"Failed to convert response into ODataFeed: An exception of type 'EdmSimpleTypeException' occurred."

[ghost]

Hi team,

I'm trying to build an app that reads info from SFSF following these steps:

• Get a project via archetype (with powershell):

  mvn archetype:generate "-DarchetypeGroupId=com.sap.cloud.sdk.archetypes" "-DarchetypeArtifactId=scp-cf-tomee" "-DarchetypeVersion=RELEASE"

• Add the following to the application\pom.xml In dependencies:

  <dependency>
          <groupId>org.projectlombok</groupId>
          <artifactId>lombok</artifactId>
          <scope>provided</scope>
  </dependency>

  In plugins:

  <plugin>
  <groupId>com.sap.cloud.sdk.datamodel</groupId>
  <artifactId>odata-generator-maven-plugin</artifactId>
  <version>3.13.0</version>
  <executions>
      <execution>
          <id>generate-consumption</id>
          <phase>generate-sources</phase>
          <goals>
              <goal>generate</goal>
          </goals>
          <configuration>
              <inputDirectory>${project.basedir}/edmx</inputDirectory>
              <outputDirectory>${project.build.directory}/vdm</outputDirectory>
              <defaultBasePath>/odata/v2</defaultBasePath>
          </configuration>
      </execution>
  </executions>
  </plugin>
  <plugin>
              <groupId>org.codehaus.mojo</groupId>
              <artifactId>build-helper-maven-plugin</artifactId>
              <version>3.0.0</version>
              <executions>
                  <execution>
                      <phase>generate-sources</phase>
                      <goals>
                          <goal>add-source</goal>
                      </goals>
                      <configuration>
                          <sources>
                              <source>${project.basedir}/vdm</source>
                          </sources>
                      </configuration>
                  </execution>
  </executions>
  </plugin>

• Get the OData metadata file from https://apisalesdemo2.successfactors.eu/odata/v2/JobRequisition/$metadata and place it in ./application/edmx
• Create a destination service (my-destination) and add a destination there pointing to my SFSF instance with basic auth (with user@companyId, the connection is 200:OK)
• Add the destination service in the manifest.yml
• Create a java class to call the destination and get the data:

  
  package com.sap.sdk;

import com.google.gson.Gson; import org.slf4j.Logger; import org.slf4j.LoggerFactory;

import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.List;

import com.sap.cloud.sdk.cloudplatform.connectivity.DestinationAccessor; import com.sap.cloud.sdk.odatav2.connectivity.ODataException;

import com.sap.cloud.sdk.s4hana.connectivity.DefaultErpHttpDestination; import com.sap.cloud.sdk.s4hana.connectivity.ErpHttpDestination; import com.sap.cloud.sdk.s4hana.datamodel.odata.namespaces.rcmjobrequisition.JobRequisition; import com.sap.cloud.sdk.s4hana.datamodel.odata.services.DefaultRCMJobRequisitionService;

@WebServlet("/req") public class JobReqServlet extends HttpServlet {

private static final long serialVersionUID = 1L;
private static final Logger logger = LoggerFactory.getLogger(JobReqServlet.class);

private final ErpHttpDestination destination = DestinationAccessor.getDestination("sfsf-sdk-dest").asHttp()
        .decorate(DefaultErpHttpDestination::new);

@Override
protected void doGet(final HttpServletRequest request, final HttpServletResponse response)
        throws ServletException, IOException {
    try {
        final List<JobRequisition> jobReqs = new DefaultRCMJobRequisitionService()
            .getAllJobRequisition()
            .execute(destination);
        response.setContentType("application/json");
        response.getWriter().write(new Gson().toJson(jobReqs));
    } catch (final ODataException e) {
        logger.error(e.getMessage(), e);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        response.getWriter().write(e.getMessage());
    }
}

}

With all this (I think I'm not missing anything), I do:

mvn clean install

and:

cf push

Everything works well, the hello world servlet works, but when I try to access /req, I get a:
Unable to execute metadata request.

However, I can see that the app is hitting SFSF because if I play with the base path of the service (in the pom.xml) I get 404's coming from SFSF.

Checking everything, I see this when the VDM generator is running:
1. This is the base path I'm giving in the pom:

/odata/v2

2. I can see the generator picking that path correctly:

[main] INFO com.sap.cloud.sdk.datamodel.odata.generator.DataModelGenerator - Default base path: /odata/v2/

3. But this is what the generator processes:

[main] INFO com.sap.cloud.sdk.datamodel.odata.generator.ODataToVdmGenerator - Title: RCMJobRequisition [main] INFO com.sap.cloud.sdk.datamodel.odata.generator.ODataToVdmGenerator - Raw URL: /odata/v2/SFODataSet [main] INFO com.sap.cloud.sdk.datamodel.odata.generator.ODataToVdmGenerator - Java Package Name: rcmjobrequisition [main] INFO com.sap.cloud.sdk.datamodel.odata.generator.ODataToVdmGenerator - Java Class Name: RCMJobRequisition

Clearly, that *SFODataSet* in the URL is not correct. When the app runs, it's tring to get the metadata from .../odata/v2/SFODataSet/$metadata, and that's why it's not finding it.
That SFODataSet is coming from the SFSF metadata:

Job Requisition Template

These entities represent the job requisition template as defined in provisioning. Recruiting (RCM) RCM - Job Requisition ... ``` I tried something else. In the java class, I added ``` .withServicePath("odata/v2") ``` in the call to the destination, leaving it like this:: ``` final List jobReqs = new DefaultRCMJobRequisitionService() .withServicePath("odata/v2/JobRequisition") .getAllJobRequisition() .execute(destination); ``` That replaces the /odata/v2/SFODataSet url that was generated. In this case, the error I get is: ``` "com.sap.cloud.sdk.odatav2.connectivity.ODataQuery","thread":"http-nio-0.0.0.0-8080-exec-3","level":"ERROR","categories":[],"msg":"Failed to convert response into ODataFeed: An exception of type 'EdmSimpleTypeException' occurred." } ``` I've tried different values: odata/v2, odata/v2/, odata/v2/JobRequisition... I can't find the way for this to work. Can you help me find the issue here? I'm using: - Apache Maven 3.6.2 - SAP Cloud SDK 3.13.0 Kr, kepair

[MatKuhr]

Sorry, we somehow missed this one. I replied to your question on stack overflow. Thus I'll close this issue here to not have a duplicate open.