Activity 24: POSTMAN

Step 1: Go to https://www.postman.com/downloads/

Press the Windows 64-bit button to download

Step 2: Create an account

Create an account to sign in and setup your role

After you’re all done, this will be your GUI

Understanding HTTP Methods in Postman: PUT, GET, DELETE, POST

Using Postman to interact with APIs can be straightforward once you understand the basic HTTP methods:GET,POST,PUT, andDELETE. Here’s a simple guide to help you grasp these concepts easily.

1. GET Method

• Purpose: Retrieve data from a server.

• How to Use:

  • Open Postman.

  • Select GET from the dropdown menu.

  • Enter the URL of the API endpoint (e.g., http://example.com/api/users).

  • Click Send to see the response.

2. POST Method

• Purpose: Create a new resource on the server.

• How to Use:

  • Select POST from the dropdown.

  • Enter the API endpoint URL (e.g., http://example.com/api/users).

  • Go to the Body tab and select raw. Choose JSON from the dropdown.

  • Enter your data in JSON format, like this:

  json{
    "name": "John Doe",
    "job": "Developer"
  }

• Click Send. You should receive a response indicating that the user was created successfully.

3. PUT Method

• Purpose: Update an existing resource completely.

• How to Use:

  • Select PUT from the dropdown.

  • Enter the URL of the resource you want to update (e.g., http://example.com/api/users/1).

  • In the Body, enter the complete updated object:

  json{
    "name": "John Doe",
    "job": "Senior Developer"
  }

• Click Send. The server will respond with a confirmation that the resource has been updated.

4. DELETE Method

• Purpose: Remove a resource from the server.

• How to Use:

  • Select DELETE from the dropdown.

  • Enter the URL of the resource you want to delete (e.g., http://example.com/api/users/1).

  • Click Send. The server will respond with a status code (like 204 No Content) indicating that the deletion was successful.

Tips for Using Postman

• Always check the API documentation for specific endpoints and required fields.

• Use JSON format for sending data in POST and PUT requests.

• The response codes (like 200 OK, 204 No Content) help you understand if your request was successful.