“This tiny library only does one thing, and does it well.”Īnd although the readme file lists several features, all it boils down to is: This library is very good at fetching data (using the provided useAsync hook). That being said, comparing them is not fair (the primary argument is that react-async-hook does not have built-in support for caching - by design). React-async-hook is a tiny library created by Sébastien Lorber (author of the newsletter ), and it’s not seeing as much usage as the more full-featured libraries we’ve already looked at. The hooks provided by SWR are packed with power, and support, for example, pagination, mutations, prefetching, and SSR (Server Side Rendering). But don’t underestimate the effort you must put into customizing your setup before you’re satisfied.ĭon’t be fooled by the simpleness of all this. You define a client, make the client available with a dedicated provider, and you’re pretty much good to go. And it quickly becomes quite a challenge to maintain this logic.Ĭompared to Relay, it’s easier to set up and get going. But as soon as your application starts to grow and you need functionality such as pagination or data filtering (e.g., running the same query several times with different variables), you might run into a scenario where you have to customize the caching functionality.
By default, caching seems to work fine - and to be honest, it does. The key takeaway for me with this library is that it’s doing its job well and is highly customizable, but you have to be careful with caching strategies. It’s a library that I’ve been using a lot myself. To a small extent, it’s comparable with Relay (but be aware, there are also major differences). Apollo ClientĪnother serious contender for the toughest animal in the JavaScript jungle is Apollo Client: “ a comprehensive state management library for JavaScript that enables you to manage both local and remote data with GraphQL.” The Relay Compiler is watching for changes during development. The GraphQL schema also needs to be stored in your repository ( get-graphql-schema might come in handy for you). To get started, you need to define a generic fetch function, a so-called Relay Environment, and you need to have the Relay Compiler running (preferably as a watch process during development). As an obvious example: uses Relay (together with the more developer-friendly Relay Hooks since 2021). That being said, it’s extremely powerful and performant. And even after that’s all in place, you will be left with many questions and challenges if you have little knowledge about it.
#REACT FETCH CODE#
It requires quite a bit of boilerplate code and setup before you can start. This is not a tool for the faint-hearted. Greg wrote a nice backstory about the development on his blog.
Relay (or “Relay Modern,” as the second version was called) is an advanced framework for building data-driven applications with React and GraphQL, created by Facebook.Īfter initial trials and experiments, Relay Modern was released on April 18, 2017, after it had been developed and rehauled by Greg Hurell and Joe Savona, among several others. Subscribe to my newsletter for a such small valuable piece of useful information.Photo by Dima Solomin on Unsplash 1. Read react documentation about data fetching.
#REACT FETCH HOW TO#
Learn how to create a react app on an android device. Remember that this is just an example you may need to modify it to fit your specific needs and requirements. When the component is rendered, it will display a loading message until the data is loaded, and then it will display the data in a formatted way. This function makes a request to the API endpoint using the fetch() function, and then it parses the response as JSON and sets the resulting data in the component’s state using the setData() function from the useState() hook. In this example, the fetchData() function is used to fetch the data from the API.
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