Access WCF webservice using POSTMAN

Step 1: Create one WCF Service Application and add the below line for OperationContract

 [WebInvoke(Method = "POST",BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Json)]

Step 2: Add the below script in web.config file.

<system.serviceModel>
    <services>
      <service behaviorConfiguration="Default" name="WcfService1.Service1">
        <endpoint address="web" behaviorConfiguration="webBehavior" binding="webHttpBinding" contract="WcfService1.IService1" />
        <endpoint address="ws" binding="wsHttpBinding" bindingConfiguration="wsBehavior" contract="WcfService1.IService1" />
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
        <behavior name="webBehavior">
          <webHttp />
          <!--<enableWebScript/>-->
        </behavior>
      </endpointBehaviors>
      <serviceBehaviors>
        <behavior name="Default">
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <wsHttpBinding>
        <binding name="wsBehavior">
          <security mode="None" >
            <transport clientCredentialType="None"/>
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true"/>
  </system.serviceModel>

Step 3: Run the web service(in visual studio) and Copy the Service URL

Step 4: Add the parameters(ref the below screenshot) in Postman and send the request and you will get the successful response

Cheers, 😃 and enjoy your life.