Simple lightweight metadata handler for React.
On the one hand handling metadata from scratch with React is hard. On the other hand existing solutions mostly provide a lot of configuration options, which makes it also hard to set it up.
react-metadata aims to fill the gap between these two sides. It provides an easy way to define metadata. Once you update metadata, previous metadata will be deleted. Ideally you use react-metadata together with a router, so that you can set the metadata per route.
npm install react-metadata
# or
yarn add react-metadataCreate a meta client instance and use the meta provider in your app entry:
importReactfrom'react';import{MetaClient,MetaProvider}from'react-metadata';constcontext={titleTemplate: 'Acme App',};constmetaClient=newMetaClient([{title: 'Acme App'}],context);functionApp({ children }){return<MetaProviderclient={metaClient}>{children}</MetaProvider>;}The code above demonstrates that MetaClient accepts two parameters:
| Parameter | Description |
|---|---|
initialData | The initial metadata, which is an array of meta descriptors. The meta descriptors are the same as the Remix meta descriptors. |
context | This can be any value that you want to pass down to useMeta. |
Afterwards you can use the useMeta hook in your components to update. Again the useMeta hook accepts an array of Remix like meta descriptors. Once you call useMeta, the current meta will be deleted. The current meta is either the initial data (if you have not called useMeta yet) or the data of the last useMeta call.
import{useMeta}from'react-metadata';functionDashboard(){useMeta([{title: 'Dashboard'}]);
...
}As described above you can also make use of the context. For that you need to pass a function to useMeta that returns the meta descriptors:
import{useMeta}from'react-metadata';functionDashboard(){useMeta(context=>([{title: `Dashboard | ${context.titleTemplate}`}]));
...
}For convenience it might also make sense to create a full meta template. We can do that by defining the context as a function:
constcontext=(input)=>{consttitle=input.title ? `${input.title} | Acme App` : 'Acme App';constdescription=input.description||'The Acme app is a very useful app.';return[{
title,},{name: 'description',content: description,},{property: 'og:title',content: title,},{property: 'og:description',content: description,},];};// Use raw template as initial data by defining the initial data as a function that gets the context.constmetaClient=newMetaClient((makeData)=>makeMeta(),context);import{useMeta}from'react-metadata';functionDashboard(){useMeta(makeMeta=>makeMeta({title: 'Dashboard',description: 'The Acme app dashboard is unbelievable.',}));
...
}This package also supports server side rendering. You can call metaClient.getElements() to get all meta tags as React elements. These elements should be inserted in the <head> tag of your initial html.
This package is released under the MIT License.