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 POST "https://api.dataforseo.com/v3/keywords_data/google/keywords_for_category/task_post" \
--header "Authorization: Basic ${cred}"  \
--header "Content-Type: application/json" \
--data-raw "[
    {
        "location_code": 2840,
        "category_code": 13895
    }
]"


        

<?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();
}
$post_array = array();
// simple way to set a task
$post_array[] = array(
   "location_name" => "United States",
   "category_code" => 13895
);
// after a task is completed, we will send a GET request to the address you specify
// instead of $id and $tag, you will receive actual values that are relevant to this task
$post_array[] = array(
   "language_code" => "en",
   "location_code" => 2840,
   "category_code" => 13895,
   "tag" => "some_string_123",
   "pingback_url" => 'https://your-server.com/pingscript?id=$id&tag=$tag'
);
// after a task is completed, we will send a POST request to the address you specify
// instead of $id and $tag, you will receive actual values that are relevant to this task
$post_array[] = array(
   "location_name" => "United States",
   "language_name" => "English",
   "category_code" => 13895,
   "postback_url" => "https://your-server.com/postbackscript"
);
try {
   // POST /v3/keywords_data/google/keywords_for_category/task_post
   $result = $client->post('/v3/keywords_data/google/keywords_for_category/task_post', $post_array);
   print_r($result);
   // do something with post 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")

post_data = dict()
# simple way to set a task
post_data[len(post_data)] = dict(
    location_name="United States",
    category_code=13895
)
# after a task is completed, we will send a GET request to the address you specify
# instead of $id and $tag, you will receive actual values that are relevant to this task
post_data[len(post_data)] = dict(
    language_code="en",
    location_code=2840,
    category_code=13895,
    tag="some_string_123",
    pingback_url="https://your-server.com/pingscript?id=$id&tag=$tag"
)
# after a task is completed, we will send a POST request to the address you specify
# instead of $id and $tag, you will receive actual values that are relevant to this task
post_data[len(post_data)] = dict(
    location_name="United States",
    language_name="English",
    category_code=13895,
    postback_url="https://your-server.com/postbackscript"
)
# POST /v3/keywords_data/google/keywords_for_category/task_post
response = client.post("/v3/keywords_data/google/keywords_for_category/task_post", post_data)
# 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 post_array = [];

post_array.push({
  "language_code": "en",
  "location_code": 2840,
  "category_code": 13895
});

const axios = require('axios');

axios({
  method: 'post',
  url: 'https://api.dataforseo.com/v3/keywords_data/google/keywords_for_category/task_post',
  auth: {
    username: 'login',
    password: 'password'
  },
  data: post_array,
  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 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 keywords_data_task_post()
        {
            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"))) }
            };
            var postData = new List<object>();
            // simple way to set a task
            postData.Add(new
            {
                location_name = "United States", 
                category_code = 13895
            });
            // after a task is completed, we will send a GET request to the address you specify 
            // instead of $id and $tag, you will receive actual values that are relevant to this task
            postData.Add(new
            {
                language_code = "en", 
                location_code = 2840, 
                category_code = 13895,
                tag = "some_string_123",
                pingback_url = "https://your-server.com/pingscript?id=$id&tag=$tag"
            });
            // after a task is completed, we will send a POST request to the address you specify 
            // instead of $id and $tag, you will receive actual values that are relevant to this task
            postData.Add(new
            {
                location_name = "United States", 
                language_name = "English", 
                category_code = 13895, 
                postback_url = "https://your-server.com/postbackscript"
            });
            // POST /v3/keywords_data/google/keywords_for_category/task_post
            var taskPostResponse = await httpClient.PostAsync("/v3/keywords_data/google/keywords_for_category/task_post", new StringContent(JsonConvert.SerializeObject(postData)));
            var result = JsonConvert.DeserializeObject<dynamic>(await taskPostResponse.Content.ReadAsStringAsync());
            // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
            if (result.status_code == 20000)
            {
                // do something with result
                Console.WriteLine(result);
            }
            else
                Console.WriteLine($"error. Code: {result.status_code} Message: {result.status_message}");
        }
    }
}

        

The above command returns JSON structured like this:

{
  "version": "0.1.20200130",
  "status_code": 20000,
  "status_message": "Ok.",
  "time": "0.0683 sec.",
  "cost": 0.15,
  "tasks_count": 3,
  "tasks_error": 0,
  "tasks": [
    {
      "id": "01301831-1535-0107-0000-1954f00ba9ff",
      "status_code": 20100,
      "status_message": "Task Created.",
      "time": "0.0019 sec.",
      "cost": 0.05,
      "result_count": 0,
      "path": [
        "v3",
        "keywords_data",
        "google",
        "keywords_for_category",
        "task_post"
      ],
      "data": {
        "api": "keywords_data",
        "function": "keywords_for_category",
        "se": "google",
        "location_name": "United States",
        "category_code": 13895
      },
      "result": null
    },
    {
      "id": "01301831-1535-0107-0000-21cc045291e0",
      "status_code": 20100,
      "status_message": "Task Created.",
      "time": "0.0020 sec.",
      "cost": 0.05,
      "result_count": 0,
      "path": [
        "v3",
        "keywords_data",
        "google",
        "keywords_for_category",
        "task_post"
      ],
      "data": {
        "api": "keywords_data",
        "function": "keywords_for_category",
        "se": "google",
        "language_code": "en",
        "location_code": 2840,
        "category_code": 13895,
        "pingback_url": "https://your-server.com/pingscript?id=$id&tag=$tag",
        "tag": "some_string_123"
      },
      "result": null
    },
    {
      "id": "01301831-1535-0107-0000-77a3219d7e0b",
      "status_code": 20100,
      "status_message": "Task Created.",
      "time": "0.0022 sec.",
      "cost": 0.05,
      "result_count": 0,
      "path": [
        "v3",
        "keywords_data",
        "google",
        "keywords_for_category",
        "task_post"
      ],
      "data": {
        "api": "keywords_data",
        "function": "keywords_for_category",
        "se": "google",
        "language_name": "English",
        "location_name": "United States",
        "category_code": 13895,
        "postback_url": "https://your-server.com/postbackscript"
      },
      "result": null
    }
  ]
}