# eth\_sendRawTransaction v2

### 介紹

Fast模式基於BlockRazor的全球高性能網絡實現交易最低延遲上鏈，適合對交易上鏈速度存在極致要求的用戶。相比[Send RawTx](/tc/transaction-submission/fast/bsc/fast-tx.md) ，发往`eth_sendRawTransaction`的交易不會通過mempool廣播，在確保速度的同時具備隱私性。

{% hint style="info" %}
`eth_sendRawTransaction`不和訂閱計劃綁定，但每筆交易中需要包含轉賬至0x9D70AC39166ca154307a93fa6b595CF7962fe8e5的tip，金額至少為0.000025 BNB 或 Transaction Fee 的5%
{% endhint %}

與[eth\_sendRawTransaction](/tc/transaction-submission/fast/bsc/eth_sendrawtransaction.md)相比，`eth_sendRawTransaction v2`提供了一種更精簡、更迅速的交易提交途徑。

* 繞過 CORS 預檢： 它消除了通常由 OPTIONS 預檢請求所引起的延遲（大約 50-100 毫秒）。
* 純文本而非 JSON： 採用簡單的純文本傳輸，避免了與解析 JSON 相關的計算負擔。此外，由此產生的較小數據包尺寸有助於縮短網路傳輸時間並降低成本。

### 端點

{% tabs %}
{% tab title="通用域名" %}

```
http://bsc-fast.blockrazor.io/v2/sendRawTransaction
```

{% endtab %}

{% tab title="地理域名" %}

<table><thead><tr><th width="124.109375">地區</th><th>域名</th></tr></thead><tbody><tr><td>Frankfurt</td><td>http://frankfurt.bsc-fast.blockrazor.io/v2/sendRawTransaction</td></tr><tr><td>Japan</td><td>http://japan.bsc-fast.blockrazor.io/v2/sendRawTransaction</td></tr><tr><td>Virginia</td><td>http://virginia.bsc-fast.blockrazor.io/v2/sendRawTransaction</td></tr></tbody></table>
{% endtab %}
{% endtabs %}

### 限流

`eth_sendRawTransaction v2`不和訂閱計劃綁定，限流默認統一為10 TPS，如需提升TPS，請於我們聯繫

### 請求示例

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

```bash
curl -X POST 'bsc-fast.blockrazor.io/v2/sendRawTransaction?auth=<auth_token>'
-H "Content-Type: text/plain" \
-d "<raw_tx>"
```

{% endtab %}
{% endtabs %}

{% hint style="info" %}
注意：

* 認證 (auth) 參數必須以 URI 參數的形式填入URL
* 請求中唯一允許的header是 `Content-Type: text/plain`
  {% endhint %}

### 返回示例

**正常**

```json
{
	"code": 0,
	"message": "success",
	"data": {
		"txHash": "0xd2ebb523f400dd33ebf946a1280426196eed72c9a63b7e1734dd6f8e2f5a81dc"
	}
}
```

**異常**

```json
{
	"code": -32600,
	"message": "auth token is invalid",
	"data": null
}
```

### Keep Alive

請發送 POST 請求到健康檢查端點以保持連線活躍，建議每隔10s請求一次，請求示例如下：

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

```bash
curl -X POST 'http://bsc-fast.blockrazor.io/health' \
-H "Content-Type: text/plain" \
-d ""
```

{% endtab %}
{% endtabs %}


---

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```
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```

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.

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