The Postman REST client is a client application that has a Chrome extension. Here we will go into how to install and use the client.
Go to the Chrome web store: https://chrome.google.com/webstore/category/extensions?hl=en

Search for Postman. You will see this app below. Click Add To Chrome:

You will see this Postman link below:

This will open the page:

And after that:

Enter a REST URI, e.g. https://www.googleapis.com/books/v1/volumes?q=isbn:0747532699
The response is returned:

You can change the response type:

And the type of operation:

And view the code associated with the request:

And generate different code snippets:


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