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)" 
id="04171455-0696-0192-0000-4c69cc29b945" 
curl --location --request GET "https://api.dataforseo.com/v3/merchant/amazon/asin/task_get/advanced/${id}" 
--header "Authorization: Basic ${cred}"  
--header "Content-Type: application/json" 
--data-raw ""


        

<?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/';
// Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
$client = new RestClient($api_url, null, 'login', 'password');

try {
   $result = array();
   // #1 - using this method you can get a list of completed tasks
   // GET /v3/merchant/amazon/asin/tasks_ready
   $tasks_ready = $client->get('/v3/merchant/amazon/asin/tasks_ready');
   // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
   if (isset($tasks_ready['status_code']) AND $tasks_ready['status_code'] === 20000) {
      foreach ($tasks_ready['tasks'] as $task) {
         if (isset($task['result'])) {
            foreach ($task['result'] as $task_ready) {
               // #2 - using this method you can get results of each completed task
               // GET /v3/merchant/amazon/asin/task_get/advanced/$id
               if (isset($task_ready['endpoint_advanced'])) {
                  $result[] = $client->get($task_ready['endpoint_advanced']);
               }
               // #3 - another way to get the task results by id
               // GET /v3/merchant/amazon/asin/task_get/advanced/$id
               /*
               if (isset($task_ready['id'])) {
                  $result[] = $client->get('/v3/merchant/amazon/asin/task_get/advanced/' . $task_ready['id']);
               }
               */
            }
         }
      }
   }
   print_r($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")
# 1 - using this method you can get a list of completed tasks
# GET /v3/merchant/amazon/asin/tasks_ready
response = client.get("/v3/merchant/amazon/asin/tasks_ready")
# you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
if response['status_code'] == 20000:
    results = []
    for task in response['tasks']:
        if (task['result'] and (len(task['result']) > 0)):
            for resultTaskInfo in task['result']:
                # 2 - using this method you can get results of each completed task
				# GET /v3/merchant/amazon/asin/task_get/advanced/$id
                if(resultTaskInfo['endpoint_advanced']):
                    results.append(client.get(resultTaskInfo['endpoint_advanced']))
                '''
                # 3 - another way to get the task results by id
                # GET /v3/merchant/amazon/asin/task_get/advanced/$id              
                if(resultTaskInfo['id']):
                    results.append(client.get("/v3/merchant/amazon/asin/task_get/advanced/" + resultTaskInfo['id']))
                '''
    print(results)
    # do something with result
else:
    print("error. Code: %d Message: %s" % (response["status_code"], response["status_message"])) 


        

            


const task_id = '02201115-0001-0066-0000-c06c8f23fce5';

const axios = require('axios');

axios({
    method: 'get',
    url: 'https://api.dataforseo.com/v3/merchant/amazon/asin/task_get/advanced/' + task_id,
    auth: {
        username: 'login',
        password: 'password'
    },
    headers: {
        'content-type': 'application/json'
    }
}).then(function (response) {
    var result = response['data']['tasks'];
    // Result data
    console.log(result);
}).catch(function (error) {
    console.log(error);
});


        

            

using Newtonsoft.Json;
using System;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
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 merchant_amazon_asin_task_get()
        {
            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"))) }
            };
            // #1 - using this method you can get a list of completed tasks
            // GET /v3/merchant/amazon/asin/tasks_ready
            var response = await httpClient.GetAsync("/v3/merchant/amazon/asin/tasks_ready");
            var tasksInfo = JsonConvert.DeserializeObject<dynamic>(await response.Content.ReadAsStringAsync());
            var tasksResponses = new List<object>();
            // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
            if (tasksInfo.status_code == 20000)
            {
                if (tasksInfo.tasks != null)
                {
                    foreach (var tasks in tasksInfo.tasks)
                    {
                        if (tasks.result != null)
                        {
                            foreach (var task in tasks.result)
                            {
                                if (task.endpoint_advanced != null)
                                {
                                    // #2 - using this method you can get results of each completed task
                                    // GET /v3/merchant/amazon/asin/task_get/advanced/$id
                                    var taskGetResponse = await httpClient.GetAsync((string)task.endpoint_advanced);
                                    var taskResultObj = JsonConvert.DeserializeObject<dynamic>(await taskGetResponse.Content.ReadAsStringAsync());
                                    if (taskResultObj.tasks != null)
                                    {
                                        var fst = taskResultObj.tasks.First;
                                        // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
                                        if (fst.status_code >= 40000 || fst.result == null)
                                            Console.WriteLine($"error. Code: {fst.status_code} Message: {fst.status_message}");
                                        else
                                            tasksResponses.Add(fst.result);
                                    }
                                    // #3 - another way to get the task results by id
                                    // GET /v3/merchant/amazon/asin/task_get/advanced/$id
                                    /*
                                    var tasksGetResponse = await httpClient.GetAsync("/v3/merchant/amazon/asin/task_get/advanced/" + (string)task.id);
                                    var taskResultObj = JsonConvert.DeserializeObject<dynamic>(await tasksGetResponse.Content.ReadAsStringAsync());
                                    if (taskResultObj.tasks != null)
                                    {
                                        var fst = taskResultObj.tasks.First;
                                        // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
                                        if (fst.status_code >= 40000 || fst.result == null)
                                            Console.WriteLine($"error. Code: {fst.status_code} Message: {fst.status_message}");
                                        else
                                            tasksResponses.Add(fst.result);
                                    }
                                    */
                                }
                            }
                        }
                    }
                }
                if (tasksResponses.Count > 0)
                    // do something with result
                    Console.WriteLine(String.Join(Environment.NewLine, tasksResponses));
                else
                    Console.WriteLine("No completed tasks");
            }
            else
                Console.WriteLine($"error. Code: {tasksInfo.status_code} Message: {tasksInfo.status_message}");
        }
    }
}


        

The above command returns JSON structured like this:

{
  "version": "0.1.20210519",
  "status_code": 20000,
  "status_message": "Ok.",
  "time": "0.0500 sec.",
  "cost": 0,
  "tasks_count": 1,
  "tasks_error": 0,
  "tasks": [
    {
      "id": "05251541-1535-0192-0000-b4d6f31c9ceb",
      "status_code": 20000,
      "status_message": "Ok.",
      "time": "0.0227 sec.",
      "cost": 0,
      "result_count": 1,
      "path": [
        "v3",
        "merchant",
        "amazon",
        "asin",
        "task_get",
        "advanced",
        "05251541-1535-0192-0000-b4d6f31c9ceb"
      ],
      "data": {
        "se_type": "shopping",
        "api": "merchant",
        "function": "asin",
        "se": "amazon",
        "language_code": "en_GB",
        "location_name": "United Kingdom",
        "asin": "B08KV5ZJBZ",
        "priority": 2,
        "device": "desktop",
        "os": "windows"
      },
      "result": [
        {
          "asin": "B08KV5ZJBZ",
          "type": "shopping",
          "se_domain": "amazon.co.uk",
          "location_code": 2826,
          "language_code": "en_GB",
          "check_url": "https://www.amazon.co.uk/dp/B08KV5ZJBZ?language=en_GB",
          "datetime": "2021-05-25 12:41:51 +00:00",
          "item_types": [
            "amazon_product_info"
          ],
          "items_count": 1,
          "items": [
            {
              "type": "amazon_product_info",
              "rank_group": 1,
              "rank_absolute": 1,
              "position": "left",
              "xpath": "/#document",
              "title": "Code Name Bananas: The hilarious and epic new children’s book from multi-million bestselling author David Walliams",
              "details": "Product details\nASIN\n: B08KV5ZJBZ\nPublisher\n: HarperCollinsChildren’sBooks (5 Nov. 2020)\nLanguage\n: English\nFile size\n: 125658 KB\nText-to-Speech\n: Enabled\nScreen Reader\n: Supported\nEnhanced typesetting\n: Enabled\nX-Ray\n: Not Enabled\nWord Wise\n: Enabled\nPrint length\n: 481 pages\nPage numbers source ISBN\n: 0008305838\nBest Sellers Rank: 7,005 in Kindle Store ( See Top 100 in Kindle Store )\n1 in Children's Zoo eBooks\n1 in Children's Military Historical Fiction\n2 in Children's Spy eBooks\nCustomer reviews:\nASIN\n: B08KV5ZJBZ\nPublisher\n: HarperCollinsChildren’sBooks (5 Nov. 2020)\nLanguage\n: English\nFile size\n: 125658 KB\nText-to-Speech\n: Enabled\nScreen Reader\n: Supported\nEnhanced typesetting\n: Enabled\nX-Ray\n: Not Enabled\nWord Wise\n: Enabled\nPrint length\n: 481 pages\nPage numbers source ISBN\n: 0008305838",
              "image_url": "https://m.media-amazon.com/images/I/51wPfsrMekL._SY346_.jpg",
              "author": "by David Walliams (Author) › Visit Amazon's David Walliams Page search results for this author David Walliams (Author), Tony Ross (Illustrator) Format: Kindle Edition",
              "data_asin": "B08KV5ZJBZ",
              "parent_asin": null,
              "product_asins": [
                "0008454299",
                "0008454310",
                "B08LH7B5FJ",
                "0008305838",
                "B08KV5ZJBZ"
              ],
              "price_from": 6.5,
              "price_to": 10.15,
              "currency": "GBP",
              "is_amazon_choice": false,
              "rating": {
                "type": "rating_element",
                "position": "left",
                "rating_type": "Max5",
                "value": "4.8",
                "votes_count": 15188,
                "rating_max": "5"
              },
              "is_newer_model_available": false,
              "newer_model": null,
              "categories": null,
              "product_information": [
                {
                  "type": "product_information_extended_item",
                  "section_name": "Product description",
                  "contents": [
                    {
                      "type": "product_information_rows",
                      "title": "Review",
                      "rows": [
                        {
                          "type": "product_information_text_row",
                          "text": "PRAISE FOR DAVID WALLIAMS: “Dahl finally has a worthy successor” – Telegraph “Another triumph for David Walliams. His books are a breath of wonderful fresh air” – The Sun ‘[Walliams’ books] are brilliantly, beautifully and seemingly effortlessly written … Mr Dahl finally has a worthy successor’ Telegraph ‘Walliams understands something crucial about children and stories’ Metro “A great comic tale… Walliams is a natural wit” – Evening Standard \"Well written, funny, touching\" – Observer \"A passionate celebration of individuality\" – Telegraph \"Believable characters and a story that's original and intriguing” ***** – Heat “Charming, funny” – The Times “Has a lovely, Dahlian fluency to it” – Time Out"
                        }
                      ]
                    },
                    {
                      "type": "product_information_rows",
                      "title": "Book Description",
                      "rows": [
                        {
                          "type": "product_information_text_row",
                          "text": "The hilarious and epic new children’s book from multi-million bestselling author David Walliams in 2020"
                        }
                      ]
                    }
                  ]
                },
                {
                  "type": "product_information_extended_item",
                  "section_name": "From the Publisher",
                  "contents": [
                    {
                      "type": "product_information_rows",
                      "title": "Every secret military operation needs a code name...",
                      "rows": [
                        {
                          "type": "product_information_image_row",
                          "alt": "code name bananas",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/2a5eba56-8708-49a0-ab06-4ec9bf48925a.__CR0,0,1500,1500_PT0_SX300_V1___.jpg"
                        },
                        {
                          "type": "product_information_text_row",
                          "text": "\"Every secret military operation needs a code name...\" A must-have gift for David Walliams’s readers, Code Name Bananas is a rip-roaring, action packed, page-turning adventure to capture the imaginations of children across the globe! David Walliams said, \" This book is an epic comedy adventure set in World War II with an animal at the centre of the story. I hope children will fall in love with Gertrude the gorilla. There is plenty of humour, action and excitement to delight even the most reluctant reader.\" Eric and Gertrude embark on a daring adventure across 1940s London, and together they explore...\nLondon Zoo!\nHyde Park!\nVictoria Station!\nLondon Bridge!\nAnd all the way to Bognor Regis!\nRead more"
                        }
                      ]
                    },
                    {
                      "type": "product_information_rows",
                      "title": "Meet the hilarious characters from Code Name Bananas!",
                      "rows": [
                        {
                          "type": "product_information_image_row",
                          "alt": "eric",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/5510d0e4-e203-42cc-a045-3477b797a8e0.__CR0,0,300,300_PT0_SX300_V1___.jpg"
                        },
                        {
                          "type": "product_information_image_row",
                          "alt": "gertrude",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/cbc1e17d-3d2b-452c-b422-8b9c58518736.__CR0,0,300,300_PT0_SX300_V1___.jpg"
                        },
                        {
                          "type": "product_information_image_row",
                          "alt": "sid",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/4e8359c0-e7a2-48b7-a8d8-6577ab6eab89.__CR0,0,300,300_PT0_SX300_V1___.jpg"
                        },
                        {
                          "type": "product_information_text_row",
                          "text": "Meet the hilarious characters from Code Name Bananas!\nERIC \tGERTRUDE \tSID\nRead more"
                        }
                      ]
                    },
                    {
                      "type": "product_information_rows",
                      "title": null,
                      "rows": [
                        {
                          "type": "product_information_image_row",
                          "alt": "code name bananas",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/9affc1f6-263e-48ad-b913-1bdf262df68e.__CR0,0,150,300_PT0_SX150_V1___.jpg"
                        },
                        {
                          "type": "product_information_image_row",
                          "alt": "the world's worst parents",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/39f22a0a-2d59-492b-bd29-078a84a805d8.__CR0,0,150,300_PT0_SX150_V1___.jpg"
                        },
                        {
                          "type": "product_information_image_row",
                          "alt": "slime",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/e8b7b79b-f8d4-4306-928b-ff753246703e.__CR0,0,150,300_PT0_SX150_V1___.jpg"
                        },
                        {
                          "type": "product_information_image_row",
                          "alt": "the beast of buckingham palace",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/d059dfa5-86a7-4133-b039-d10f201bcfb2.__CR0,0,150,300_PT0_SX150_V1___.jpg"
                        },
                        {
                          "type": "product_information_text_row",
                          "text": "Code Name Bananas The World's Worst Parents Slime The Beast of Buckingham Palace\nGo on an adventure! ✓ \t✓ \t✓ \t✓\nMeet brave heroes! ✓ \t✓ \t✓ \t✓\nLaugh out loud! ✓ \t✓ \t✓ \t✓\nGasp with delight! ✓ \t✓ \t✓ \t✓\nExperience the magic! ✓ \t✓ \t✓ \t✓"
                        }
                      ]
                    },
                    {
                      "type": "product_information_rows",
                      "title": null,
                      "rows": [
                        {
                          "type": "product_information_image_row",
                          "alt": "code name bananas",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/0d5a78ef-d9aa-4862-b384-7ae1ea082201.__CR0,0,970,300_PT0_SX970_V1___.jpg"
                        },
                        {
                          "type": "product_information_video_row",
                          "preview": "https://m.media-amazon.com/images/S/aplus-media/vc/a42df2dd-1731-4582-8994-843ec8556c36.__CR0,0,1464,600_PT0_SX1464_V1___.jpg",
                          "url": "https://m.media-amazon.com/images/S/aplus-media/vc/c3782483-667c-4fdf-8c67-c35e99a16dfb.mp4"
                        },
                        {
                          "type": "product_information_text_row",
                          "text": "Read more"
                        }
                      ]
                    }
                  ]
                },
                {
                  "type": "product_information_details_item",
                  "section_name": "Product details",
                  "body": {
                    "ASIN": "B08KV5ZJBZ",
                    "Publisher": "HarperCollinsChildren’sBooks (5 Nov. 2020)",
                    "Language": "English",
                    "File size": "125658 KB",
                    "Text-to-Speech": "Enabled",
                    "Screen Reader": "Supported",
                    "Enhanced typesetting": "Enabled",
                    "X-Ray": "Not Enabled",
                    "Word Wise": "Enabled",
                    "Print length": "481 pages",
                    "Page numbers source ISBN": "0008305838",
                    "Best Sellers Rank": "7,005 in Kindle Store ( See Top 100 in Kindle Store )\n1 in Children's Zoo eBooks\n1 in Children's Military Historical Fiction\n2 in Children's Spy eBooks",
                    "Customer reviews": "4.8 out of 5 stars 15,188 ratings"
                  }
                }
              ],
              "product_images_list": null,
              "description": null,
              "is_available": true
              "product_videos_list": null,
              "description": null,
              "is_available": true
            }
          ]
        }
      ]
    }
  ]
}