Thanks for you response!!
Please correct me if I am wrong somewhere.
As per your suggestion, I have read the document and checked the custom integration too since it is somewhat relatable as per my need. But In that section, I found webhooks which will be connected to a particular integration and will trigger that particular webhook on a specific event.
What my expectation is:
Suppose there is a specific post page so whenever that post is loading in the browser that time whatever response is coming from the ghost(Basically it will return post HTML content), so on that HTML content I want to do some manipulation from the server end only and in result, the updated content should appear on the client end.
Now if I will go with the ghost’s custom integration with webhook then how I can achieve it? Because webhooks are having events related to POST/UPDATE requests only. And as I studied about the webhooks I found that if there is frequent request then we shouldn’t use webhooks as well as for GET request there are not an option to create webhooks on basis of the event.