Question regarding PROVIDER_PUBLIC_URL

[milofranke]

Hi, I've recently setup the MVD with Kubernetes and encountered a slight unclarity in the README. In section 7.7 it says regarding the EDR request:

Executing this request produces a response that contains both the endpoint where we can fetch the data, and the authorization token

In the Postman collection though, it uses the PROVIDER_PUBLIC_API (http://localhost/provider-qna/public) instead of the returned endpoint (http://provider-qna-dataplane:11002/api/public). It is not quite clear for me why this is the case and how a consumer would know about the PROVIDER_PUBLIC_API in a real-world scenario.

Maybe someone can enlighten me a bit here🙂

[paullatzelsperger]

After successful contract negotiation and transfer process establishment, this information is contained in the EDR (Endpoint Data Reference). In the Postman collection, you will see this in the response body of the Get EDR DataAddress for TransferId request.

This value is influenced by the provider connector registering a public endpoint generator function (check DataPlanePublicApiV2Extension) for HTTP-pull transfers.

[milofranke]

Thanks for the reply! I've already seen that the endpoint is contained in the response. That's exactly why I'm confused that the request Download Data from Public API uses the PROVIDER_PUBLIC_API which is set to http://localhost/provider-qna/public instead of the endpoint from the response which would be http://provider-qna-dataplane:11002/api/public. And also why a request to the endpoint http://provider-qna-dataplane:11002/api/public fails with the error "getaddrinfo ENOTFOUND provider-qna-dataplane". Does it have something to do with the Kubernetes setup?

[paullatzelsperger]

http://provider-qna-dataplane is the Kubernetes service name, which is not accessible from outside the cluster.
We'd have to define an ingress for this and make the provider dataplane register that ingress URL as public endpoint, but for the purposes of MVD it was simply quicker to use an env var.