获取NLOG发出JSON适当的头？ [英] Getting NLog to send out JSON with proper headers?

问题描述

尝试使用NLOG发送JSON编码的注销我们的C＃应用​​程序，将它们转储到CouchDB的。但是，使用网络的目标，我似乎无法找到一个方法来正确设置Content-Type头;和CouchDB的不会有任何与我的输入，否则。

CouchDB是外的开箱，目前NLOG配置：

 < n日志的xmlns =http://www.nlog-project.org/schemas/NLog.xsd
的xmlns：XSI =http://www.w3.org/2001/XMLSchema-例如throwExceptions =真> 
<变量名=FileLayout值='{日期：$ {的longdate}，级别：$ {水平}，消息：$ {消息}}'/> ; 
<靶标GT; 
<目标名称=日志文的xsi：type =网络的地址=http://127.0.0.1:5984/logger/布局=$ {} FileLayout/> 
< /目标> 
<规则与GT; 
<记录器名称=*定义的MinLevel =跟踪中的writeTo =日志文/> 
< /规则> 
< / n日志> 
  

和原始的HTTP（主机名编辑）：

  POST http://127.0.0.1:5984/logger/ HTTP / 1.1 
主机：127.0.0.1:5984 
的Content-Length：221 
期望：100-继续
 
 {日期：2011-08-12 13：38：06.4603，水平：信息，消息：{积压： 0，too_busy：0，io_threads：1000年，线程：32766，messages_processed：0}，ProcessName：foobar的} 
  

解决方案

综观 HttpNetworkSender 的来源，我没有看到一个明显的方式在内容类型传递在的WebRequest 。

我认为你将不得不创建一个基于 NetworkTarget 它使用一个自定义的 HttpNetworkSender ，并包括配置来设置内容类型上的的WebRequest 恰如其分。

Trying to use NLog to send JSON-encoded logs out of our C# app, to dump them into CouchDB. However, using the Network target, I can't seem to find a way to set the Content-Type header properly; and CouchDB won't have anything to do with my input otherwise.

CouchDB is out-of-the-box, Current NLog config:

<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" throwExceptions="true">
    <variable name="FileLayout" value='{ "date":"${longdate}","level":"${level}","message":${message}}' />
    <targets>
      <target name="logfile" xsi:type="Network" address="http://127.0.0.1:5984/logger/" layout="${FileLayout}" />
    </targets>
    <rules>
      <logger name="*" minlevel="Trace" writeTo="logfile" />
    </rules>
  </nlog>

And the raw HTTP (hostnames edited):

POST http://127.0.0.1:5984/logger/ HTTP/1.1
Host: 127.0.0.1:5984
Content-Length: 221
Expect: 100-continue

{ "date":"2011-08-12 13:38:06.4603","level":"Info","message":{"backlog":0, "too_busy":0, "io_threads":1000, "threads":32766, "messages_processed":0}, "ProcessName": "foobar"}

解决方案

Looking at the HttpNetworkSender source, I don't see an obvious way to pass in a content type to the WebRequest.

I think you will have to create a custom target based on the NetworkTarget which uses a custom HttpNetworkSender, and include config to set the content-type on the WebRequest Appropriately.

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