如何從API管理策略中的響應主體中獲取價值？

Question

我目前正在Azure API管理中使用policys，而我在提取從response-body返回的值時感興趣。

<send-one-way-request mode="new"> 
    <set-url>http://requestb.in/xje199xj</set-url> 
    <set-method>POST</set-method> 
    <set-header name="Content-Type" exists-action="override"> 
    <value>application/json</value> 
    </set-header> 
     <set-body>@{ 

      //JObject or string? 
      string response = context.Response.Body.As<string>(preserveContent: true); 
      //something here.. 
      } 
     </set-body> 
    </send-one-way-request> 

的迴應是這樣的：

"getBookableResourcesResponse": { "getBookableResourcesResult": { "hasError": false, "errorCode": 0, "BookableResource": [ { "resourceCode": "TRA", "description": "Trailer", "group": "F", "subGroup": "C", "category": "R", "dialogType": "CARGO", "orgCode": "DECK", "length": 14, "taraWeight": "7000", "grossWeight": "25001", "AddResource": [ { "resourceCode": "EXPFIN", "description": "Export Finland", "dialogType": "UNDEFINED", "amount": "0", "ticketType": "", "orgCode": "EXPFIN", "required": "false" }.....

我想從「resourceCode」屬性返回的值這就是，在這種情況下，「TRA」，然後創建一個新的JObject至於我可以發送給我的Azure功能。

{ 「resourceCode」： 「valueFromResponseBody」 }

Answer 1

My solution: 



<send-one-way-request mode="new"> 
      <set-url></set-url> 
      <set-method>POST</set-method> 
      <set-header name="Content-Type" exists-action="override"> 
       <value>application/json</value> 
      </set-header> 
      <set-body>@{ 

       string xml = context.Response.Body.As<string>(preserveContent: true); 
       XmlDocument doc = new XmlDocument(); 
       doc.LoadXml(xml); 

      XmlNodeList elemList = doc.DocumentElement.GetElementsByTagName("ResourceCode");   

      string allResources = string.Empty; 
      foreach (XmlNode item in elemList) 
      { 
       if (item.InnerText == "TRA" || item.InnerText == "CONT20" || item.InnerText == "CONT23" || item.InnerText == "CONT26" || item.InnerText == "CONT30" || item.InnerText == "CONT40" || item.InnerText == "CONT45" || item.InnerText == "TRUCK"|| item.InnerText == "VAN" || item.InnerText == "CAMP" || item.InnerText == "CAR") 
       { 
        allResources += item.InnerText + ","; 

       }       
      } 

      allResources = allResources.Substring(0, allResources.Length - 1); 

      return new JObject(new JProperty("resourceCode", allResources)).ToString(); 

      }</set-body> 
     </send-one-way-request> 

Answer 2

而不是

string response = context.Response.Body.As<string>(preserveContent: true); 

嘗試：

var response = context.Response.Body.As<JObject>(preserveContent: true); 

，將返回Json.NET JObject（http://www.newtonsoft.com/json/help/html/T_Newtonsoft_Json_Linq_JObject.htm）你以後這可以用來瀏覽你的回覆。