Instead of ‘login’ and ‘password’ use your credentials from https://app.dataforseo.com/api-access

            

# Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access 
login="login" 
password="password" 
cred="$(printf ${login}:${password} | base64)" 
curl --location --request GET "https://api.dataforseo.com/v3/app_data/apple/app_listings/categories" 
--header "Authorization: Basic ${cred}"  
--header "Content-Type: application/json" 


        

<?php
// You can download this file from here https://cdn.dataforseo.com/v3/examples/php/php_RestClient.zip
require('RestClient.php');
$api_url = 'https://api.dataforseo.com/';
try {
	// Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
	$client = new RestClient($api_url, null, 'login', 'password');
} catch (RestClientException $e) {
	echo "n";
	print "HTTP code: {$e->getHttpCode()}n";
	print "Error code: {$e->getCode()}n";
	print "Message: {$e->getMessage()}n";
	print  $e->getTraceAsString();
	echo "n";
	exit();
}
try {
	// using this method you can get a list of categories
	// GET /v3/app_data/apple/app_listings/categories
	// in addition to 'apple' you can also set other search engine
	// the full list of possible parameters is available in documentation
	$result = $client->get('/v3/app_data/apple/app_listings/categories');
	print_r($result);
	// do something with result
} catch (RestClientException $e) {
	echo "n";
	print "HTTP code: {$e->getHttpCode()}n";
	print "Error code: {$e->getCode()}n";
	print "Message: {$e->getMessage()}n";
	print  $e->getTraceAsString();
	echo "n";
}
$client = null;
?>

            

from client import RestClient
# You can download this file from here https://cdn.dataforseo.com/v3/examples/python/python_Client.zip
client = RestClient("login", "password")
# using this method you can get a list of categories
# GET /v3/app_data/apple/app_listings/categories
# in addition to 'apple' you can also set other search engine
# the full list of possible parameters is available in documentation
response = client.get("/v3/app_data/apple/app_listings/categories")
# you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
if response["status_code"] == 20000:
    print(response)
    # do something with result
else:
    print("error. Code: %d Message: %s" % (response["status_code"], response["status_message"]))

        

            


const axios = require('axios');

axios({
    method: 'get',
    url: 'https://api.dataforseo.com/v3/app_data/apple/app_listings/categories',
    auth: {
        username: 'login',
        password: 'password'
    },
    headers: {
        'content-type': 'application/json'
    }
}).then(function (response) {
    var result = response['data']['tasks'][0]['result'];
    // Result data
    console.log(result);
}).catch(function (error) {
    console.log(error);
});


        

            

using Newtonsoft.Json;
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;

namespace DataForSeoDemos
{
    public static partial class Demos
    {
        public static async Task app_data_categories()
        {
            var httpClient = new HttpClient
            {
                BaseAddress = new Uri("https://api.dataforseo.com/"),
                // Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
                DefaultRequestHeaders = { Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes("login:password"))) }
            };
            // using this method you can get a list of categories
            // GET /v3/app_data/apple/app_listings/categories
            // in addition to 'apple' you can also set other search engine
            // the full list of possible parameters is available in documentation
            var response = await httpClient.GetAsync("/v3/app_data/apple/app_listings/categories");
            var result = JsonConvert.DeserializeObject<dynamic>(await response.Content.ReadAsStringAsync());
            // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
            if (result.status_code == 20000)
            {
                // do something with result
                Console.WriteLine(result);
            }
            else
                Console.WriteLine($"error. Code: {result.status_code} Message: {result.status_message}");
        }
    }
}


        

The above command returns JSON structured like this:

{
  "version": "0.1.20221214",
  "status_code": 20000,
  "status_message": "Ok.",
  "time": "0.1562 sec.",
  "cost": 0,
  "tasks_count": 1,
  "tasks_error": 0,
  "tasks": [
    {
      "id": "06161845-1535-0552-0000-20b8b02898c6",
      "status_code": 20000,
      "status_message": "Ok.",
      "time": "0.0301 sec.",
      "cost": 0,
      "result_count": 54,
      "path": [
        "v3",
        "app_data",
        "apple",
        "app_listings",
        "categories"
      ],
      "data": {
        "api": "app_data",
        "function": "categories",
        "se": "apple"
      },
      "result": [
        {
          "category": "Business",
          "count": 116019
        },
        {
          "category": "Education",
          "count": 114472
        },
        {
          "category": "Utilities",
          "count": 98643
        },
        {
          "category": "Lifestyle",
          "count": 83976
        },
        {
          "category": "Health & Fitness",
          "count": 69260
        },
        {
          "category": "Food & Drink",
          "count": 68103
        },
        {
          "category": "Shopping",
          "count": 56584
        },
        {
          "category": "Productivity",
          "count": 56501
        },
        {
          "category": "Entertainment",
          "count": 50946
        },
        {
          "category": "Finance",
          "count": 49696
        },
        {
          "category": "Travel",
          "count": 42808
        },
        {
          "category": "Sports",
          "count": 37386
        },
        {
          "category": "Music",
          "count": 30304
        },
        {
          "category": "Medical",
          "count": 26956
        },
        {
          "category": "Casual",
          "count": 26831
        },
        {
          "category": "Social Networking",
          "count": 26393
        },
        {
          "category": "Puzzle",
          "count": 25967
        },
        {
          "category": "Photo & Video",
          "count": 23912
        },
        {
          "category": "Games",
          "count": 21880
        },
        {
          "category": "News",
          "count": 21022
        },
        {
          "category": "Action",
          "count": 20740
        },
        {
          "category": "Reference",
          "count": 18469
        },
        {
          "category": "Simulation",
          "count": 15480
        },
        {
          "category": "Navigation",
          "count": 12879
        },
        {
          "category": "Books",
          "count": 12262
        },
        {
          "category": "Adventure",
          "count": 10977
        },
        {
          "category": "Family",
          "count": 9434
        },
        {
          "category": "Board",
          "count": 7299
        },
        {
          "category": "Role Playing",
          "count": 6893
        },
        {
          "category": "Racing",
          "count": 6877
        },
        {
          "category": "Word",
          "count": 5942
        },
        {
          "category": "Card",
          "count": 5614
        },
        {
          "category": "Trivia",
          "count": 5575
        },
        {
          "category": "Strategy",
          "count": 5460
        },
        {
          "category": "Weather",
          "count": 4200
        },
        {
          "category": "Graphics & Design",
          "count": 3550
        },
        {
          "category": "Emoji & Expressions",
          "count": 2893
        },
        {
          "category": "Casino",
          "count": 2407
        },
        {
          "category": "Animals & Nature",
          "count": 2066
        },
        {
          "category": "Magazines & Newspapers",
          "count": 1910
        },
        {
          "category": "Developer Tools",
          "count": 1544
        },
        {
          "category": "Celebrations",
          "count": 1250
        },
        {
          "category": "Comics & Cartoons",
          "count": 972
        },
        {
          "category": "Stickers",
          "count": 592
        },
        {
          "category": "Art",
          "count": 431
        },
        {
          "category": "Eating & Drinking",
          "count": 361
        },
        {
          "category": "People",
          "count": 326
        },
        {
          "category": "Places & Objects",
          "count": 324
        },
        {
          "category": "Sports & Activities",
          "count": 275
        },
        {
          "category": "Gaming",
          "count": 167
        },
        {
          "category": "Kids & Family",
          "count": 152
        },
        {
          "category": "Celebrities",
          "count": 114
        },
        {
          "category": "Movies & TV",
          "count": 96
        },
        {
          "category": "Fashion",
          "count": 87
        }
      ]
    }
  ]
}