# 创建订单

## 创建订单

### [Buy API (Postman)](https://www.postman.com/tronsave/tronsave/request/q6ml25s/3)

**API Method:** 

<mark style="color:orange;">`POST`</mark>` ``https://api.tronsave.io/v0/buy-energy`

速率限制 (Rate limit): 每1秒15个请求。

**请求参数 (Request params):**

<table><thead><tr><th width="178.33333333333331">域</th><th width="72">地点</th><th width="171">类型</th><th width="92">必需</th><th>描述</th></tr></thead><tbody><tr><td>resource_type</td><td>body</td><td>string</td><td>true</td><td>"ENERGY"</td></tr><tr><td>unit_price</td><td>body</td><td>number</td><td>true</td><td>填写价格以Sun为单位</td></tr><tr><td>allow_partial_fill</td><td>body</td><td>boolean</td><td>true</td><td>允许订单部分匹配或整体匹配。</td></tr><tr><td>target_address</td><td>body</td><td>string</td><td>true</td><td>资源接收者的地址。</td></tr><tr><td>duration_millisec</td><td>body</td><td>number</td><td>true</td><td>购买资源的持续时间, 时间单位等于毫秒</td></tr><tr><td>tx_id</td><td>body</td><td>string</td><td>true</td><td>从第2步的已签名交易获取的交易ID</td></tr><tr><td>signed_tx</td><td>body</td><td>SignedTransaction</td><td>true</td><td>已签名交易，请注意它是第2步中的JSON对象响应 (<a href="get-signed-transaction">signed_tx ->步骤2</a> )</td></tr></tbody></table>

**请求参数示例 (Request params example):**

```java
{
    "resource_type": "ENERGY",
    "unit_price": 45,
    "allow_partial_fill": true,
    "target_address": "TM6ZeEgpefyGWeMLuzSbfqTGkPv8Z6Jm4X",
    "duration_millisec": 259200000,
    "tx_id": "446eed36e31249b98b201db2e81a3825b185f1a3d8b2fea348b24fc021e58e0d",
    "signed_tx": {
      "visible": false,
      "txID": "446eed36e31249b98b201db2e81a3825b185f1a3d8b2fea348b24fc021e58e0d",
      "raw_data": {
        "contract": [
          {
            "parameter": {
              "value": {
                "amount": 13500000,
                "owner_address": "417a0d868d1418c9038584af1252f85d486502eec0",
                "to_address": "41055756f33f419278d9ea059bd2b21120e6add748"
              },
              "type_url": "type.googleapis.com/protocol.TransferContract"
            },
            "type": "TransferContract"
          }
        ],
        "ref_block_bytes": "0713",
        "ref_block_hash": "6c5f7686f4176139",
        "expiration": 1691465106000,
        "timestamp": 1691465046758
      },
      "raw_data_hex": "0a02071322086c5f7686f417613940d084b5999d315a68080112640a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412330a15417a0d868d1418c9038584af1252f85d486502eec0121541055756f33f419278d9ea059bd2b21120e6add74818e0fcb70670e6b5b1999d31",
      "signature": ["xxxxxxxxx"]
    }
}
```

**回应 (Responses):**

```java
{
    "message": "651d2306e55c073f6ca0992e" //order_id
}
```