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Author's profile photo Midhun VP

Creating OData Service from SOAP using HCI (beta)

OData provisioning in HCI allows you to create OData from SOAP service. So you could consume it in applications such as Fiori and Mobile.

In this blog I am describing how to create OData service from an existing SOAP service exposed from an on-premise backend system.



/wp-content/uploads/2016/04/2016_04_15_14_08_17_930697.jpg

Creating OData Model from SOAP WSDL

From the above diagram you note that I am using HANA Cloud Connector to link between HCI and existing on-premise system.

OData model can be created by importing the WSDL file to HCI web tooling. You can download the WSDL file from here. You will be able to create the OData model using this WSDL but you will not be able to test the service since this SOAP service is exposed from an SAP internal system.

  • Login to HCI cockpit and choose Design. /wp-content/uploads/2016/04/2016_04_15_14_17_16_930752.jpg
  • Next, click on Create. /wp-content/uploads/2016/04/2016_04_15_14_18_51_930753.jpg
  • Provide a name to your package, then click on Add button, and choose OData Service. /wp-content/uploads/2016/04/2016_04_15_14_21_39_930764.jpg
  • Provide a name to your OData Artifact and click OK. /wp-content/uploads/2016/04/2016_04_15_14_28_07_930765.jpg
  • On the new view, click on Import Model Wizard icon. /wp-content/uploads/2016/04/2016_04_15_14_30_54_930766.jpg
  • Choose Data Source Type as SOAP and browse the SOAP WSDL file. /wp-content/uploads/2016/04/2016_04_15_14_33_35_930778.jpg
  • Click on Step 2. /wp-content/uploads/2016/04/2016_04_15_14_39_12_930799.jpg
  • Choose SOAP operation, then choose Step 3. /wp-content/uploads/2016/04/2016_04_15_14_40_19_930809.jpg
  • Choose a primary key for the OData collection (It is mandatory to have at least one primary key in one OData collection). Next, click Finish./wp-content/uploads/2016/04/2016_04_15_14_40_46_930811.jpg
  • You should now have returned to the Define and Provision an OData Service view. Click create binding in the Query row./wp-content/uploads/2016/04/2016_04_15_15_03_25_930824.jpg
  • In the popup, select the getCustomers Operation. The end point will be generated automatically. Click OK./wp-content/uploads/2016/04/2016_04_15_15_08_49_930825.jpg
  • Navigate to Integration Flow Editor. /wp-content/uploads/2016/04/2016_04_15_15_16_32_930853.jpg/wp-content/uploads/2016/04/2016_04_15_15_22_13_930860.jpg
    • Click on the white area of Integration flow, then click on Runtime Configuration. Provide Namespace Mapping value. Note: you can find the namespace value from WSDL. /wp-content/uploads/2016/04/2016_01_25_13_22_28_930940.png
  • Replace Content Modifier with Mapping. /wp-content/uploads/2016/04/2016_04_15_15_57_53_930896.jpg
  • And, define a source source and target mapping. /wp-content/uploads/2016/04/2016_04_15_16_00_11_930897.jpg
  • Right click on each property under Target and choose Assign Constant. The constant value should be null as given below (remove the text “Enter Value”).  Click Ok. /wp-content/uploads/2016/04/2016_04_15_16_18_00_930904.jpg
  • Note: Mapping was added to pass a payload with empty data with it. This step is required for this specific SOAP service used. A screenshot of the SOAP service from SOAPUI is given for your understanding. /wp-content/uploads/2016/04/2016_04_15_16_25_01_930920.jpg
  • Join Mapping1 with Start and Request-Reply. For example if you hover the cursor above the Start, a Connector appears, click on it and connect it with Mapping1. Do the same from Mapping1 to Request-Reply. mapping connection.png
  • Click on Receiver channel. Then, click on Adapter Specific and provide the below details. Note: the values provided are taken from the WSDL. Also you can note that when choosing On-Premise as Proxy Type the address represents HCC virtual host and port. Under Adapter Specific you need to choose No Client Authentication.

      /wp-content/uploads/2016/04/2016_01_27_11_41_11_930968.png

  • Click on Response_Mapping1 to view its properties and then click the name to open the mapping. /wp-content/uploads/2016/04/responsemapping_930970.png
  • Complete the mapping by dragging the source node to the target node. For example drag ns1:getCustomers to the node getCustomersSet. The mapping should look like the following and click OK.  /wp-content/uploads/2016/04/2016_01_25_13_21_17_930974.png
  • Click OK.
  • Click Save. Then deploy your OData service. /wp-content/uploads/2016/04/2016_01_27_11_48_44_930975.png
  • You have now successfully deployed an integration flow that will provide an OData Service backed by a SOAP Web Service, congratulations!
  • Construct the endpoint URL. The format of the URL is <IFLMAP URL>/gw/odata/<OData Service Namespace>/<OData Service Name>;v=1. (More details)
  • Finally, test your OData end point URL in a web browser. /wp-content/uploads/2016/04/2016_01_25_13_27_25_930976.png/wp-content/uploads/2016/04/2016_01_27_13_52_12_930977.png

You are free to use this OData service in any other applications like Fiori and mobile apps.

To know how to use this OData service in HCPMS mobile app read this blog: How To Create HCPMS Apps With Non OData Backend (beta)

Regards, Midhun

SAP Technology RIG

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      13 Comments
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      Author's profile photo Nagesh Caparthy
      Nagesh Caparthy

      Hi Midhun,

      Can you please help me with the HCI URL. I believe I have an account but unable to locate the URL to login.

      I have https://cloudintegration.hana.ondemand.com/ but unable to see anything as in this blog.

      Regards,

      Nagesh

      Author's profile photo Bhavesh Kantilal
      Bhavesh Kantilal

      Nagesh,

      Access your account at : Cloud Cockpit

      Out here, you can get your tenant details under Account --> Display Name

      Use this and then form the URL as

      https://<tenant>-tmn.hci.eu1.hana.ondemand.com/itspaces


      Do note the URL assumes your account is in the EU Data Centre of HCI. For other Data Centers adapt this accordingly.


      Regards

      Bhavesh

      Author's profile photo Bhavesh Kantilal
      Bhavesh Kantilal

      Hello Midhun,

      I have followed all steps exactly as in your blog and I get the error in my Integration Flow which does not start. The error I get is : The CamelContext did not start. Please check the tail log for details."

      The tail log provides the error as "2016 04 22 08:24:03#+00#ERROR#org.apache.camel.blueprint.BlueprintCamelContext##anonymous#Blueprint Extender: 1#na#avrhcin#p0208iflmap#web##Error occurred during starting Camel: CamelContext(CustomersListDemo_SAP_1) due Failed to create Producer for endpoint: Endpoint[cxf://bean:Receiver_m10_]. Reason: org.apache.cxf.service.factory.ServiceConstructionException: Could not find definition for port {"http://webservice.SalesOrder.test.org"}ServiceImplementation.org.apache.camel.FailedToCreateProducerException: Failed to create Producer for endpoint: Endpoint[cxf://bean:Receiver_m10_]. Reason: org.apache.cxf.service.factory.ServiceConstructionException: Could not find definition for port {"http://webservice.SalesOrder.test.org"}ServiceImplementation.

      Have done this for both the WSDL in your Blog and for another WSDL ( CurrencyConvertor ) and the error is the same. Any idea what could be wrong?

      Regards

      Bhavesh

      Author's profile photo Vinothkumar T
      Vinothkumar T

      Hi,

      While login to HCI I am getting only Discover option in the dashboard, How to enable Design , monitor and other option .. as i am not able to view the same.

      Regards,

      Vinoth

      Author's profile photo Former Member
      Former Member

      Hi Midhun,

      Eventhough I click on Create binding in query row in "Define and Provision an OData Service" view ,I'm not getting popup to select my service .

      I'm wondering is there a way to add it(binding) manually ,may be by entering binding piece of code in "ODATA Model Editor".

      Thanks

      Venkat

      Author's profile photo Bing Liu
      Bing Liu

      Hi Midhun,

      When I click on Add button, I can't find OData Service with reference to the fourth picture.
      Is it normal?

      Author's profile photo Kumar Amar
      Kumar Amar

      Hello Bing,

      Not sure if you already got response. Anyways still thought to reply you.

      ODate Service on Cloud Integration is not enabled by default. Its is still a Beta feature and you can go through https://websmp201.sap-ag.de/public/beta to get it enabled for your tenant application and proceed.

       

      Thanks,

      Amar

      Author's profile photo ankit Soni
      ankit Soni

      Hi @Midhun
      I don't see option to create ODATA service in integration package. Is there anything required to get that option ?

      Thanks
      Ankit

      Author's profile photo Former Member
      Former Member

      Hi Ankit

      By any chance did you find out, how this can be done ?

      I face the same issue.

       

      Author's profile photo Kumar Amar
      Kumar Amar

       

      Hello Priya,

      ODate Service on Cloud Integration is not enabled by default. Its is still a Beta feature and you can go through https://websmp201.sap-ag.de/public/beta to get it enabled for your tenant application and proceed.

      Thanks,

      Amar

      Author's profile photo Kumar Amar
      Kumar Amar

      Hello Priya

      ODate Service on Cloud Integration is still a Beta feature. Kindly use https://websmp201.sap-ag.de/public/beta to enable for your tenant application.

      Amar

      Author's profile photo Kumar Amar
      Kumar Amar

       

      Hello Ankit,

      Not sure if you already got response. Anyways still thought to reply you.

      ODate Service on Cloud Integration is not enabled by default. Its is still a Beta feature and you can go through https://websmp201.sap-ag.de/public/beta to get it enabled for your tenant application and proceed.

      Thanks,

      Amar

      Author's profile photo Former Member
      Former Member

      Hi Midhun,

       

      I can’t download the WSDL from below address. Could you give new address_

      http://scn.sap.com/servlet/JiveServlet/download/140858-533781/SalesOrder.wsdl.txt.zip

      Thanks

      Aslı