Bindings and Behaviours --Fundamentals of WCF

Bindings:

       This describes about how to communicate with service.

      For an instance Consider a scenario say, I am creating a service that has to be used by two type of client. One of the clients will access SOAP using http and other client will access Binary using TCP. How it can be done? With Web service it is very difficult to achieve, but in WCF it’s just we need to add extra endpoint in the configuration file

<system.serviceModel>

    <services>

      <service name="MathService"

        BehaviorConfiguration="MathServiceBehavior">

      <endpoint address="http://localhost:8090/MyService/MathService.svc"

        Contract="IMathService" binding="wsHttpBinding"/>

<endpoint address="net.tcp://localhost:8080/MyService/MathService.svc"

Contract="IMathService"    binding="netTcpBinding"/>

      </service>

    </services>

    <Behaviors>

      <ServiceBehaviors>

        <behavior name="MathServiceBehavior">

          <serviceMetadata httpGetEnabled="True"/>

          <serviceDebug includeExceptionDetailInFaults="true" />

        </behavior>

      </serviceBehaviors>

    </behaviors>

  </system.serviceModel>

      In above instance common behaviors affect all endpoints globally, service behaviors affect only service-related aspects, endpoint behaviors affect only endpoint-related properties, and operation-level behaviors affect particular operations.

Behavior:

  In the below configuration information, I have mentioned the Behavior at Service level. In the service behavior I have mention the serviceMetadata node with attribute httpGetEnabled='true'. This attribute will specifies the publication of the service metadata. Similarly we can add more behavior to the service.

<system.serviceModel>

    <services>

      <service name="MathService"

        BehaviorConfiguration="MathServiceBehavior">

        <endpoint address="" contract="IMathService"

          binding="wsHttpBinding"/>

      </service>

    </services>

    <Behaviors>

      <ServiceBehaviors>

        <behavior name="MathServiceBehavior">

          <serviceMetadata httpGetEnabled="True"/>

          <serviceDebug includeExceptionDetailInFaults="true" />

        </behavior>

      </serviceBehaviors>

    </behaviors>

  </system.serviceModel> 

Note:

     Application can be controlled either through coding, configuring or through combination of both. Specification mention in the configuration can also be overwritten in code.

   </behavior>

      </serviceBehaviors>

    </behaviors>

  </system.serviceModel>

      In above instance common behaviors affect all endpoints globally, service behaviors affect only service-related aspects, endpoint behaviors affect only endpoint-related properties, and operation-level behaviors affect particular operations.