# 元数据
您可以通过提供一个 **YouTube 视频 ID** 到 `youtube_metadata` 源来搜索 YouTube 上的视频、频道、播放列表或电影。
{% hint style="warning" %}
请注意， `parse` 参数设置为 `true` 是必需的。 `渲染` 参数不被允许。
{% endhint %}
### 请求示例
以下示例演示如何检索 YouTube 视频的元数据。
{% tabs %}
{% tab title="cURL" %}
```bash
curl 'https://realtime.oxylabs.io/v1/queries' \
--user 'USERNAME:PASSWORD' \
-H 'Content-Type: application/json' \
-d '{
"source": "youtube_metadata",
"query": "tIgIF5lve8U",
"parse": true
}'
```
{% endtab %}
{% tab title="Python" %}
```python
import requests
from pprint import pprint
# 构建负载。
payload = {
'source': 'youtube_metadata',
'query': 'tIgIF5lve8U',
'parse': true
}
# 获取响应。
response = requests.request(
'POST',
'https://realtime.oxylabs.io/v1/queries',
auth=('user', 'pass1'),
json=payload,
)
# 打印包含结果的 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: "youtube_metadata",
query: "tIgIF5lve8U",
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
https://realtime.oxylabs.io/v1/queries?source=youtube_metadata&query=tIgIF5lve8U&parse=true&access_token=12345abcde
```
{% endtab %}
{% tab title="PHP" %}
```php
'youtube_metadata',
'query' => 'tIgIF5lve8U',
'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"
// 使用新的 youtube_metadata 查询定义负载。
payload := map[string]interface{}{
"source": "youtube_metadata",
"query": "tIgIF5lve8U",
"parse": true,
}
jsonValue, err := json.Marshal(payload)
if err != nil {
fmt.Println("Error marshalling JSON:", err)
return
}
client := &http.Client{}
request, err := http.NewRequest("POST", "https://realtime.oxylabs.io/v1/queries", bytes.NewBuffer(jsonValue))
if err != nil {
fmt.Println("Error creating request:", err)
return
}
request.SetBasicAuth(Username, Password)
request.Header.Set("Content-Type", "application/json")
response, err := client.Do(request)
if err != nil {
fmt.Println("Error making request:", err)
return
}
defer response.Body.Close()
responseText, err := ioutil.ReadAll(response.Body)
if err != nil {
fmt.Println("Error reading response:", err)
return
}
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.Text;
using System.Threading.Tasks;
namespace OxyApi
{
class Program
{
static async Task Main()
{
const string Username = "USERNAME";
const string Password = "PASSWORD";
var parameters = new
{
source = "youtube_metadata",
query = "tIgIF5lve8U",
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 = $"{Username}:{Password}";
var base64EncodedAuthenticationString = Convert.ToBase64String(Encoding.UTF8.GetBytes(authenticationString));
requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);
try
{
var response = await client.SendAsync(requestMessage);
response.EnsureSuccessStatusCode();
var contents = await response.Content.ReadAsStringAsync();
Console.WriteLine(contents);
}
catch (HttpRequestException e)
{
Console.WriteLine($"Request error: {e.Message}");
}
}
}
}
```
{% endtab %}
{% tab title="Java" %}
```java
package org.example;
import okhttp3.*;
import org.json.JSONArray;
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() {
// 构造用于 youtube_metadata 请求的 JSON 负载
JSONObject jsonObject = new JSONObject();
jsonObject.put("source", "youtube_metadata");
jsonObject.put("query", "tIgIF5lve8U");
jsonObject.put("parse", true);
JSONArray contextArray = new JSONArray();
contextArray.put(new JSONObject().put("key", "language_code").put("value", "en"));
contextArray.put(new JSONObject().put("key", "transcript_origin").put("value", "uploader_provided"));
jsonObject.put("context", contextArray);
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": "youtube_metadata",
"query": "tIgIF5lve8U",
"parse": true
}
```
{% endtab %}
{% endtabs %}
我们在示例中使用同步的 [**Realtime**](https://developers.oxylabs.io/scraper-apis/web-scraper-api/integration-methods/realtime) 集成方法。如果您想使用 [**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 [**Integration Methods**](https://developers.oxylabs.io/documentation/cn/zhua-qu-jie-jue-fang-an/web-scraper-api/integration-methods) 部分。
{% file src="" %}
## 请求参数值
### 通用
| 参数 | 描述 | 默认值 |
|---|
| source | 设置爬虫。 | youtube_metadata |
| 查询 | YouTube 视频 ID。 | - |
| parse | 设置为时启用解析 true. | - |
callback_url | 您的回调端点的 URL。 更多信息. | - |
– 必填参数
---
# 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/youtube/youtube-metadata.md?ask=
```
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.