Posting large JSON to my WCF Service return bad request? - wcf

Question

I have a WCF service that accept JSON String Entity and this is the method:
UPDATE: I solved the problem as this wasn't related to the WCF service, but to the GSON formatting that I am using because is not formating a special character like "ù" and the server refuse to accept this character.
<WebInvoke(UriTemplate:="UpdateUser", ResponseFormat:=WebMessageFormat.Json, RequestFormat:=WebMessageFormat.Json, Method:="POST", BodyStyle:=WebMessageBodyStyle.WrappedRequest)> _
Public Function UpdateUser(user As String) As Stream Implements IService1.UpdateUser
End Function
If I try to post trough JAVA HttpClient a JSON String with the code below and with short JSON string all work fine, but if the size of the JSON string is bigger, then the IIS 7.5 response with:
-MODULE_SET_RESPONSE_ERROR_STATUS
ModuleName ManagedPipelineHandler
Notification 128
HttpStatus 400
HttpReason Bad Request
HttpSubStatus 0
ErrorCode 0
ConfigExceptionInfo
Notification
EXECUTE_REQUEST_HANDLER
ErrorCode
Operazione completata. (0x0)
I tried already with MaxReceivedMessageSize and other size settings in the Web.Config but without success.
This is my Web.Config file
<services>
<service name="WBVoice4Facebook.Service1" behaviorConfiguration="ServiceBehaviour">
<endpoint address="" binding="webHttpBinding" bindingConfiguration="StreamedRequestWebBinding" contract="WBVoice4Facebook.IService1" behaviorConfiguration="web">
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehaviour">
<dataContractSerializer maxItemsInObjectGraph="2147483646"/>
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
<behavior name="">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="web">
<dataContractSerializer maxItemsInObjectGraph="2147483646" />
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
<bindings>
<netMsmqBinding>
<binding name="NewBinding0">
<security>
<transport msmqAuthenticationMode="None" msmqProtectionLevel="None" />
</security>
</binding>
</netMsmqBinding>
<webHttpBinding>
<binding name="StreamedRequestWebBinding"
openTimeout="10:15:00"
receiveTimeout="10:15:00"
sendTimeout="10:15:00"
bypassProxyOnLocal="true"
hostNameComparisonMode="WeakWildcard"
maxBufferSize="2147483647"
maxBufferPoolSize="2147483647"
maxReceivedMessageSize="2147483647"
transferMode="Streamed"
useDefaultWebProxy="false">
<readerQuotas maxStringContentLength="2147483647" maxArrayLength="2147483647" />
<security mode="TransportCredentialOnly">
<transport clientCredentialType="InheritedFromHost" />
</security>
</binding>
</webHttpBinding>
</bindings>

Answer 1

There is also a limit in asp.net Runtime.
More info here