Question

I should implemented to OData service that will be able generate feed in streaming fashion
i.e. – client should start read first entries of the feed when service still generate next entries.

Is such behavior possible with WCF Data Services ?

For now I cannot do such behavior – service firstly generate entire feed in buffer and only then start
transfer it to client but such behavior doesn’t fit for me due to the is too large for generating in buffer
it doesn’t contain BLOB properties just very many rows so implementation of IDataServiceMetadataProvider won’t help.

Answer 1

I was be able to resolve this problem just by allowing WCF streaming – specifing transferMode=”Streamed”:

<system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
  <services>
    <service name="ODataDemo.OdataDemoDataService">
      <endpoint bindingConfiguration="msgSize" address="" binding="webHttpBinding" contract="System.Data.Services.IRequestHandler" />
    </service>
  </services>
  <bindings>
    <webHttpBinding>       
      <binding name="msgSize" transferMode="Streamed" />
    </webHttpBinding>
  </bindings>
</system.serviceModel>