Using delta queries with the Go SDK?

[einarnn]

Are there any good examples of how to use delta queries with the Go SDK for MS Graph? It feels like I've been bashing my head against a brick wall, and I always end up with the error below from msgraphcore.NewPageIterator:

*errors.errorString > error: &errors.errorString{s:"response does not have next link accessor"}

...when I can clearly see that the initial response does have an @odata.nextLink field populated.

A full example of how to use a delta query against https://graph.microsoft.com/v1.0/users would be very helpful!

Cheers,

Einar

[baywet]

Hi @einarnn
Thanks for using the Go SDK and for reaching out.
Can you share with us which version of msgraph-sdk-go and msgraph-sdk-go-core you're using please? We've made some changes to the properties names and I wanted to make sure you're using the latest versions.
Also, could you share your code snippet please?

[einarnn]

Extract from go.mod:

github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.1.0
github.com/microsoft/kiota-authentication-azure-go v0.4.1
github.com/microsoftgraph/msgraph-sdk-go v0.38.1
github.com/microsoftgraph/msgraph-sdk-go-core v0.28.1

Code currently is:

	requestConfiguration := delta.DeltaRequestBuilderGetRequestConfiguration{
		// ??? not sure if anything needed here
	}

	result, err := client.Users().Delta().Get(
		context.Background(),
		&requestConfiguration,
	)
	if err != nil {
		printOdataError(err)
		log.Fatalf("Error getting users: %v\n", err)
	}
	log.Printf("@odata.context  = %v\n", *result.GetAdditionalData()["@odata.context"].(*string))
	log.Printf("@odata.nextLink = %v\n", *result.GetAdditionalData()["@odata.nextLink"].(*string))
	log.Printf("result.GetValue()[0] = %v", *result.GetValue()[0].GetDisplayName())

	pageIterator, err := msgraphcore.NewPageIterator(result, adapter, delta.CreateDeltaResponseFromDiscriminatorValue)
	if err != nil {
		printOdataError(err)
		log.Fatalf("Error getting page iterator: %v", err)
	}

Fails currently where I try to create the pageIterator with the error message given at the start of this thread.

[baywet]

Thanks for the additional information.
First, the generated code is wrong, the delta response should be re-used across all the delta endpoints and not re-defined. Second it should contain a next link field + accessors (what the iterator is complaining about).
This is something we have corrected in the conversion library, but we haven't released the tool that does the conversion yet. I've just authored a pull request to do so, hopefully it gets merged by EOD today and the changes get picked up by the weekly release pipeline tomorrow.

[einarnn]

@baywet -- Thanks!

How will I know which libraries & versions to pick up that will have the above changes?