Transports and Interfaces: Siebel Enterprise Application Integration > EAI HTTP Transport >

Sending and Receiving Messages with the EAI HTTP Transport

You can use the EAI HTTP Transport to send and receive messages. The following procedure illustrates how you can use EAI HTTP Transport with the SendReceive method to query employee information from the Siebel Database, send it out, echo it using the Workflow Utilities ECHO service, and send it back to the workflow to write the response back to a file.

To create a workflow process to send and receive messages

1. Create a named subsystem HTTPsendreceive_conn for subsystem HTTPSubSys using the following lines:

   HTTPLoginMethod=GET

   HTTPLoginURLTemplate="http://smthpa12.siebel.com:16007/eai_enu/start.swe?SWEExtCmd=ExecuteLogin&SWEExtSource=MyEcho&UserName=SADMIN&Password=db2"

   HTTPLogoffMethod=GET

   HTTPLogoffURLTemplate="http://smthpa12.siebel.com:16007/eai_enu/start.swe?SWEExtCmd=Logoff"

   HTTPRequestMethod=POST

   HTTPRequestURLTemplate="http://smthpa12.siebel.com:16007/eai_enu/start.swe"

2. Create a named subsystem MyEchoSubsys for subsystem EAITransportDataHandlingSubsys using the following lines:

   DispatchService="Workflow Utilities"

   DispatchMethod=ECHO

3. In your eai.cfg file, add the following line in the [HTTP Services] section:

   MyEcho = MyEchoSubsys

4. Log in to the Siebel client as an administrator connected to the server.
5. From the Site Map choose Administration - Business Process > Workflow Processes.
6. Create a new workflow process as shown below.
7. Select the Process Properties tab and add the following properties.

   Name	Data Type	In/Out	Default String
   Employee Message	Hierarchy	In/Out	-
   Employee XML	Binary	In/Out	-
   Error Code	String	In/Out	-
   Error Message	String	In/Out	-
   Object Id	String	In/Out	1-548
   Response	Binary	In/Out	-

8. Retrieve employee message using the EAI Siebel Adapter with the Query method to query the information from the database using the following input and output arguments.

   Input Arguments	Type	Value	Property Name	Property Data Type
   Output Integration Object Name	Literal	Sample Employee	-	-
   Object Id	Process Property	-	Object Id	Sting

   Property Name	Type	Value	Output Argument
   Employee Message	Output Argument	-	Siebel Message

9. Convert the message to XML using the EAI XML Converter with the Integration Object Hierarchy to XML Document method and the following input and output arguments to convert the message.

   Input Arguments	Type	Value	Property Name	Property Data Type
   Siebel Message	Process Property	-	Employee Message	Hierarchy

   Property Name	Type	Value	Output Argument
   Employee XML	Output Argument	-	XML Document

10. Send and receive the converted XML message using the EAI HTTP Transport with the Send and Receive Response method and the following input and output arguments.

    Input Arguments	Type	Value	Property Name	Property Data Type
    Message Text	Process Property	-	Employee XML	String
    Connection Subsystem	Literal	HTTPsendreceive_conn	-	-

    Property Name	Type	Value	Output Argument
    Response	Output Argument	-	Message Text

11. Write the message to the file using the EAI File Transport with the Send method and the following input arguments.

    Input Arguments	Type	Value	Property Name	Property Data Type
    Message Text	Process Property	-	Response	Binary
    File Name	Literal	C:\SendRec.txt	-	-

12. Save your workflow process and test it using the Workflow Simulator.