# Walmart

使用 网页爬虫API，您可以抓取并解析各种类型的 **Walmart** 页面；下面是所有支持的爬虫及其各自 `source` 值。

| 来源                | 说明                                                                                                                                       | 专用解析器                   |
| ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ----------------------- |
| `walmart_search`  | [**搜索页面**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/targets/walmart/search) 用于您选择的搜索词。     | 是的。                     |
| `walmart_product` | [**产品页面**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/targets/walmart/product) 用于您选择的产品 ID。  | 是的。                     |
| `walmart`         | 提交任意 Walmart [**URL**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/targets/walmart/url) 您选择的。 | 限制为 **搜索** 和 **商品** 页面。 |

## 快速开始

**创建您的 API 用户凭据**：在 [**Oxylabs 控制面板**](https://dashboard.oxylabs.io/en/registration) 注册免费试用或购买产品以创建您的 API 用户凭据（`USERNAME` 和 `PASSWORD`).

{% hint style="warning" %}
如果您的账户需要不止一个 API 用户，请联系我方的 [**客户支持**](mailto:support@oxylabs.io) 或通过我们的 24/7 在线聊天支持留言。
{% endhint %}

## 请求示例

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

```shell
curl 'https://realtime.oxylabs.io/v1/queries' \
--user 'USERNAME:PASSWORD' \
-H 'Content-Type: application/json' \
-d '{
        "source": "walmart_search", 
        "query": "iphone", 
        "parse": true
    }'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint


# 结构化负载。
payload = {
    'source': 'walmart_search',
    'query': 'iphone',
    'parse': True,
}

# 获取响应。
response = requests.request(
    'POST',
    'https://realtime.oxylabs.io/v1/queries',
    auth=('USERNAME', 'PASSWORD'),
    json=payload,
)

# 与返回作业状态和结果 URL 的响应不同，这将返回
# 带有结果的 JSON 响应。
pprint(response.json())
```

{% endtab %}

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

```javascript
const https = require("https");

const username = "USERNAME";
const password = "PASSWORD";
const body = {
    source: "walmart_search",
    query: "iphone",
    parse: true,
};

const options = {
    hostname: "realtime.oxylabs.io",
    path: "/v1/queries",
    method: "POST",
    headers: {
        "Content-Type": "application/json",
        Authorization:
            "Basic " + Buffer.from(`${username}:${password}`).toString("base64"),
    },
};

const request = https.request(options, (response) => {
    let data = "";

    response.on("data", (chunk) => {
        data += chunk;
    });

    response.on("end", () => {
        const responseData = JSON.parse(data);
        console.log(JSON.stringify(responseData, null, 2));
    });
});

request.on("error", (error) => {
    console.error("Error:", error);
});

request.write(JSON.stringify(body));
request.end();
```

{% endtab %}

{% tab title="HTTP" %}

```http
# 您提交的整个字符串必须进行 URL 编码。

https://realtime.oxylabs.io/v1/queries?source=walmart_search&query=iphone&parse=true&access_token=12345abcde
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$params = array(
    'source' => 'walmart_search',
    'query' => 'iphone',
    'parse' => true
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://realtime.oxylabs.io/v1/queries");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, "USERNAME" . ":" . "PASSWORD");

$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="Golang" %}

```go
package main

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

func main() {
	const Username = "USERNAME"
	const Password = "PASSWORD"

	payload := map[string]interface{}{
		"source":       "walmart_search",
		"query":          "iphone",
		"parse":        true,
	}

	jsonValue, _ := json.Marshal(payload)

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

	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

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

```

{% 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 = "USERNAME";
            const string Password = "PASSWORD";

            var parameters = new {
                source = "walmart_search",
                query = "iphone",
                parse = true
            };

            var client = new HttpClient();

            Uri baseUri = new Uri("https://realtime.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="Java" %}

```java
package org.example;

import okhttp3.*;
import org.json.JSONObject;
import java.util.concurrent.TimeUnit;

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

    public void run() {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("source", "walmart_search");
        jsonObject.put("query", "iphone");
        jsonObject.put("parse", true);

        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)
                .readTimeout(180, TimeUnit.SECONDS)
                .build();

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

        try (var response = client.newCall(request).execute()) {
            if (response.body() != null) {
                try (var responseBody = response.body()) {
                    System.out.println(responseBody.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="JSON" %}

```json
{
    "source": "walmart_search", 
    "query": "iphone", 
    "parse": true
}
```

{% endtab %}
{% endtabs %}

我们在示例中使用同步的 [**Realtime**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/integration-methods/realtime) 集成方法。如果您希望使用 [**Proxy Endpoint**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/integration-methods/proxy-endpoint) 或异步的 [**Push-Pull**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/integration-methods/push-pull) 集成，请参阅 [**集成方法**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/integration-methods) 部分。

可选地，您可以包含附加参数，例如 `user_agent_type`, `parse`, `render` 以及更多用于自定义您的抓取请求。阅读更多：


---

# Agent Instructions: 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:

```
GET https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/targets/walmart.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.