may be used to a feature both libraries have called automatic revalidat...

How to Find and remove unused code with Knip by sergiodxa

How to Validate Form in Remix with clientAction by sergiodxa

How to Build an app with Remix and Bun by sergiodxa

How to Add i18n to a Remix Vite app by sergiodxa

On-Demand Hydration in Remix by sergiodxa

Remix makes it really easy to don't send JS to the browser. It even has a guide on how to let routes statically def...

Use Fathom with Remix by sergiodxa

If you want to use Fathom for your analytics and use Remix to build your app, you can configure it to work quite quickly. ...

Downgrade to MPA if users prefer reduced data in Remix by sergiodxa

Users can enable a setting in their devices to indicate to websites that they prefer redu...

Jest Matchers for Remix responses by sergiodxa

When testing the logic of an action in Remix, or any function returning a Response, even a Fetch API Response,...

Share session and cookies between Next and Remix by sergiodxa

I have been migrating a Next.js app to Remix for a few months. I already wrote how to run them ...

How to Prefetch data for Remix Fetcher usage by sergiodxa

If you're using Remix, you can ask it to prefetch the data of a new route using `<Link prefetch`> prop, but if you need to use `fetcher.loa…

How to Keep Your Loader Data Fresh in Remix by sergiodxa

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How to Create a CRUD with Remix by sergiodxa

When to use Route Modal in React Router by sergiodxa

How to Abort Async Calls Inside Remix Loaders and Actions by sergiodxa

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How to Create multiple top-level layouts in Remix by sergiodxa

Group related routes together in Remix by sergiodxa

Next.js released its new nested routes feature yesterday (Friday, 9th September). One of the things they ...

Sending data from layout to leaf routes in Remix by sergiodxa

Hey! This is outdated, Remix Outlet component now supports sending data to leaf routes using ...

How to Access the Search Params of a Request in Remix by sergiodxa

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Using TailwindCSS with Remix by sergiodxa

Let's see how to do the setup of TailwindCSS for a project using Remix. Install Tailwind The first thing we ne...

How to Prevent the Remix loader to run after document request by sergiodxa

How to Pass cookies from a Remix loader to an external API by sergiodxa

Using Form Objects inside Remix actions by sergiodxa

In Remix, each route can export a single action function used to handle any non GET request received b...

How to Access the Loader Data in Remix by sergiodxa

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Load only the data you need in Remix by sergiodxa

If you are used to build SPA and your APIs are REST you probably have found the issue with over fetching, t...