Can DwcHeaderProvider read the header from DwcHeaderContainer

[i036207]

Issue Description

we will call other service without http request, e.g. when the application just started ,

Important information:

• Your code

  DefaultHttpDestination destination = DefaultHttpDestination.builder(uri)
  .securityConfiguration(SecurityConfigurationStrategy.FROM_PLATFORM)
  .headerProviders(DwcHeaderProvider.getInstance())
  .authenticationType(authentication)
  .name(remoteServiceDestination.getName())
  .build();

  the DwcHeaderProvider is in package com.sap.cloud.sdk.cloudplatform.connectivity

• Expected outcome We want that DwcHeaderProvider can return the DwcHeader,

• Actual outcome As the the provider is read the header from request header, as in our case we have no request, so with the error Unable to pass on DwC headers to outgoing requests: Did not find any DwC headers in the set of request headers. We have use dwcContextWrapper.withDwcContextForTenantById, in the DwcHeaderContainer all Dwc header is ready, but this can not be pass to the DwcHeaderProvider. I found that there is com.sap.dwc.util.cds.DestinationConfiguration.DwcHeaderProvider, will this Provider work?

Thank you very much

• SDK Version: <cloud-sdk.version>5.11.0</cloud-sdk.version>

• Link to GitHub repo: repo

• Project type, for example:

  • [X] CAP Project
  • [ ] SDK Maven Archetype
  • [ ] None of the above:

• Platform:

  • [ ] Cloud Foundry
  • [X] Deploy with Confidence (Cloud Foundry)
  • [ ] None of the above:

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Checklist

• [ ] Checked out the documentation and Stack Overflow
• [ ] Description provided with all relevant information
• [ ] Exception and stack trace provided
• [ ] Attached debug logs
• [ ] Attached dependency tree
• [ ] Provided Cloud SDK version & link to relevant source code

[KavithaSiva]

Hi @i036207,

As you don't have an incoming HTTP request, I would suggest you to populate CAP's Request Context based on the information available in the DwcHeaderContainer. Populating CAP's Request Context will also enable com.sap.cloud.sdk.cloudplatform.connectivity.DwcHeaderProvider to work out of the box.

@dimamost, I also see that there is a util-cap artifact available, which enables CAP support in DwC, would adding this dependency help in populating CAP's Request Context from DwcHeaderContainer automatically?

Regards, Kavitha

[MatKuhr]

While I think this essentially remains a valid feature request, I'd close this item, because if the integration is improved it would be an improvement on the util-cap package, at least for CAP users. If more input from the Cloud SDK is needed please feel free to ping me (e.g. in this thread) 😉