> For the complete documentation index, see [llms.txt](https://developers.oxylabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.oxylabs.io/products/es/web-scraper-api/integration-methods/push-pull.md).

# Push-Pull

Push-Pull es nuestro método de integración recomendado para manejar de forma fiable grandes cantidades de datos.

{% hint style="success" %}
Visita el repositorio de GitHub de Oxylabs para ver un ejemplo completo y funcional de [**la integración Push-Pull en Python**](https://github.com/oxylabs/product-integrations/tree/master/scraper-apis/Python/push_pull). 
{% endhint %}

Push-Pull es un método de integración asíncrono. Al enviar el trabajo, recibirás rápidamente una `JSON` respuesta JSON que contiene todos los detalles del trabajo, incluidos los parámetros del trabajo, el ID y las URL para descargar resultados y comprobar el estado. Una vez que se procese tu trabajo, te actualizaremos mediante una `JSON` carga útil enviada a tu servidor, si proporcionaste una [**devolución de llamada**](#callback) URL. Los resultados permanecen disponibles para su recuperación durante **al menos 24 horas** después de completarse.

Con Push-Pull, puedes subir tus resultados directamente a tu [**almacenamiento en la nube**](/products/es/web-scraper-api/features/result-processing-and-storage/cloud-storage.md) (Google Cloud Storage, AWS S3, Alibaba Cloud OSS, u otro almacenamiento compatible con S3).

{% hint style="info" %}
Si prefieres no configurar un servicio para recibir notificaciones de devolución de llamada entrantes, puedes simplemente recuperar tus resultados periódicamente (*sondeo*).
{% endhint %}

También puedes explorar cómo funciona Push-Pull usando [**Postman**](/integrations/es/integraciones-de-web-scraper-api/postman.md).

## Trabajo único

### Punto de acceso

Este punto de acceso acepta solo una `consulta` o `URL` valor.

```
POST https://data.oxylabs.io/v1/queries
```

### Entrada

Proporciona los parámetros del trabajo en un payload JSON como se muestra en los ejemplos siguientes. Los ejemplos en Python y PHP incluyen comentarios para mayor claridad.

{% tabs %}
{% tab title="cURL" %}

```shell
curl --user "user:pass1" \
'https://data.oxylabs.io/v1/queries' \
-H "Content-Type: application/json" \
 -d '{"source": "ENTER_SOURCE_HERE", "url": "https://www.example.com", "geo_location": "United States", "callback_url": "https://your.callback.url", "storage_type": "s3", "storage_url": "s3://your.storage.bucket.url"}'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint


# Structure payload.
payload = {
    "source": "ENTER_SOURCE_HERE", # Source you choose e.g. "universal"
    "url": "https://www.example.com", # Check speficic source if you should use "url" or "query"
    "geo_location": "United States", # Some sources accept zip-code or cooprdinates
    #"render" : "html", # Uncomment you want to render JavaScript within the page
    #"render" : "png", # Uncomment if you want to take a screenshot of a scraped web page
    #"parse" : true, # Check what sources support parsed data
    #"callback_url": "https://your.callback.url", #required if using callback listener
    "callback_url": "https://your.callback.url",
    "storage_type": "s3", 
    "storage_url": "s3://your.storage.bucket.url"
}

# Get response.
response = requests.request(
    'POST',
    'https://data.oxylabs.io/v1/queries',
    auth=('YOUR_USERNAME', 'YOUR_PASSWORD'), #Your credentials go here
    json=payload,
)

# Print prettified response to stdout.
pprint(response.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$params = array(
    'source' => 'ENTER_SOURCE_HERE', //Source you choose e.g. "universal"
    'url' => 'https://www.example.com', // Check speficic source if you should use "url" or "query"
    'geo_location' => 'United States', //Some sources accept zip-code or cooprdinates
    //'render' : 'html', // Uncomment you want to render JavaScript within the page
    //'render' : 'png', // Uncomment if you want to take a screenshot of a scraped web page
    //'parse' : TRUE, // Check what sources support parsed data
    //'callback_url' => 'https://your.callback.url', //required if using callback listener
    'callback_url': 'https://your.callback.url',
    'storage_type' => 's3',
    'storage_url' => 's3://your.storage.bucket.url'
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://data.oxylabs.io/v1/queries");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, "YOUR_USERNAME" . ":" . "YOUR_PASSWORD"); //Your credentials go here

$headers = array();
$headers[] = "Content-Type: application/json";
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Json;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string Username = "YOUR_USERNAME";
            const string Password = "YOUR_PASSWORD";

            var parameters = new Dictionary<string, string>()
            {
                { "source", "ENTER_SOURCE_HERE" },
                { "url", "https://example.com" },
                { "geo_location", "United States" },
                { "callback_url", "https://your.callback.url" },
            };


            var client = new HttpClient();

            Uri baseUri = new Uri("https://data.oxylabs.io");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Post, "/v1/queries");
            requestMessage.Content = JsonContent.Create(parameters);

            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(System.Text.ASCIIEncoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}

```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	payload := map[string]string{
		"source": "ENTER_SOURCE_HERE",
		"url": "https://example.com",
		"geo_location": "United States",
		"callback_url": "https://your.callback.url",
	}

	jsonValue, _ := json.Marshal(payload)

	client := &http.Client{}
	request, _ := http.NewRequest("POST",
		"https://data.oxylabs.io/v1/queries",
		bytes.NewBuffer(jsonValue),
	)

	request.Header.Add("Content-type", "application/json")
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}

```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;
import org.json.JSONObject;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("source", "ENTER_SOURCE_HERE");
        jsonObject.put("url", "https://example.com");
        jsonObject.put("geo_location", "United States");
        jsonObject.put("callback_url", "https://your.callback.url");

        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        var mediaType = MediaType.parse("application/json; charset=utf-8");
        var body = RequestBody.create(jsonObject.toString(), mediaType);
        var request = new Request.Builder()
                .url("https://data.oxylabs.io/v1/queries")
                .post(body)
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            System.out.println(response.body().string());
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import fetch from 'node-fetch';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';
const body = {
  source: 'ENTER_SOURCE_HERE',
  url: 'https://www.example.com',
  geo_location: 'United States',
  callback_url: 'https://your.callback.url',
};
const response = await fetch('https://data.oxylabs.io/v1/queries', {
  method: 'post',
  body: JSON.stringify(body),
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
  }
});

console.log(await response.json());
```

{% endtab %}
{% endtabs %}

### Salida

La API responderá con un JSON que contiene la información del trabajo, similar a esto:

```json
{
  "callback_url": "https://your.callback.url",
  "client_id": 5,
  "context": [
    {
      "key": "results_language",
      "value": null
    },
    {
      "key": "safe_search",
      "value": null
    },
    {
      "key": "tbm",
      "value": null
    },
    {
      "key": "cr",
      "value": null
    },
    {
      "key": "filter",
      "value": null
    }
  ],
  "created_at": "2024-06-26 00:00:01",
  "geo_location": "United States",
  "id": "12345678900987654321",
  "limit": 10,
  "locale": null,
  "pages": 1,
  "parse": false,
  "render": null,
  "url": "https://www.example.com",
  "source": "universal",
  "start_page": 1,
  "status": "pending",
  "storage_type": "s3",
  "storage_url": "YOUR_BUCKET_NAME/12345678900987654321.json",
  "subdomain": "www",
  "updated_at": "2024-06-26 00:00:01",
  "user_agent_type": "desktop",
  "_links": [
    {
      "rel": "self",
      "href": "http://data.oxylabs.io/v1/queries/12345678900987654321",
      "method": "GET"
    },
    {
      "rel": "results",
      "href": "http://data.oxylabs.io/v1/queries/12345678900987654321/results",
      "method": "GET"
    }
  ]
}
```

### Diccionario de datos

Para descripciones detalladas de los parámetros de entrada del trabajo, consulta la tabla siguiente o revisa las páginas de documentación específicas de los scrapers que te interesen.

| Clave              | Descripción                                                                                                                                                                                                                           | Tipo         |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ |
| `created_at`       | La fecha y hora en que se creó el trabajo.                                                                                                                                                                                            | Cadena       |
| `client_id`        | El ID numérico asociado con el nombre de usuario del cliente que realiza la solicitud.                                                                                                                                                | Cadena       |
| `client_notes`     | Notas enviadas por el cliente al enviar un trabajo.                                                                                                                                                                                   | Cadena       |
| `content_encoding` | Añade este parámetro si estás descargando imágenes. Más información [**aquí**](/products/es/web-scraper-api/features/result-processing-and-storage/output-types/download-images.md)**.**                                              | Cadena       |
| `id`               | El ID único del trabajo.                                                                                                                                                                                                              | Cadena       |
| `statuses`         | El código de estado del trabajo de scraping o parsing. Puedes ver los códigos de estado descritos [**aquí**](/products/es/web-scraper-api/response-codes.md).                                                                         | Entero       |
| `status`           | El estado del trabajo. `pending` significa que el trabajo aún se está procesando. `done` significa que hemos completado el trabajo. `faulted` significa que encontramos errores al intentar completar el trabajo -- y lo abandonamos. | Cadena       |
| `subdomain`        | El subdominio del sitio web.                                                                                                                                                                                                          | Cadena       |
| `updated_at`       | La fecha y hora de la última actualización del trabajo. Para los trabajos finalizados (`status` es `done` o `faulted`), esta fecha y hora indica cuándo se finalizó el trabajo.                                                       | Cadena       |
| `links`            | La lista de enlaces relacionados con la entrada proporcionada.                                                                                                                                                                        | Arreglo JSON |
| `links`:`rel`      | El tipo de enlace. `self` La URL contiene los metadatos del trabajo, mientras que `results` la URL contiene los resultados del trabajo.                                                                                               | Cadena       |
| `links`:`href`     | La URL del recurso.                                                                                                                                                                                                                   | Cadena       |
| `links`:`method`   | El método HTTP que debe usarse para interactuar con una URL dada.                                                                                                                                                                     | Cadena       |

## Devolución de llamada&#x20;

La devolución de llamada es una `POST` solicitud que enviamos a tu máquina, informando que la tarea de extracción de datos ha finalizado y proporcionando una URL para descargar el contenido extraído. Esto significa que no necesitas [**comprobar manualmente el estado del trabajo**](#check-job-status) . Una vez que los datos estén aquí, te lo haremos saber, y todo lo que necesitas hacer ahora es [**recuperarlos**](#retrieve-job-content).

### Entrada

{% tabs %}
{% tab title="Python" %}

```python
# This is a simple Sanic web server with a route listening for callbacks on localhost:8080.
# It will print job results to stdout.
import requests
from pprint import pprint
from sanic import Sanic, response


AUTH_TUPLE = ('user', 'pass1')

app = Sanic()


# Define /job_listener endpoint that accepts POST requests.
@app.route('/job_listener', methods=['POST'])
async def job_listener(request):
    try:
        res = request.json
        links = res.get('_links', [])
        for link in links:
            if link['rel'] == 'results':
                # Sanic is async, but requests are synchronous, to fully take
                # advantage of Sanic, use aiohttp.
                res_response = requests.request(
                    method='GET',
                    url=link['href'],
                    auth=AUTH_TUPLE,
                )
                pprint(res_response.json())
                break
    except Exception as e:
        print("Listener exception: {}".format(e))
    return response.json(status=200, body={'status': 'ok'})


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8080)
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
$stdout = fopen('php://stdout', 'w');

if (isset($_POST)) {
    $result = array_merge($_POST, (array) json_decode(file_get_contents('php://input')));

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, "https://data.oxylabs.io/v1/queries/".$result['id'].'/results');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
    curl_setopt($ch, CURLOPT_USERPWD, "user" . ":" . "pass1");

    $result = curl_exec($ch);
    fwrite($stdout, $result);

    if (curl_errno($ch)) {
        echo 'Error:' . curl_error($ch);
    }
    curl_close ($ch);
}
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Net.Http;

namespace OxyApiWeb
{
    public class Callback
    {
        public Link[] _links { get; set; }
    }

    public class Link
    {
        public string rel { get; set; }
        public string href { get; set; }
    }

    public class Startup
    {
        private const string USERNAME = "YOUR_USERNAME";
        private const string PASSWORD = "YOUR_PASSWORD";

        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;

            client = new HttpClient();
        }

        public IConfiguration Configuration { get; }

        private HttpClient client;

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapPost("/job_listener", async context =>
                {
                    var callback = await System.Text.Json.JsonSerializer.DeserializeAsync<Callback>(context.Request.Body);

                    foreach (var link in callback._links)
                    {
                        if (link.rel != "results")
                        {
                            continue;
                        }

                        var requestMessage = new HttpRequestMessage(HttpMethod.Get, new Uri(link.href));

                        var authenticationString = $"{USERNAME}:{PASSWORD}";
                        var base64EncodedAuthenticationString = Convert.ToBase64String(System.Text.ASCIIEncoding.UTF8.GetBytes(authenticationString));
                        requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

                        var response = await client.SendAsync(requestMessage);
                        var contents = await response.Content.ReadAsStringAsync();

                        Console.WriteLine(contents);

                    }

                    var okMessage = new Dictionary<string, string>()
                    {
                        { "message", "ok" }
                    };

                    await System.Text.Json.JsonSerializer.SerializeAsync(context.Response.Body, okMessage);
                });
            });
        }
    }
}

```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"fmt"
	"github.com/labstack/echo/v4"
	"io/ioutil"
	"net/http"
)

const Username = "YOUR_USERNAME"
const Password = "YOUR_PASSWORD"

type Callback struct {
	Links []Link `json:"_links"`
}

type Link struct {
	Href string `json:"href"`
	Method string `json:"method"`
	Rel string `json:"rel"`
}

func main() {
	echoServer := echo.New()
	client := &http.Client{}

	echoServer.POST("/job_listener", func(context echo.Context) error {
		callback := new(Callback)
		if err := context.Bind(callback); err != nil {
			return err
		}

		for _, link := range callback.Links {
			if link.Rel != "results" {
				continue
			}

			request, _ := http.NewRequest("GET",
				link.Href,
				nil,
			)

			request.Header.Add("Content-type", "application/json")
			request.SetBasicAuth(Username, Password)
			response, _ := client.Do(request)

			responseText, _ := ioutil.ReadAll(response.Body)
			fmt.Println(string(responseText))
		}
		return context.JSON(http.StatusOK, map[string]string { "status": "ok" })
	})

	echoServer.Logger.Fatal(echoServer.Start(":8080"))
}
```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;
import com.sun.net.httpserver.HttpServer;
import org.apache.commons.io.IOUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.Objects;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        HttpServer server = null;
        try {
            server = HttpServer.create(new InetSocketAddress("0.0.0.0", 8080), 0);
        } catch (IOException exception) {
            exception.printStackTrace();
            System.exit(1);
        }

        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        server.createContext("/job_listener", exchange -> {
            var requestBody = IOUtils.toString(exchange.getRequestBody(), StandardCharsets.UTF_8);
            JSONObject requestJson = new JSONObject(requestBody);
            JSONArray links = requestJson.getJSONArray("_links");
            for (var link : links.toList()) {
                var linkMap = (Map<?, ?>)link;
                if (!Objects.equals(linkMap.get("rel"), "results")) {
                    continue;
                }

                var request = new Request.Builder()
                        .url((String) linkMap.get("href"))
                        .get()
                        .build();

                try (var response = client.newCall(request).execute()) {
                    assert response.body() != null;
                    System.out.println(response.body().string());
                } catch (Exception exception) {
                    System.out.println("Error: " + exception.getMessage());
                }
            }

            var responseJson = new JSONObject();
            responseJson.put("status", "ok");
            exchange.sendResponseHeaders(200, responseJson.toString().length());

            OutputStream responseBody = exchange.getResponseBody();
            responseBody.write(responseJson.toString().getBytes());
            responseBody.flush();
            responseBody.close();

            exchange.close();
        });
        server.setExecutor(null);
        server.start();
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import express from 'express'
import fetch from 'node-fetch';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';

const app = express();
app.use(express.json());

app.post('/job_listener', async(request, response) => {
  for (const index in request.body._links) {
    const link = request.body._links[index];
    if (link.rel !== 'results') {
      continue;
    }

    const jobResultResponse = await fetch(link.href, {
      method: 'get',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
      }
    });

    console.log(await jobResultResponse.json());
  }

  response.send({status: 'ok'});
});

app.listen(8080);
```

{% endtab %}
{% endtabs %}

### Salida

```json
{  
   "created_at":"2019-10-01 00:00:01",
   "updated_at":"2019-10-01 00:00:15",
   "locale":null,
   "client_id":163,
   "user_agent_type":"desktop",
   "source":"google_shopping_search",
   "pages":1,
   "subdomain":"www",
   "status":"done",
   "start_page":1,
   "parse":0,
   "render":null,
   "priority":0,
   "ttl":0,
   "origin":"api",
   "persist":true,
   "id":"12345678900987654321",
   "callback_url":"http://your.callback.url/",
   "query":"adidas",
   "limit":10,
   "geo_location":null,
   {...}
   "_links":[
      {  
         "href":"https://data.oxylabs.io/v1/queries/12345678900987654321",
         "method":"GET",
         "rel":"self"
      },
      {  
         "href":"https://data.oxylabs.io/v1/queries/12345678900987654321/results",
         "method":"GET",
         "rel":"results"
      }
   ],
}
```

## Comprobar estado del trabajo

Si proporcionaste una URL de callback válida al enviar tu trabajo, te notificaremos cuando se complete enviando una `JSON` carga útil a la URL de callback especificada. Esta carga útil indicará que el trabajo se ha completado y su estado se ha establecido en `done`.

Sin embargo, si enviaste un trabajo sin usar [**el servicio de callback**](#callback), puedes comprobar el estado del trabajo manualmente. Recupera la URL del `href` campo en la `rel:self` sección del mensaje de respuesta recibido después del envío del trabajo. La URL para comprobar el estado del trabajo se parecerá a la siguiente: `http://data.oxylabs.io/v1/queries/12345678900987654321`. Consultar esta URL devolverá la información del trabajo, incluido su `status`.

### Punto de acceso

```
GET https://data.oxylabs.io/v1/queries/{id}
```

### Entrada

{% tabs %}
{% tab title="cURL" %}

```bash
curl --user "user:pass1" \
'http://data.oxylabs.io/v1/queries/12345678900987654321'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint

# Obtener respuesta del endpoint de estadísticas.
response = requests.request(
    method='GET',
    url='http://data.oxylabs.io/v1/queries/12345678900987654321',
    auth=('user', 'pass1'),
)

# Imprimir la respuesta JSON formateada en stdout.
pprint(response.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "http://data.oxylabs.io/v1/queries/12345678900987654321");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_USERPWD, "user" . ":" . "pass1");

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Json;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string JobId = "12345678900987654321";
            const string Username = "YOUR_USERNAME";
            const string Password = "YOUR_PASSWORD";

            var client = new HttpClient();

            Uri baseUri = new Uri("https://data.oxylabs.io");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, $"/v1/queries/{JobId}");

            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(System.Text.ASCIIEncoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}
```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	const JobId = "12345678900987654321"
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	client := &http.Client{}
	request, _ := http.NewRequest("GET",
		fmt.Sprintf("https://data.oxylabs.io/v1/queries/%s", JobId),
		nil,
	)

	request.Header.Add("Content-type", "application/json")
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}
```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    private static final String JOB_ID = "12345678900987654321";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        var request = new Request.Builder()
                .url(String.format("https://data.oxylabs.io/v1/queries/%s", JOB_ID))
                .get()
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            System.out.println(response.body().string());
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import fetch from 'node-fetch';

const jobId = '12345678900987654321';
const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';
const response = await fetch(`https://data.oxylabs.io/v1/queries/${jobId}`, {
  method: 'get',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
  }
});

console.log(await response.json());
```

{% endtab %}
{% endtabs %}

### Salida

Al completarse el trabajo, la API responderá con la información de la consulta en formato JSON. El estado del trabajo cambiará a `done`, lo que indica que el trabajo ha terminado. Puedes recuperar el contenido consultando uno de los enlaces proporcionados. Además, la respuesta incluirá la marca temporal de la última actualización del trabajo, lo que te permitirá seguir su tiempo de procesamiento.

```json
{
    "client_id": 5,
    "context": [
        {
            "key": "results_language",
            "value": null
        },
        {
            "key": "safe_search",
            "value": null
        },
        {
            "key": "tbm",
            "value": null
        },
        {
            "key": "cr",
            "value": null
        },
        {
            "key": "filter",
            "value": null
        }
    ],
    "created_at": "2019-10-01 00:00:01",
    "geo_location": null,
    "id": "7173957294344910849",
    "limit": 10,
    "locale": null,
    "pages": 1,
    "parse": false,
    "render": null,
    "query": "adidas",
    "source": "google_shopping_search",
    "start_page": 1,
    "status": "done",
    "subdomain": "www",
    "updated_at": "2019-10-01 00:00:15",
    "user_agent_type": "desktop",
    "_links": [
        {
            "rel": "self",
            "href": "http://data.oxylabs.io/v1/queries/7173957294344910849",
            "method": "GET"
        },
        {
            "rel": "results",
            "href": "http://data.oxylabs.io/v1/queries/7173957294344910849/results",
            "method": "GET"
        },
        {
            "rel": "results-html",
            "href": "http://data.oxylabs.io/v1/queries/7173957294344910849/results?type=raw",
            "method": "GET"
        },
        {
            "rel": "results-parsed",
            "href": "http://data.oxylabs.io/v1/queries/7173957294344910849/results?type=parsed",
            "method": "GET"
        },
        {
            "rel": "results-parsed",
            "href": "http://data.oxylabs.io/v1/queries/7173957294344910849/results?type=png",
            "method": "GET"
        }
    ]
}
```

## Valores de estado

<table><thead><tr><th width="150">Parámetro</th><th>Descripción</th></tr></thead><tbody><tr><td><code>pending</code></td><td>El trabajo todavía se está procesando y no se ha completado.</td></tr><tr><td><code>done</code></td><td>El trabajo está completado. Puedes recuperar el resultado consultando la URL proporcionada en el <code>href</code> campo bajo la <code>rel:results</code> sección, por ejemplo: <code>http://data.oxylabs.io/v1/queries/12345678900987654321/results</code>.</td></tr><tr><td><code>faulted</code></td><td>Hubo un problema con el trabajo y no pudimos completarlo. No se te cobrará por ningún <code>faulted</code> trabajo.</td></tr></tbody></table>

## Recuperar contenido del trabajo

Una vez que el trabajo esté listo para recuperarse, puedes usar la URL proporcionada en la respuesta bajo la `rel:results` sección. La URL se verá así: `http://data.oxylabs.io/v1/queries/7173957294344910849/results`.

### Puntos finales

Puedes recuperar diferentes tipos de resultado usando los siguientes puntos finales:

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results
```

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=raw
```

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=parsed
```

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=png
```

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=xhr
```

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=markdown
```

También puedes recuperar [múltiples tipos de resultado](/products/es/web-scraper-api/features/result-processing-and-storage/output-types/multi-format-output.md) en una sola respuesta, por ejemplo:

```
GET https://data.oxylabs.io/v1/queries/{job_id}/results?type=parsed,raw
```

### Entrada

A continuación se muestran ejemplos de código que demuestran cómo usar el `/results` endpoint:

{% tabs %}
{% tab title="cURL" %}

```shell
curl --user "user:pass1" \
'http://data.oxylabs.io/v1/queries/12345678900987654321/results'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint

# Obtener respuesta del endpoint de estadísticas.
response = requests.request(
    method='GET',
    url='http://data.oxylabs.io/v1/queries/12345678900987654321/results',
    auth=('user', 'pass1'),
)

# Imprimir la respuesta JSON formateada en stdout.
pprint(response.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "http://data.oxylabs.io/v1/queries/12345678900987654321/results");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_USERPWD, "user" . ":" . "pass1");

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net.Http;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string JobId = "12345678900987654321";
            const string Username = "YOUR_USERNAME";
            const string Password = "YOUR_PASSWORD";

            var client = new HttpClient();

            Uri baseUri = new Uri("https://data.oxylabs.io");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, $"/v1/queries/{JobId}/results");

            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(System.Text.ASCIIEncoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}

```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	const JobId = "12345678900987654321"
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	client := &http.Client{}
	request, _ := http.NewRequest("GET",
		fmt.Sprintf("https://data.oxylabs.io/v1/queries/%s/results", JobId),
		nil,
	)

	request.Header.Add("Content-type", "application/json")
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}
```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    private static final String JOB_ID = "12345678900987654321";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        var request = new Request.Builder()
                .url(String.format("https://data.oxylabs.io/v1/queries/%s/results", JOB_ID))
                .get()
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            System.out.println(response.body().string());
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import fetch from 'node-fetch';

const jobId = '12345678900987654321';
const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';
const response = await fetch(`https://data.oxylabs.io/v1/queries/${jobId}/results`, {
  method: 'get',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
  }
});

console.log(await response.json());
```

{% endtab %}
{% endtabs %}

### Salida

Esta tabla explica los tipos de resultado predeterminados y otros disponibles según los encabezados incluidos en la carga útil de la solicitud de la API.

| Parámetro de renderizado | Parámetro de análisis | Parámetro XHR | Salida predeterminada | Salida disponible |
| ------------------------ | --------------------- | ------------- | --------------------- | ----------------- |
| -                        | -                     | -             | html                  | html              |
| `html`                   | -                     | -             | html                  | html              |
| `html`                   | -                     | `true`        | xhr                   | html, xhr         |
| `html`                   | `true`                | `true`        | parsed                | html, xhr, parsed |
| `png`                    | -                     | -             | png                   | html, png         |
| -                        | `true`                | -             | parsed                | html, parsed      |
| `html`                   | `true`                | -             | parsed                | html, parsed      |
| `png`                    | `true`                | -             | png                   | html, parsed, png |

A continuación se muestra una respuesta de ejemplo del `/results` endpoint:

```json
{
  "results": [
    {
      "content": "<!doctype html><html>
        CONTENT      
      </html>",
      "created_at": "2019-10-01 00:00:01",
      "updated_at": "2019-10-01 00:00:15",
      "page": 1,
      "url": "https://www.google.com/search?q=adidas&hl=en&gl=US",
      "job_id": "12345678900987654321",
      "status_code": 200
    }
  ]
}
```

Los resultados pueden recuperarse automáticamente sin comprobar periódicamente el estado del trabajo configurando [**Devolución de llamada**](#callback) el servicio de callback. Para hacerlo, especifica la URL de un servidor que pueda aceptar solicitudes HTTP(S) entrantes al enviar un trabajo. Cuando nuestro sistema complete el trabajo, enviará `POST` una carga útil JSON a la URL proporcionada, y el servicio de Callback descargará los resultados como se describe en la [**Ejemplo de implementación de Callback**](#callback).

## Consulta por lotes

Scraper APIs admite enviar hasta 5.000 `consulta` o `url` valores de parámetro en una sola solicitud por lotes.&#x20;

### Punto de acceso

```
POST https://data.oxylabs.io/v1/queries/batch
```

El sistema procesará cada `consulta` o `url` enviado como un trabajo separado. Si proporcionas una URL de callback, recibirás una llamada separada para cada palabra clave. De lo contrario, nuestra respuesta inicial contendrá trabajo `id`s para todas las palabras clave. Por ejemplo, si enviaste 50 palabras clave, devolveremos 50 trabajo `id`s.

{% hint style="info" %}
**IMPORTANTE:** Con `/batch` solo puedes enviar listas de `consulta`o `url`valores de parámetros (dependiendo de la `source` que uses). Todos los demás parámetros deben tener valores singulares.
{% endhint %}

### Entrada

Necesitas enviar los parámetros de consulta como una carga útil JSON. Así es como envías un trabajo por lotes:

{% tabs %}
{% tab title="cURL" %}

```shell
curl --user "user:pass1" \
'https://data.oxylabs.io/v1/queries/batch' \
-H 'Content-Type: application/json' \
-d '@keywords.json'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
import json
from pprint import pprint


# Obtener la carga útil del archivo.
with open('keywords.json', 'r') as f:
    payload = json.loads(f.read())

response = requests.request(
    'POST',
    'https://data.oxylabs.io/v1/queries/batch',
    auth=('user', 'pass1'),
    json=payload,
)

# Imprimir la respuesta formateada.
pprint(response.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$paramsFile = file_get_contents(realpath("keywords.json"));
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://data.oxylabs.io/v1/queries/batch");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $paramsFile);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, "user" . ":" . "pass1");

$headers = array();
$headers[] = "Content-Type: application/json";
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.IO;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string Username = "YOUR_USERNAME";
            const string Password = "YOUR_PASSWORD";


            var content = File.ReadAllText(@"C:\path\to\keywords.json");
                
            var client = new HttpClient();

            var requestMessage = new HttpRequestMessage(HttpMethod.Post, new Uri("https://data.oxylabs.io/v1/queries/batch"));
            requestMessage.Content = new StringContent(content, Encoding.UTF8, "application/json");


            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(ASCIIEncoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}
```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	content, err := os.ReadFile("keywords.json")
	if err != nil {
		panic(err)
	}

	client := &http.Client{}
	request, _ := http.NewRequest("POST",
		"https://data.oxylabs.io/v1/queries/batch",
		bytes.NewBuffer(content),
	)

	request.Header.Add("Content-type", "application/json")
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}
```

{% endtab %}

{% tab title="Java" %}

```java
import okhttp3.*;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        Path filePath = Path.of("/path/to/keywords.json");
        String jsonContent = null;
        try {
            jsonContent = Files.readString(filePath);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        var mediaType = MediaType.parse("application/json; charset=utf-8");
        var body = RequestBody.create(jsonContent, mediaType);
        var request = new Request.Builder()
                .url("https://data.oxylabs.io/v1/queries/batch")
                .post(body)
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            System.out.println(response.body().string());
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import fetch from 'node-fetch';
import fs from 'fs'

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';

const payload = fs.readFileSync('keywords.json').toString();

const response = await fetch('https://data.oxylabs.io/v1/queries/batch', {
  method: 'post',
  body: payload,
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
  }
});

console.log(await response.json());
```

{% endtab %}
{% endtabs %}

Es posible que notes que el ejemplo de código anterior no explica cómo debe formatearse la carga útil JSON y hace referencia a un archivo JSON ya preparado. A continuación se muestra el contenido de `keywords.json` archivo, que contiene múltiples `consulta` valores de parámetro:

```json
{  
   "query":[  
      "adidas",
      "nike",
      "reebok"
   ],
   "source": "google_shopping_search",
   "callback_url": "https://your.callback.url"
}
```

...y aquí hay un `keywords.json` archivo de entrada por lotes, que contiene varias URLs:

```json
{  
   "url":[  
      "https://example.com/url1.html",
      "https://example.com/url2.html",
      "https://example.com/url3.html"
   ],
   "source": "universal",
   "callback_url": "https://your.callback.url"
}
```

### Salida

La API responderá con un objeto JSON, que contiene la información del trabajo para cada trabajo creado. La respuesta será similar a esta:

```json
{
  "queries": [
    {
      "callback_url": "https://your.callback.url",
      {...}
      "created_at": "2019-10-01 00:00:01",
      "id": "12345678900987654321",
      {...}
      "query": "adidas",
      "source": "google_shopping_search",
      {...}
          "rel": "results",
          "href": "http://data.oxylabs.io/v1/queries/12345678900987654321/results",
          "method": "GET"
        }
      ]
    },
    {
      "callback_url": "https://your.callback.url",
      {...}
      "created_at": "2019-10-01 00:00:01",
      "id": "12345678901234567890",
      {...}
      "query": "nike",
      "source": "google_shopping_search",
      {...}
          "rel": "results",
          "href": "http://data.oxylabs.io/v1/queries/12345678901234567890/results",
          "method": "GET"
        }
      ]
    },
    {
      "callback_url": "https://your.callback.url",
      {...}
      "created_at": "2019-10-01 00:00:01",
      "id": "01234567899876543210",
	  {...}
      "query": "reebok",
      "source": "google_shopping_search",
	  {...}
          "rel": "results",
          "href": "http://data.oxylabs.io/v1/queries/01234567899876543210/results",
          "method": "GET"
        }
      ]
    }
  ]
}
```

## Obtener lista de direcciones IP del notificador

Es posible que quieras poner en la lista blanca las IPs que te envían mensajes de callback o obtener la lista de estas IPs para otros fines. Puedes hacerlo `GET`este endpoint:&#x20;

### Punto de acceso

```
GET https://data.oxylabs.io/v1/info/callbacker_ips
```

### Entrada

Los ejemplos de código a continuación muestran cómo puedes acceder al `/callbacker_ips` endpoint:

{% tabs %}
{% tab title="cURL" %}

```bash
curl --user "user:pass1" \
'https://data.oxylabs.io/v1/info/callbacker_ips'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint

# Obtén la respuesta del endpoint de IPs de callback.
response = requests.request(
    method='GET',
    url='https://data.oxylabs.io/v1/info/callbacker_ips',
    auth=('user', 'pass1'),
)

# Imprimir la respuesta JSON formateada en stdout.
pprint(response.json())
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://data.oxylabs.io/v1/info/callbacker_ips");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");
curl_setopt($ch, CURLOPT_USERPWD, "user" . ":" . "pass1");

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);
?>
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net.Http;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string Username = "YOUR_USERNAME";
            const string Password = "YOUR_PASSWORD";

            var client = new HttpClient();

            Uri baseUri = new Uri("https://data.oxylabs.io");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, "/v1/info/callbacker_ips");

            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(System.Text.ASCIIEncoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}
```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	client := &http.Client{}
	request, _ := http.NewRequest("GET",
		"https://data.oxylabs.io/v1/info/callbacker_ips",
		nil,
	)

	request.Header.Add("Content-type", "application/json")
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}
```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .build();

        var request = new Request.Builder()
                .url("https://data.oxylabs.io/v1/info/callbacker_ips")
                .get()
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            System.out.println(response.body().string());
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="Node.js" %}

```shell
import fetch from 'node-fetch';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';
const response = await fetch('https://data.oxylabs.io/v1/info/callbacker_ips', {
  method: 'get',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Basic ' + Buffer.from(`${username}:${password}`).toString('base64'),
  }
});

console.log(await response.json());
```

{% endtab %}
{% endtabs %}

### Salida

La API devolverá la lista de IPs que realizan solicitudes de callback a tu sistema:

```json
{
    "ips": [
        "x.x.x.x",
        "y.y.y.y"
    ]
}
```

## Scheduler

Scheduler es un servicio que puedes usar para programar trabajos de scraping recurrentes.&#x20;

Amplía la funcionalidad de la integración Push-Pull y se usa mejor junto con la [**integración en la nube**](/products/es/web-scraper-api/features/result-processing-and-storage/cloud-storage.md) funcionalidad.&#x20;

Visita esta página para aprender a usar la función Scheduler:

{% content-ref url="/pages/6747f0c229023ce8f8bd1f628917a02e8975721e" %}
[Scheduler](/products/es/web-scraper-api/features/scheduler.md)
{% endcontent-ref %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://developers.oxylabs.io/products/es/web-scraper-api/integration-methods/push-pull.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.