ript type=\"application/javascript\"> bmTrackViewableChange=function(e){mraid.addEventListener(\"viewableChange\",function(){console.log(\"empty viewableChange.....event\")}),e&&bmSendImpression()},bmSubscribeViewableEvent=function(){bmSendFill(),bmSubscribeClickEvent(),mraid.addEventListener(\"ready\",function(){console.log(\"empty ready event\")}),mraid.isViewable()?bmSendImpression():(mraid.addEventListener(\"viewableChange\",function(){}),mraid.addEventListener(\"viewableChange\",bmTrackViewableChange))},bmSubscribeClickEvent=function(){window.addEventListener(\"click\",function(e){bmSendClick()},!1)};bmAddContextToUrl(),\"loading\"===mraid.getState()?(mraid.addEventListener(\"ready\",function(){}),mraid.addEventListener(\"ready\",bmSubscribeViewableEvent)):bmSubscribeViewableEvent();\n",
"adomain": ["viaplay.fi"],
"bundle": "com.unityexample.game",
"iurl": "https://secure-datacenter.dsp.com/cr?id=12345678",
"cid": "1234",
"crid": "12345678",
"cat": ["IAB3-12", "IAB3-8", "IAB21-2", "IAB10-9", "IAB3", "NEX3-101", "IAB3-11", "IAB3-10", "NEX3-102", "IAB3-5", "IAB3-6"],
"attr": [],
"h": 320,
"w": 480,
"appcategory": ["Games"],
"appsubcategory": ["Adventure", "Action"],
"ext": {
"appname": "Example Game",
"storeurl": "https://play.google.com/store/apps/details?id=com.unityexample.game",
"crtype": "PLAYABLE"
}
}],
"seat": "1234"
}],
"bidid": "CHYr9b0ODI8OGLpedtfCpuCH",
"cur": "USD",
}
```
### VAST 响应##v-a-s-t
```json
{
"id": "7jrUifdKuw3HDIR9dbqDVJ",
"bidid": "CHYr9b0ODI8OGLpedtfCpuCH",
"cur": "USD",
"seatbid": [{
"seat": "Example Partner",
"bid": [{
"impid": "1",
"adomain": ["examplegame.com"],
"iurl": "https://secure-datacenter.dsp.com/cr?id=12345678",
"crid": "12345678",
"cid": "1234",
"adid": "87654321",
"cat": ["IAB9-25", "IAB9-25"],
"bundle": "com.unityexample.game",
"attr": [],
"h": 568,
"w": 320,
"id": "unrtb-com.unityexample.game-320x568-1ADJE5D8721B3-453S-9DYA-B0AVD69AA1A1",
"price": 15.04,
"nurl": "https://secure-datacenter.dsp.com/ab?e=wqT_3FL5gUgASotCQAAAQZjkxNjQ.\\u0026referrer=play.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.any.game\\u0026pp=${AUCTION_PRICE}\\u0026label=nurl",
"burl": "https://secure-datacenter.dsp.com/ab?e=wqT_3FL5gUgASotCQAAAQZjkxNjQ.\\u0026referrer=play.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.any.game\\u0026pp=${AUCTION_PRICE}\\u0026pplabel=burl",
"adm": "
yourdsp00:00:15",
"ext": {
"advertisername": "One Cool Advertiser",
"appid": "1234567890123",
"appname": "Example Game",
"storeurl": "https://itunes.apple.com/us/app/trash-dash/id1198634425?mt=8",
"length": 15,
"crtype": "VAST"
"clickablevideo": 1,
"deeplinking": 1,
"cta_text": "Shop Now",
"skadn": {
"ext": {
"ask": 2
},
"productpageid": "00d00d1e-ff93-67fc-653f-8ggd1eeghcdf",
"skoverlay": {
"show": 1,
"position": 0,
"dismissable": 0,
"video_delay": 5,
}
}
}
}]
}]
}
```
## 无广告返回 (NBR)##nbrs
对于无出价，Unity Exchange 支持多种响应类型。使用这些响应之一来明确表示您希望不对广告展示出价对于我们来说很重要，否则该响应可能会被认为是超时错误。
| **响应** | **示例** |
| --------------------- | ----------------------------------------------- |
| 无内容 | `HTTP 204 No Content` |
| 空 JSON 对象 | `{}` |
| 格式正确的广告返回（带有或不带有原因代码） | `{"id": "1234567890", "seatbid": {}, "nbr": 2}` |
| 其他 | * `200 OK`
* `302 Redirect` |
如需了解更多信息，请参阅 [OpenRTB 规范](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-API-Specification-Version-2-5-FINAL.pdf)的**第 7.1 节**。
### NBR 原因代码##nbr-codes
| **值** | **描述** |
| ----- | ------------- |
| `0` | 未知错误 |
| `1` | 技术错误 |
| `2` | 无效请求 |
| `3` | 已知的网络蜘蛛 |
| `4` | 疑似非人为流量 |
| `5` | 云端、数据中心或代理 IP |
| `6` | 不受支持的设备 |
| `7` | 屏蔽的发布者或站点 |
| `8` | 不匹配的用户 |
## 价格加密处理##price-obfuscation
发送 `nURL` 时，推荐的最佳实践是用 `${AUCTION_PRICE:BF}` 值实施加密处理，以确保敏感价格信息在客户端的安全。这是可选功能。
### 方法##methodology
为了对数据进行加密处理，Unity 在 ECB 模式下使用 Blowfish，将 PKCS5 填充（8 字节块大小的 PKCS7 填充）应用于输入数据。然后对数据进行 base64 URL 编码，使二进制数据在 URL 中有效。可根据需要索取源代码以进行故障排除。
```http title="Example pseudo-code"
base64_URLEncode(blowfish_ecb_encrypt_pkcs5_padding(plaintext))
```
| **参数** | **示例值** |
| ---------------------------- | ------------------ |
| key | `"encryption_key"` |
| plaintext | `"10.20"` |
| encrypted、base64 URL encoded | `"z5eznndAkpE="` |
> **Note:**
>
> Unity 在实际生产环境中使用不同的加密密钥。
### 解密##decryption
要解密数据，对输入字符串应进行 base64 URL 解码。然后，从加密的数据中移除 PKCS5 填充，再逆向处理 Blowfish ECB 加密。
```http title="Example pseudo-code"
blowfish_ecb_decrypt_pkcs5_padding(base64_URLDecode(encodedtext))
```