React Helmet Dynamic Meta Tags | Add/Update Meta Tags

The <meta> tags always inside the <head> element and meta tags always passed as name/value pairs

React Helmet takes plain HTML tags and outputs plain HTML tags. React Helmet is very simple and friendly for beginner react developers.

Reactjs component will manage all of your changes to the document head.

Helmet will support following attributes for body:

1. html

2. title tags

Helmet will support of the following valid head tags:

1. title

2. base

3. meta

4. link

5. script

6. no-script

7. style tags

Helmet will support server-side rendering.

Helmet will supports nested components override duplicate head changes.

See the below examples step by step,

Example 1:

Steps 1 - install NPM commands

npm install react-helmet --save

Use Helmet Tags in your app componet:

import React from "react";

import { Helmet } from "react-helmet";

class Application extends React.Component {

    render() {

        return (

            <div className="application">

                <Helmet>

                    <meta charSet="utf-8" />

                    <title>Your Title Here..</title>

                    <link rel="canonical" href="https://code-sample.com/example" />

                    <meta property="og:site_name" content="code sample" />

                    <meta name="twitter:card" content="summary" />

                    <meta name="twitter:domain" content="code-sample.com" />

                    <meta name="twitter:title" property="og:title" itemprop="name" 

                    content="react helmet meta tag dynamically." />

                    <meta name="twitter:description" 

                    property="og:description" 

                    itemprop="description" 

                    content="I am trying to explain how to create meta tag from 

                    awebsite dynamically using react-helmet" />

                </Helmet>

                ...

        </div>

        );

    }

};

Nested or other components will override duplicate changes:

<Parent>

    <Helmet>

        <title>My Title</title>

        <meta name="description" content="Your Helmet description" />

        <meta property="og:site_name" content="code sample" />

        <meta name="twitter:card" content="summary" />

        <meta name="twitter:domain" content="code-sample.com" />

        <meta name="twitter:title" property="og:title" itemprop="name" 

        content="react helmet meta tag dynamically." />

        <meta name="twitter:description" property="og:description" 

        itemprop="description" 

        content="I am trying to explain how to create meta tag from awebsite 

        dynamically using react-helmet" />

    </Helmet>

    <Child>

        <Helmet>

            <title>Nested Title</title>

            <meta name="description" content="Your Nested component description" />

        </Helmet>

    </Child>

</Parent>

The outputs look like:

<head>

    <title>Nested Title</title>

    <meta name="description" content="Your Nested component description">

    <meta property="og:site_name" content="code sample" />

    <meta name="twitter:card" content="summary" />

    <meta name="twitter:domain" content="code-sample.com" />

    <meta name="twitter:title" property="og:title" itemprop="name" 

    content="react helmet meta tag dynamically." />

    <meta name="twitter:description" property="og:description" itemprop="description" 

    content="I am trying to explain how to create meta tag from awebsite 

    dynamically using react-helmet" />

</head>

Source URL: https://www.npmjs.com/package/react-helmet

For the Server Usage –

To use on the server, call Helmet.renderStatic() after ReactDOMServer.renderToString or ReactDOMServer.renderToStaticMarkup to get the head data for use in your prerender.

As an Example for Server Usage - https://www.npmjs.com/package/react-helmet

Download source code from GitHub

Example 2 - Explore this Add/Update Meta Tags in React

By Anil Singh | Rating of this article (*****)

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