Consume SOAP Based Web Services with SAP BTP, ABAP Environment
- How to save WSDL files
- How to create ABAP package
- How to create service consumption models
- How to create ABAP classes
- How to consume SOAP based web services
Merve TemelJune 10, 2022
Prerequisites
- You need an SAP BTP, ABAP Environment trial user or a license.
More Information
- Step 2
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Open Eclipse, logon to your trial account and right-click
ZLOCAL, select New > ABAP Package.
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Create a new ABAP package:
- Name:
ZSC_SOAP_XXX - Description: SOAP package
Superpackage:ZLOCAL
Click Next >.
- Name:
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Click Finish.
HINT: Everything should be created in the same package.
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- Step 3
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Add your package
ZSC_SOAP_XXXto Favorite Packages .
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Select your package
ZSC_SOAP_XXXand right-click New > Other ABAP Repository Object.
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Select Service Consumption Model.
Click Next >.
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Create a new service consumption model:
- Name:
ZSC_SCM_XXX - Description: Service consumption model
- Remote Consumption Mode:
Web Service
Click Next >.
- Name:
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Select
EPM_Product_SOAP.WSDLas service metadata file andZSC_as prefix. The prefix makes it easier to obtain unique ABAP names in the system, for all objects that are created.
Click Next >.
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Click Finish.
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Open your service consumption model
ZSC_SCM_XXXand activate it.
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In the Project Explorer you see all the dependent objects generated along with the Service Consumption Model. Your project explorer should look like following. If you don’t see the changes yet, select your package
ZSC_SOAP_XXXpressF5to refresh.
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The web service has a single operation, for which a code snippet is presented. Click Copy to Clipboard.
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- Step 4
This step shows a simple example of a web service consumption.
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Right-click Source Code Library and select New ABAP Class.
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Create a new ABAP class:
- Name:
ZSC_CALL_SERVICE_XXX - Description: Class to call service
Click Next >.
- Name:
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Click Finish.
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Implement the interface
if_oo_adt_classrun:ABAPCopyCLASS zsc_call_service_xxx DEFINITION PUBLIC FINAL CREATE PUBLIC . PUBLIC SECTION. interfaces if_oo_adt_classrun. PROTECTED SECTION. PRIVATE SECTION. ENDCLASS. CLASS zsc_call_service_xxx IMPLEMENTATION. METHOD if_oo_adt_classrun~main. ENDMETHOD. ENDCLASS. -
Paste the copied code snippet inside the main method.
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Adjust your code, change your
DATA(destination)to:DATA(destination) = cl_soap_destination_provider=>create_by_url( i_url = ).The code snippet intends to use a destination from the destination service. In ABAP trial no destination service is available. Alternatively endpoint URL can be passed directly in coding.
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Open
EPM_Product_SOAP.WSDLand copy the endpoint URL.
Add the endpoint URL to your destination:
data(destination) = cl_soap_destination_provider=>create_by_url( i_url = 'https://sapes5.sapdevcenter.com/sap/bc/srt/xip/sap/zepm_product_soap/002/epm_product_soap/epm_product_soap').
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So far the request payload is empty. Provide a valid product to retrieve the price for, e.g.
HT-1000:ABAPCopyDATA(request) = VALUE zsc_req_msg_type( req_msg_type-product = 'HT-1000' ). -
Add the following line to output the response:
ABAPCopyout->write( |{ response-res_msg_type-price } { response-res_msg_type-currency }| ).Save and activate.
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This should be your end result. Your code should look like this:
ABAPCopyCLASS zsc_call_service_xxx DEFINITION PUBLIC FINAL CREATE PUBLIC . PUBLIC SECTION. INTERFACES if_oo_adt_classrun. PROTECTED SECTION. PRIVATE SECTION. ENDCLASS. CLASS zsc_call_service_xxx IMPLEMENTATION. METHOD if_oo_adt_classrun~main. TRY. DATA(destination) = cl_soap_destination_provider=>create_by_url( i_url = 'https://sapes5.sapdevcenter.com/sap/bc/srt/xip/sap/zepm_product_soap/002/epm_product_soap/epm_product_soap'). DATA(proxy) = NEW zsc_co_epm_product_soap( destination = destination ). DATA(request) = VALUE zsc_req_msg_type( req_msg_type-product = 'HT-1000' ). proxy->get_price( EXPORTING input = request IMPORTING output = DATA(response) ). out->write( |{ response-res_msg_type-price } { response-res_msg_type-currency }| ). "handle response CATCH cx_soap_destination_error. "handle error CATCH cx_ai_system_fault. "handle error CATCH zsc_cx_fault_msg_type. "handle error ENDTRY. ENDMETHOD. ENDCLASS. -
Save and activate your coding. Press
F9to run your console application. The price should come back as a result.
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