Params consist of two types:  Path and Query parameters.  These parameters are two ways to pass information to a web server in an HTTP request. They serve distinct purposes and are used in different scenarios:

Path ParameterQuery Parameter

Path parameter defines the location of the URL path, appearing between slashes. For example, /users/{user_id}. They are used to identify a specific resource or endpoint on the server. Changing the path parameter value typically implies a request for a different resource.

Example: In the URL https://example.com/users/123, "123" is a path parameter representing a specific user's ID.

Query parameters are appended to the end of the URL after a question mark. For example, ?page=1&limit=10. They are used to provide additional information or filter data without changing the resource being accessed. Query parameters are often used for sorting, filtering, or pagination. 

Query parameters are visible in the URL, but they do not appear directly in the path, making the URL cleaner and more concise.

Example: In the URL https://example.com/products?category=electronics, "category" is a query parameter used to filter products.

Steps to Add a Parameter

Follow the steps to add a Query or Path parameter

  1. In the Request window, click the Params tab.
    The params tab appears.
  2. Click the icon.
    The Parameters pop-up window appears.
  3. Select the param Type from the drop-down list. 
  4. Specify the Name for the param you have selected.

  5. Click the Insert Dynamic Parameter button to add values in the Value textbox or specify the values in the textbox.

  6. Click the Add button.
    The details are added to the Params tab.