Issues faced in the Building Side-by-Side Extensions on SAP BTP

[Elroy]

Hi All,

I have implemented the Side by Side Extension on SAP BTP using CAP (https://learning.sap.com/learning-journeys/build-side-by-side-extensions-on-sap-btp) and I am currently facing 3 issues as follows:
1. When I run my Risk Management App locally, I get the below error:

I would like to know which Auth aspect would I need to check to resolve this. This was working fine before but have started to face this after I made the changes to deploy the app in Cloud Foundry.

2. I have deployed the app in Cloud Foundry, but get the below message when I run the app in CF:

Logs:
{"written_at":"2024-04-25T06:25:42.949Z","written_ts":1714026342949000000,"csn_component":"-","correlation_id":"e068b7c6-eae8-497b-5b67-fd6a35c4e48f","type":"log","logger":"nodejs-logger","layer":"/Handler","level":"error","container_id":"10.32.3.5","component_type":"application","component_id":"5e07e58f-51c7-4412-b094-f1c3faadf443","component_name":"risk-management","component_instance":-1,"source_instance":-1,"organization_id":"5345543f-4ece-41a5-8d90-102a920f6be9","organization_name":"cbca00ddtrial","space_id":"ab716db3-0b31-4224-85eb-ea9432035ed3","space_name":"dev","request_id":"e068b7c6-eae8-497b-5b67-fd6a35c4e48f","msg":"GET request to launchpad.htm/launchpad.html completed with status 404 ENOENT: no such file or directory, stat '/home/vcap/app/launchpad.html'"}

3. While running the CI/CD pipeline, the Release stage faced the below error:

[2024-04-25T05:17:30.379Z] ***
[2024-04-25T05:17:30.379Z] hudson.AbortException: [cloudFoundryDeploy] Step execution failed (category: undefined). Error: running command 'cf' failed: cmd.Run() failed: exit status 1
[2024-04-25T05:17:30.379Z] ***

My project is in the below links:
https://github.com/ElAfc/RiskManagement.git

Happy to share any other info that is needed.

Any help on this would be appreciated.

[Ivan-Mirisola]

Hi @Elroy,

After you've made the modifications that enables authentication and authorization via XSUAA, did you open the application using the App Router URL? Did it open your IdP authentication web page and redirected you to your app afterwards? Did you add a Role Collection and assigned it to your user?

It seems that your front-end is performing a call to an OData service - for which you do not have authorization yet to run.

BTW: keep in mind that you cannot make changes to your user's roles and test your application on the same browser session (tabs). You must either close the browse session altogether or open a new browser in incognito mode. This happens because authorizations on BTP are assigned to the SAML token at logon. Once logon has happened, your authorizations will not change throughout the whole browser session. They won't be revalidated until you have performed a new logon.

Best regards,
Ivan 

[Olexandra]

Hello  @Elroy , @Ivan-Mirisola,

could you please help me to find a solution within the same context: I am implementing Side-by-Side Extension on SAP BTP using CAP.

When trying to connect to the API for BusinessPartners entity I receive this error:

[cds] - Error: Request to remote service failed.
    at run (/home/user/projects/risk-management/node_modules/@sap/cds/libx/_runtime/remote/utils/client.js:234:31)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async RemoteService.on_handler (/home/user/projects/risk-management/node_modules/@sap/cds/libx/_runtime/remote/Service.js:265:20)
    at async next (/home/user/projects/risk-management/node_modules/@sap/cds/lib/srv/srv-dispatch.js:68:17)
    at async RemoteService.handle (/home/user/projects/risk-management/node_modules/@sap/cds/lib/srv/srv-dispatch.js:66:10)
    at async RemoteService.handle (/home/user/projects/risk-management/node_modules/@sap/cds/libx/_runtime/remote/Service.js:292:22)
    at async ApplicationService.<anonymous> (/home/user/projects/risk-management/srv/risk-service.js:59:12)
    at async next (/home/user/projects/risk-management/node_modules/@sap/cds/lib/srv/srv-dispatch.js:68:17)
    at async ApplicationService.handle (/home/user/projects/risk-management/node_modules/@sap/cds/lib/srv/srv-dispatch.js:66:10)
    at async ApplicationService.handle (/home/user/projects/risk-management/node_modules/@sap/cds/libx/_runtime/common/Service.js:87:16) {
  statusCode: 502,
  reason: AggregateError [ECONNREFUSED]: 
      at internalConnectMultiple (node:net:1116:18)
      at afterConnectMultiple (node:net:1683:7)
      at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
    code: 'ECONNREFUSED',
    errors: [ [Error], [Error] ],
    message: 'Request to remote service failed.',
    config: {
      timeout: 10000,
      xsrfCookieName: 'XSRF-TOKEN',
      xsrfHeaderName: 'X-XSRF-TOKEN',
      maxContentLength: -1,
      maxBodyLength: -1,
      proxy: false,
      method: 'get',
      baseURL: 'http://localhost:39545/odata/v4/api-business-partner',
      url: "/A_BusinessPartner?$select=BusinessPartner,BusinessPartnerFullName&$orderby=BusinessPartner%20asc&$filter=LastName%20ne%20''%20and%20FirstName%20ne%20''&$top=1000",
      data: undefined
    },
    request: {
      method: 'GET',
      url: "http://localhost:39545/odata/v4/api-business-partner/A_BusinessPartner?$select=BusinessPartner,BusinessPartnerFullName&$orderby=BusinessPartner%20asc&$filter=LastName%20ne%20''%20and%20FirstName%20ne%20''&$top=1000",
      headers: [Object]
    },
    correlationId: '0777953d-190a-4db8-b39f-3def96db2075',
    toJSON: [Function (anonymous)]
  },
  id: '1899257',
  level: 'ERROR',
  timestamp: 1718637330838
}

The strange thing is that the cds is trying to get the API using this wrong url:

[cds] - connect to API_BUSINESS_PARTNER > odata { url: 'http://localhost:39545/odata/v4/api-business-partner' }

When the destination in package.json is set to the correct one:

 "cds": {
    "requires": {
      "API_BUSINESS_PARTNER": {
        "kind": "odata-v2",
        "model": "srv/external/API_BUSINESS_PARTNER",
        "credentials": {
          "url": "https://sandbox.api.sap.com/s4hanacloud/sap/opu/odata/sap/API_BUSINESS_PARTNER/"
        }
      }
    }
  },

Thank you in advance,

Best regards!