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Original Author: Vin Bui
Postman is an API platform used by developers to test API calls. It is a powerful tool that we can use to build and design APIs.


You can download Postman here. Once it’s installed, create an account.

Getting Started

  1. 1.
    To get started, create a Blank Workspace. Give it a name and set the access scope to whatever you like.
  2. 2.
    Make sure the Collections tab is selected, then click the + button to create a new collection.
  3. 3.
    To add requests to this collection, click on the triple dots () then select Add request.

Creating a Request

  1. 1.
    Click on the triple dots () next to your collection and select Add request.
  2. 2.
    Give it any name you want.
  3. 3.
    Select the request type: GET, POST, etc.
  4. 4.
    Enter the endpoint URL.
  5. 5.
    (Optional) Provide a request body or input query parameters.
    1. 1.
      For the request body, select Body > Raw > JSON. Then input body parameters in JSON format.
  6. 6.
    Click send to send the request


GET Request

Let’s fetch the FA23 AppDev Roster:
This is a GET request that does not take in any query parameters or request body. You can also see the status of the request (”200 OK”).

POST Request

Let’s add a new member to the roster:
This is a POST request that takes in a request body in the above JSON format. The server responds with a 200 status code and the member that we added.
If we tried to provide an invalid request, then the server responds with a 400 Bad Request status code and an error message.