Agfdhyk

When POSTing a request which can contain one or more files (as base64 string) I get this error response:

ERROR 2018-11-22 09:54:18,244 [13 ] Mvc.ExceptionHandling.AbpExceptionFilter - The remote server returned an unexpected response: (413) Request Entity Too Large.
System.ServiceModel.ProtocolException: The remote server returned an unexpected response: (413) Request Entity Too Large.
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object outs, IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannelProxy.TaskCreator.<>c__DisplayClass1_0.b__0(IAsyncResult asyncResult)
--- End of stack trace from previous location where exception was thrown ---
at ...

I have searched on how to resolve this but I get redirected to WCF solutions all the time.

I have added the following to the web.config of my WebApi project but it doesn't seem to make a difference.

<configuration>

  <system.webServer>

    ....

    <asp>

      <limits maxRequestEntityAllowed="2147483648"/>

    </asp>

    <serverRuntime uploadReadAheadSize="2147483647" />

  </system.webServer>

</configuration>

Can anyone help me or point me to the right resource?

There are two limits you need to change. Kestrel and IIS.

You can change the MaxRequestBodySize limit of Kestrel in Program.cs.

public static IWebHost BuildWebHost(string args)

{

    return WebHost.CreateDefaultBuilder(args)

        .UseStartup<Startup>()

        .UseKestrel(options =>

        {

            options.Limits.MaxRequestBodySize = long.MaxValue;

        })

        .UseIISIntegration()

        .Build();

}

And the limit for IIS can be changed in web.config:

<?xml version="1.0" encoding="utf-8"?>

<configuration>

  <system.webServer>

    <security>

      <requestFiltering>

        <requestLimits maxAllowedContentLength="2147483648" />

      </requestFiltering>

    </security>

  </system.webServer>

</configuration>

I think, you may need to modify your web.config then add "maxRequestLength" and "maxAllowedContentLength"

<system.web>

    <compilation debug="true" targetFramework="4.5.2"/>

    <httpRuntime targetFramework="4.5.2" maxRequestLength="50240" executionTimeout="600"/> <!-- in Kb  -->

  </system.web>

  <system.webServer>

    <security>

      <requestFiltering>

         <requestLimits maxAllowedContentLength="52428800" /> <!-- in byte (50 Mb) -->                                               

      </requestFiltering>

   </security>

Default limit size 65 KB in WCF. Could you try to add below field inside of your binding configuration.
<binding maxReceivedMessageSize="10485760">