How do you create a Request in Postman?

First create a request envelope

• Click File-New-Request in the main menu or Click New button and Request in the toolbar 
• Fill in the Request name
• Optionally fill in the Request descripion
• Select a Collection
• Optionally select a Folder
• Click Save button

then define request details

• Set request Method
• URL
• Parameters
• Headers
• Body
• Cookies

and click Save button.

From now on you can always reopen this request from the collection you saved it to.