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500 Internal server Issue when making calls between RESTful services

i am using HttpClient call to make requests between the RESTful service calls .
I am migrating my code from MSMQ to RESTful calls to make calls between the RESTful services.
i have developed around 7 RESTful services which internally call each other for updating their respective Databases .
Now ., the common issue i am facing is when i deploy all these services and try to test end point of a service, i am getting 500 internal server error which i understand is due to the internal call failure to other service .

So , now i want to know is there any way where i can make such error handling more specific and get to know which internal service call failed ?
Thanks

Ryan Chong

This works for me as I got similar issues in debugging RESTful web service calls:

1. Try to configure something like below in your web.config:

Under section: system.serviceModel , add:

    <behaviors>
      <serviceBehaviors>
        <behavior name="debug">
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>

    <services>
      <service name="your.services.yourclass" behaviorConfiguration="debug" />
    </services>
    
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
    <standardEndpoints>
      <webHttpEndpoint>        
        <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="false"/>
      </webHttpEndpoint>
    </standardEndpoints>

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2. Use some logger class to create the logs in your codes.

3. Additionally, in your web method, you may need to do a try catch and then output it for debugging.

Vrik22

ASKER

Thanks Ryan, i have already implemented config in that way and i have maintained a Logging class, but still when i try catch , i dont see exact way to catch the exception . I see InnerException as null .

Ryan Chong

try catch a general exception and debug accordingly? like:

try {
  //your codes here...
}
catch (Exception e)
            {
                logger.Debug(e.Source + ":" + e.Message + ":" + e.StackTrace);
                myClassOutput o = new myClassOutput();
                o.UniqueID = 0;
                o.ErrorMessage = "Your Error Message..";
                o.ReturnValue = 0;
                String json = JsonConvert.SerializeObject(o);
                return WebOperationContext.Current.CreateTextResponse(json, "application/json; charset=utf-8", Encoding.UTF8);
            }

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Vrik22

ASKER

I am using C# .NET .i think from RESTful perspective apart from logging we need to debug locally individually check the services and resolve them.