$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Postman on Ubuntu GNU+Linux Distro

GNU/Linux Ubuntu Installing Postman Guide

How to Install Postman REST/SOAP Client on Ubuntu GNU/Linux desktops – Step by step Tutorials.

And Postman for Ubuntu is the Complete API Development Environment with Integrated Tools for Every Stage of the API Lifecycle.

Moreover, you find included detailed instructions on How to Getting Started with Postman POST Request Testing on GNU/Linux.

Finally, this Setup is valid for all the Ubuntu-based Distros like:

  • Linux Mint
  • Zorin OS
  • Lubuntu
  • Elementary OS
  • Kde Neon
  • Pop_OS!
  • Xubuntu
  • Linux Lite
  • Bodhi
  • Puppy
  • Kubuntu
  • LXLE
  • Trisquel
  • Voyager Ubuntu
  • feren OS
  • Peppermint
  • Linux Ultimate Edition
How to Install Postman on Ubuntu GNU+Linux Distro

GNU/Linux Ubuntu Postman Installation Guide