How to update meta tags in React.js?

You can use react-meta-tags. It allows you to write title and other meta tags in a declarative way and in normal jsx format, which will be moved to head (Check server usage on the doc).

import React from 'react';
import MetaTags from 'react-meta-tags';

class Component1 extends React.Component {
  render() {
    return (
        <div class="wrapper">
          <MetaTags>
            <title>Page 1</title>
            <meta id="meta-description" name="description" content="Some description." />
            <meta id="og-title" property="og:title" content="MyApp" />
            <meta id="og-image" property="og:image" content="path/to/image.jpg" />
          </MetaTags>
          <div class="content"> Some Content </div>
        </div>
      )
  }
}

You may also like to check react-helmet if you have an advanced use case.

I've used react-document-meta in an older project.

Just define your meta values

const meta = {
    title: 'Some Meta Title',
    description: 'I am a description, and I can create multiple tags',
    canonical: 'http://example.com/path/to/page',
    meta: {
        charset: 'utf-8',
        name: {
            keywords: 'react,meta,document,html,tags'
        }
    }

and place a

<DocumentMeta {...meta} />

in the return