Query parameters help you to filter and request specific data from an API endpoint.

You can add query parameters in two ways:

  1. Add them in the URL.
  2. Add them in the parameters tab.

Adding parameters in the URL

To add a parameter in the URL, append ? at the end of the URL and add a parameter in key=value format.

You can add multiple parameters by separating them using &.

For example, the below URL is filtered to get the data of the first three Pokemon.

https://pokeapi.co/api/v2/pokemon/?offset=6&limit=3

For which you will get a similar response:

{
  "count": 1281,
  "next": "https://pokeapi.co/api/v2/pokemon?offset=9&limit=3",
  "previous": "https://pokeapi.co/api/v2/pokemon?offset=3&limit=3",
  "results": [
    {
      "name": "squirtle",
      "url": "https://pokeapi.co/api/v2/pokemon/7/"
    },
    {
      "name": "wartortle",
      "url": "https://pokeapi.co/api/v2/pokemon/8/"
    },
    {
      "name": "blastoise",
      "url": "https://pokeapi.co/api/v2/pokemon/9/"
    }
  ]
}

Using the parameters tab

Additionally, you can add the parameters as a key-value pair in the parameters tab, and these will be appended to the URL automatically when you send the request.

Try using the parameters tab to see if you get the same response as adding parameters in the URL.