> ## Documentation Index
> Fetch the complete documentation index at: https://docs.benzinga.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ニュースストリーム

> Benzinga のリアルタイムニュース記事および更新情報。

<div id="overview">
  ## 概要
</div>

リアルタイムのニュース配信を購読し、新しい記事の公開や既存の記事の更新を即座に通知として受け取ることができます。

<div id="key-features">
  ### 主な機能
</div>

* **リアルタイム更新**: ニュース記事が公開または更新されると、即座に通知を受け取れます
* **銘柄によるフィルタリング**: 特定の ticker や ISIN を購読し、関連するニュースだけを受信できます
* **包括的なデータ**: 記事の content、著者情報、画像、および関連する証券情報を提供します
* **アクションの追跡**: 記事の作成・更新・削除のタイミングを監視できます

<div id="use-cases">
  ### ユースケース
</div>

* 特定の証券向けのリアルタイムニュースフィードを構築する
* ポートフォリオ銘柄に関する速報ニュースのアラートを作成する
* 複数のティッカーにまたがるニュースを集約する
* 取引シグナル向けにニュースのセンチメントと件数を追跡する

<div id="quick-start">
  ## クイックスタート
</div>

上部のインタラクティブなウェブソケットテスターを使用して接続し、ストリームをリアルタイムにテストしてください。

<div id="connection-url">
  ### 接続 URL
</div>

```
wss://api.benzinga.com/api/v1/news/stream?token=YOUR_TOKEN
```

<div id="query-parameters">
  ### クエリパラメータ
</div>

| Parameter  | Required | Description                                       |
| ---------- | -------- | ------------------------------------------------- |
| `token`    | Yes      | Benzinga ウェブソケット API 用のトークン (bz.production\*\*\*) |
| `tickers`  | No       | ティッカーシンボルのカンマ区切りリスト (例: `AAPL,MSFT`)              |
| `channels` | No       | フィルタリングに使用するニュースチャンネルのカンマ区切りリスト                   |

<div id="message-example">
  ## メッセージの例
</div>

```json theme={null}
{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "api_version": "websocket/v1",
  "kind": "news",
  "data": {
    "action": "created",
    "id": 36444586,
    "timestamp": "2024-01-01T13:35:14Z",
    "content": {
      "id": 36444586,
      "author": "Benzinga Insights",
      "created": "Mon, 01 Jan 2024 13:35:14 -0400",
      "updated": "Mon, 01 Jan 2024 13:35:15 -0400",
      "title": "10 Information Technology Stocks With Whale Alerts In Today's Session",
      "teaser": "",
      "body": "Full article content...",
      "url": "https://www.benzinga.com/markets/options/24/01/36444586/...",
      "image": [
        {
          "size": "thumb",
          "url": "https://cdn.benzinga.com/files/imagecache/250x187xUP/..."
        }
      ],
      "channels": [
        {
          "name": "Options"
        }
      ],
      "stocks": [
        {
          "name": "AAPL",
          "cusip": "037833100",
          "isin": "US0378331005",
          "exchange": "NASDAQ"
        }
      ],
      "tags": [
        {
          "name": "BZI-AUOA"
        }
      ]
    }
  }
}
```

<div id="message-actions">
  ### メッセージアクション
</div>

| アクション                 | 説明            |
| --------------------- | ------------- |
| `created` / `Created` | 新しい記事が公開されたとき |
| `updated` / `Updated` | 既存の記事が更新されたとき |
| `deleted` / `Deleted` | 記事が削除されたとき    |

<div id="interactive-commands">
  ## インタラクティブコマンド
</div>

| Command  | Description                      |
| -------- | -------------------------------- |
| `ping`   | 接続を維持します（`pong` で応答します）          |
| `replay` | 直近のキャッシュ済みメッセージを最大 100 件まで再送信します |

<div id="best-practices">
  ## ベストプラクティス
</div>

* **重複排除**: 重複したメッセージを処理しないように `id` フィールドを使用する
* **ハートビート**: 接続を維持するために 30〜60 秒ごとに `ping` コマンドを送信する
* **エラー処理**: 指数バックオフを用いた再接続ロジックを実装する
* **フィルタリング**: 帯域幅を削減するために ticker/チャネルのフィルターを使用する


## AsyncAPI

````yaml asyncapi/news-stream.yml news
id: news
title: News
description: Send action commands; receive real-time news updates
servers:
  - id: production
    protocol: wss
    host: api.benzinga.com/api/v1/news
    bindings: []
    variables: []
address: stream
parameters: []
bindings: []
operations:
  - &ref_2
    id: news.publish
    title: News.publish
    description: Send commands to the server
    type: receive
    messages:
      - &ref_4
        id: publish
        contentType: text/plain
        payload:
          - type: string
            enum: &ref_0
              - ping
              - replay
            description: Send action commands (ping, replay)
            x-parser-schema-id: <anonymous-schema-1>
            name: publish
        headers: []
        jsonPayloadSchema:
          type: string
          enum: *ref_0
          description: Action to perform (ping for heartbeat, replay for message history)
          x-parser-schema-id: <anonymous-schema-1>
        title: Publish
        description: Send action commands (ping, replay)
        example: '{}'
        bindings: []
        extensions:
          - id: x-parser-unique-object-id
            value: publish
          - id: x-parser-message-name
            value: ActionRequest
    bindings: []
    extensions: &ref_1
      - id: x-parser-unique-object-id
        value: news
  - &ref_3
    id: news.subscribe
    title: News.subscribe
    description: Receive real-time news updates
    type: send
    messages:
      - &ref_5
        id: subscribe
        contentType: application/json
        payload:
          - name: News Update
            description: A news article or update message
            type: object
            properties:
              - name: id
                type: string
                description: Unique message identifier
                required: false
              - name: api_version
                type: string
                description: API version
                required: false
              - name: kind
                type: string
                description: Message type
                required: false
              - name: data
                type: object
                required: false
                properties:
                  - name: action
                    type: string
                    description: Action type
                    enumValues:
                      - created
                      - updated
                      - deleted
                    required: false
                  - name: id
                    type: integer
                    description: News article ID
                    required: false
                  - name: timestamp
                    type: string
                    description: Message timestamp
                    required: false
                  - name: content
                    type: object
                    required: false
                    properties:
                      - name: id
                        type: integer
                        description: Article ID
                        required: false
                      - name: author
                        type: string
                        description: Article author
                        required: false
                      - name: created
                        type: string
                        description: Article creation timestamp
                        required: false
                      - name: updated
                        type: string
                        description: Article update timestamp
                        required: false
                      - name: title
                        type: string
                        description: Article headline
                        required: false
                      - name: teaser
                        type: string
                        description: Article teaser text
                        required: false
                      - name: body
                        type: string
                        description: Full article body
                        required: false
                      - name: url
                        type: string
                        description: Article URL
                        required: false
                      - name: image
                        type: array
                        required: false
                        properties:
                          - name: size
                            type: string
                            required: false
                          - name: url
                            type: string
                            required: false
                      - name: channels
                        type: array
                        required: false
                        properties:
                          - name: name
                            type: string
                            required: false
                      - name: stocks
                        type: array
                        required: false
                        properties:
                          - name: name
                            type: string
                            required: false
                          - name: cusip
                            type: string
                            required: false
                          - name: isin
                            type: string
                            required: false
                          - name: exchange
                            type: string
                            required: false
                      - name: tags
                        type: array
                        required: false
                        properties:
                          - name: name
                            type: string
                            required: false
        headers: []
        jsonPayloadSchema:
          type: object
          properties:
            id:
              type: string
              description: Unique message identifier
              x-parser-schema-id: <anonymous-schema-3>
            api_version:
              type: string
              description: API version
              example: websocket/v1
              x-parser-schema-id: <anonymous-schema-4>
            kind:
              type: string
              description: Message type
              example: news
              x-parser-schema-id: <anonymous-schema-5>
            data:
              type: object
              properties:
                action:
                  type: string
                  description: Action type
                  enum:
                    - created
                    - updated
                    - deleted
                  x-parser-schema-id: <anonymous-schema-7>
                id:
                  type: integer
                  description: News article ID
                  x-parser-schema-id: <anonymous-schema-8>
                timestamp:
                  type: string
                  format: date-time
                  description: Message timestamp
                  x-parser-schema-id: <anonymous-schema-9>
                content:
                  type: object
                  properties:
                    id:
                      type: integer
                      description: Article ID
                      x-parser-schema-id: <anonymous-schema-11>
                    author:
                      type: string
                      description: Article author
                      x-parser-schema-id: <anonymous-schema-12>
                    created:
                      type: string
                      description: Article creation timestamp
                      x-parser-schema-id: <anonymous-schema-13>
                    updated:
                      type: string
                      description: Article update timestamp
                      x-parser-schema-id: <anonymous-schema-14>
                    title:
                      type: string
                      description: Article headline
                      x-parser-schema-id: <anonymous-schema-15>
                    teaser:
                      type: string
                      description: Article teaser text
                      x-parser-schema-id: <anonymous-schema-16>
                    body:
                      type: string
                      description: Full article body
                      x-parser-schema-id: <anonymous-schema-17>
                    url:
                      type: string
                      description: Article URL
                      x-parser-schema-id: <anonymous-schema-18>
                    image:
                      type: array
                      items:
                        type: object
                        properties:
                          size:
                            type: string
                            x-parser-schema-id: <anonymous-schema-21>
                          url:
                            type: string
                            x-parser-schema-id: <anonymous-schema-22>
                        x-parser-schema-id: <anonymous-schema-20>
                      x-parser-schema-id: <anonymous-schema-19>
                    channels:
                      type: array
                      items:
                        type: object
                        properties:
                          name:
                            type: string
                            x-parser-schema-id: <anonymous-schema-25>
                        x-parser-schema-id: <anonymous-schema-24>
                      x-parser-schema-id: <anonymous-schema-23>
                    stocks:
                      type: array
                      items:
                        type: object
                        properties:
                          name:
                            type: string
                            x-parser-schema-id: <anonymous-schema-28>
                          cusip:
                            type: string
                            x-parser-schema-id: <anonymous-schema-29>
                          isin:
                            type: string
                            x-parser-schema-id: <anonymous-schema-30>
                          exchange:
                            type: string
                            x-parser-schema-id: <anonymous-schema-31>
                        x-parser-schema-id: <anonymous-schema-27>
                      x-parser-schema-id: <anonymous-schema-26>
                    tags:
                      type: array
                      items:
                        type: object
                        properties:
                          name:
                            type: string
                            x-parser-schema-id: <anonymous-schema-34>
                        x-parser-schema-id: <anonymous-schema-33>
                      x-parser-schema-id: <anonymous-schema-32>
                  x-parser-schema-id: <anonymous-schema-10>
              x-parser-schema-id: <anonymous-schema-6>
          x-parser-schema-id: <anonymous-schema-2>
        title: News Update
        description: A news article or update message
        example: No examples found
        bindings: []
        extensions:
          - id: x-parser-unique-object-id
            value: subscribe
    bindings: []
    extensions: *ref_1
sendOperations:
  - *ref_2
receiveOperations:
  - *ref_3
sendMessages:
  - *ref_4
receiveMessages:
  - *ref_5
extensions:
  - id: x-parser-unique-object-id
    value: news
securitySchemes:
  - id: tokenAuth
    name: token
    type: httpApiKey
    description: Benzinga WebSocket API token (bz.production***)
    in: query
    extensions: []

````