ASP.NET Core request body capturing erases the body

Reported here by @brezaie.

Reproducer also included in the comment - copying here:

[HttpPost("send")]
public JsonResult Send([FromBody] BaseReportFilter<SendMessageFilter> filter)
{
	//Do something
	return new JsonResult("");
}


public class BaseReportFilter<T>
{
    public T ReportFilter { get; set; }
}

public class SendMessageFilter{
	public string SenderApplicationCode { get; set; }
	public string MediaType { get; set; }
	public string Body { get; set; }
	public List<string> Recipients { get; set; }
}

//appsettings.json:
"ElasticApm": {
    "ServerUrls": "http://localhost:8200",
    "ServiceName": "ServiceName",
    "CaptureHeaders": true,
    "CaptureBody": "all",
    "CaptureBodyContentTypes": "application/x-www-form-urlencoded*, text/*, application/json*, application/xml*",
    "LogLevel": "Info",
    "StackTraceLimit": -1
  }

"CaptureBodyContentTypes": "application/x-www-form-urlencoded*, text/*, application/json*, application/xml*",

Without agent the filter parameter is populated, once the agent is activated it became null.

[gregkalapos]

I’m running a version from my computer because this broken my production environment. Yes… Yes… I need to evaluate it first… ^^

I’m very sorry about that! To be fair: this feature is off by default and you could immediately recover by turning the feature off, right? Or do I miss something? Not that I want to make this sound like a non-issue - it was indeed an important fix-, but I want to make sure I see the impact of this correctly.

The release is out: https://github.com/elastic/apm-agent-dotnet/releases/tag/1.1.2

Version 1.1.2 packages include the fix. Also updated on nuget.org.

[minbyulcat]

This works fine if I comment out request.Body = initialBody in ExtractRequestBody method in RequestExtentions.cs. I hope this helps solve the problem.