add raw HTML with <script> inside Gatsby React page

You can inject external scripts (with no npm modules) to gatsby.js project in many ways. Prefer to use respective gatsby-plugin for "web-analytics" scripts.

Using require() :

Create a file in your project myScript.js and paste the script content
Add const myExtScript = require('../pathToMyScript/myScript')
to a statefull component at the Pages folder inside render() and before return() if you want to execute that script only at that page(=page/component scope).
```
export default class Contact extends React.Component {  
  render() {  
   const myExtScript = require('../pathToMyScript/myScript')  
    return (
      ........       
               )}
```
If you want to execute script in the global scope (=in every page/ component):
add it in html.js
```
<script dangerouslySetInnerHTML= {{ __html: ` 
    putYourSciptHereInBackticks `}} />`  
```
before closing the </body>. It is better to manipulate/monitor your global scope at this component because it has this specific purpose... to inject html to every page/route globally.

Another way to inject at the global scope is with require() before the component declaration. This will work but it's not a good practice, as your components shouldn't inject anything globally.

 const myExtScript = require('../pathToMyScript/myScript')  

   export default class Contact extends React.Component {  
    render() {  
      return (
      ........       
               )}

P.S. Sorry if the answer is not edited properly. This my first answer at StackOverflow.

Use React-Helmet

First import Helmet from 'react-helmet'

Inside your div you can do like this

<Helmet>
<script type='text/javascript'>
(function(d, s) {
    var useSSL = 'https:' == document.location.protocol;
    var js, where = d.getElementsByTagName(s)[0],
    js = d.createElement(s);
    js.src = (useSSL ? 'https:' : 'http:') +  '//www.peopleperhour.com/hire/1002307300/1213788.js?width=300&height=135&orientation=vertical&theme=light&rnd='+parseInt(Math.random()*10000, 10);
    try { where.parentNode.insertBefore(js, where); } catch (e) { if (typeof console !== 'undefined' && console.log && e.stack) { console.log(e.stack); } }
}(document, 'script'));
</script>
</Helmet>

Apparently using a multiline JS syntax did the trick, as in

let test = "<script type='text/javascript'>\
(function(d, s) {\
    var useSSL = 'https:' == document.location.protocol;\
    var js, where = d.getElementsByTagName(s)[0],\
    js = d.createElement(s);\
    js.src = (useSSL ? 'https:' : 'http:') +  '//www.peopleperhour.com/hire/1002307300/1213788.js?width=300&height=135&orientation=vertical&theme=light&rnd='+parseInt(Math.random()*10000, 10);\
    try { where.parentNode.insertBefore(js, where); } catch (e) { if (typeof console !== 'undefined' && console.log && e.stack) { console.log(e.stack); } }\
}(document, 'script'));\
</script><div id='pph-hireme'></div>"

alternatively, you can do

let test2 = `
<script type='text/javascript'>
(function(d, s) {
    var useSSL = 'https:' == document.location.protocol;
    var js, where = d.getElementsByTagName(s)[0],
    js = d.createElement(s);
    js.src = (useSSL ? 'https:' : 'http:') +  '//www.peopleperhour.com/hire/1002307300/1213788.js?width=300&height=135&orientation=vertical&theme=light&rnd='+parseInt(Math.random()*10000, 10);\
    try { where.parentNode.insertBefore(js, where); } catch (e) { if (typeof console !== 'undefined' && console.log && e.stack) { console.log(e.stack); } }\
}(document, 'script'));
</script><div id='pph-hireme'></div>
`

Any more comments are welcome

add raw HTML with <script> inside Gatsby React page

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