Request Entity Too Large

The "Request Entity Too Large" error is a common issue faced by developers and users when dealing with file uploads and large data submissions. This blog post explores the causes behind this error and provides practical solutions to overcome it.

To fix the error you have to go to web config and add following section under node system.webserver

 <security>
	<requestFiltering>
		<requestLimits maxAllowedContentLength="60000000" />
	</requestFiltering>
 </security>

and you have to also add

  <httpRuntime targetFramework="4.7.2" maxRequestLength="60000000" />

So, you can change the request length value to more larger value in case you have large file . This will support file up to 55Mb . So the complete web config may look like this

<system.web>
    <compilation debug="true" targetFramework="4.7.2" />
    <httpRuntime targetFramework="4.7.2" maxRequestLength="60000000" />
  </system.web>
  <system.webServer>
	  <security>
		  <requestFiltering>
			  <requestLimits maxAllowedContentLength="60000000" />
		  </requestFiltering>
	  </security>
    <handlers>
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <remove name="OPTIONSVerbHandler" />
      <remove name="TRACEVerbHandler" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
  </system.webServer>

After adding this now run the application and perform the same steps. This time you will not face error Status Code 413 Request Entity Too Large in Asp.Net MVC.