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1) Install Postman

Install the software "Postman" for your OS.


If you get

"error while loading shared libraries: cannot open shared object file: No such file or directory"

You may first need to run this in the terminal:

sudo apt-get install -y libgconf-2-4


If you have an old computer you might find Postman being very slow or becoming unresponsive. In this case you can try the following alternatives:

  • Thunder Client: a VS Code extension with very similar user interface to Postman’s
  • Hoppscotch: a web app with somewhat similar user interface to Postman’s, runs in the browser