Run the ProgramREST Web Service

Create a Debug Configuration

1. In the COBOL Explorer, click the ProgramREST project.
2. From the main menu, click Run > Debug Configurations.
3. In the left pane, right-click COBOL Enterprise Server; then select New from the context menu.
4. At the very top of the right pane, type ProgramREST into the Name field.
5. On the General tab click the Browse button that corresponds to the Connection and Server fields.
6. Select ESREST; then click OK.
   Note: If the ESREST enterprise server instance is the only instance defined in Enterprise Server, these fields are completed for you.
7. Under Debugging type, click the Web Service tab.

   This shows that all debug Web services are invoked by a request from the client.

8. Click Apply; then click Debug.
9. Answer Yes to any prompts to open views or perspectives.
10. In the Debug view, you should now see an entry for debugging ProgramREST [COBOL Enterprise Server].

Set Breakpoints

You want to be able to see when the client program hands off control to the service running in Enterprise Server. Because the program hands off control at two points in its execution, first to run the MakeAppt operation, and second to run the CheckAppt operation, you set a breakpoint at each hand-off point in the code so you can step through the program.

The code that calls the service is contained in the ProgramREST-proxy.cbl file:

call "InvokeService02"

It appears twice in the program. You want to set a breakpoint just before each of these call statements.

1. From the COBOL Explorer, expand ProgramREST > COBOL Programs > client.
2. Double-click ProgramREST-proxy.cbl. This places the source code into the COBOL editor.
3. Press Ctrl+F to search for the following code:

   move 256 to wsc-srvc-faultcode-len

4. Place your mouse pointer in the left-most column at that line of code and double-click to set a breakpoint.
5. Search for the next instance of:

   move 256 to wsc-srvc-faultcode-len

   and set another breakpoint.

Run the COBOL Client

1. From the COBOL Explorer, expand ProgramREST > COBOL Programs > client.
2. Right-click ProgramREST-app.cbl; then select Debug As > COBOL Application from the context menu.
3. Answer Yes to any prompts to open views or perspectives.

   This places an entry into the Debug view for the client application.

4. In the Debug view, right-click the bottom-most entry; then select Resume.
5. The client invokes a console named runm, and waits for input. Complete the fields as follows to set an appointment slot:

   Service Address	leave blank
   Username	leave blank
   Password	leave blank
   Operation	1
   lnk_customer_name	Benton Riley
   lnk_consultant_id	8706
   lnk_date.lnk_yyyy	2525
   lnk_date.lnk_mm	1
   lnk_date.lnk_dd	1
   lnk_time_slot	5

   The client application then resumes execution, and pauses on the move 256 to wsc-srvc-faultcode-len statement.

6. Switch back to the Debug view.
7. Press F6 multiple times to step through the code until you have stepped just past the call "InvokeService02" statement.
8. On the Debug view, expand entries under all COBOL Thread entries. You should see that the deployed schedule application is now being accessed from Enterprise Server.
9. Press F8 to resume and terminate execution.

Rerun the COBOL Client

Here you rerun the client, selecting the other operation to see that the appointment has been made.

1. In the Debug view, right-click the ProgramREST-app.dll entry marked as <terminated>; then select Relaunch from the context menu.
2. In the Debug view, right-click the bottom-most entry; then select Resume.
3. Complete the runm fields as follows:

   Service Address	leave blank
   Username	leave blank
   Password	leave blank
   Operation	2
   lnk_customer_name	Benton Riley
   lnk_consultant_id	8706
   lnk_date.lnk_yyyy	2525
   lnk_date.lnk_mm	1
   lnk_date.lnk_dd	1

   The client application then resumes execution, and pauses on the move 256 to wsc-srvc-faultcode-len statement.

4. Press F6 multiple times to step through the code until the appointment you set appears on the list in the runm client. You should see it on line [00005] because it is the fifth appointment set for that day.
5. From the Debug view, press F8 to resume and terminate execution.